Biodiversity Data Journal :
Taxonomic Paper
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Corresponding author: AJ Fleming (ajfleming604@gmail.com)
Academic editor: Daniel Whitmore
Received: 05 Sep 2018 | Accepted: 18 Jun 2019 | Published: 28 Jun 2019
© 2019 AJ Fleming, D. Monty Wood, M. Alex Smith, Tanya Dapkey, Winnie Hallwachs, Daniel Janzen
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Fleming A, Wood D, Smith M, Dapkey T, Hallwachs W, Janzen D (2019) Twenty-two new species in the genus Hyphantrophaga Townsend (Diptera: Tachinidae) from Area de Conservación Guanacaste, with a key to the species of Mesoamerica. Biodiversity Data Journal 7: e29553. https://doi.org/10.3897/BDJ.7.e29553
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We describe 22 new species in the genus Hyphantrophaga Townsend, 1892 (Diptera: Tachinidae) from Area de Conservación Guanacaste (ACG) in north-western Costa Rica. All species were reared from an ongoing inventory of wild-caught caterpillars spanning a variety of families (Lepidoptera: Bombycidae, Crambidae, Depressariidae, Doidae, Erebidae, Euteliidae, Gelechiidae, Geometridae, Hedylidae, Hesperiidae, Immidae, Lasiocampidae, Limacodidae, Megalopygidae, Mimaloniidae, Noctuidae, Nolidae, Notodontidae, Nymphalidae, Papilionidae, Pieridae, Phiditiidae, Pterophoridae, Pyralidae, Riodinidae, Saturniidae, Sphingidae, Thyrididae, Tortricidae and Zygaenidae). We provide a morphological description of each species together with information on life history, molecular data and photographic documentation. In addition to the new species, we provide a redescription of the genus, as well as the redescription of three previously described species, which were also collected within ACG during this study: Hyphantrophaga angustata (van der Wulp), Hyphantrophaga myersi (Aldrich) and Hyphantrophaga virilis (Aldrich & Webber).
The following 22 new species of Hyphantrophaga are described: Hyphantrophaga adrianguadamuzi Fleming & Wood sp. n., Hyphantrophaga albopilosa Fleming & Wood sp. n., Hyphantrophaga anacordobae Fleming & Wood sp. n., Hyphantrophaga calixtomoragai Fleming & Wood sp. n., Hyphantrophaga calva Fleming & Wood sp. n.., Hyphantrophaga ciriloumanai Fleming & Wood sp. n., Hyphantrophaga danausophaga Fleming & Wood sp. n., Hyphantrophaga diniamartinezae Fleming & Wood sp. n., Hyphantrophaga duniagarciae Fleming & Wood sp. n., Hyphantrophaga edwinapui Fleming & Wood sp. n., Hyphantrophaga eldaarayae Fleming & Wood sp. n., Hyphantrophaga eliethcantillanoe Fleming & Wood sp. n., Hyphantrophaga gilberthampiei Fleming & Wood sp. n., Hyphantrophaga guillermopereirai Fleming & Wood sp. n., Hyphantrophaga hazelcambroneroae Fleming & Wood sp. n., Hyphantrophaga luciariosae Fleming & Wood sp. n., Hyphantrophaga manuelriosi Fleming & Wood sp. n., Hyphantrophaga morphophaga Fleming & Wood sp. n., Hyphantrophaga nigricauda Fleming & Wood sp. n., Hyphantrophaga osvaldoespinozai Fleming & Wood sp. n., Hyphantrophaga pabloumanai Fleming & Wood sp. n. and Hyphantrophaga similis Fleming & Wood sp. n.
The following are proposed by Wood as new synonyms of Hyphantrophaga Townsend, 1892: Brachymasicera Townsend, 1911 syn. n., Ommasicera Townsend, 1911 syn. n., Ophirosturmia Townsend, 1911 syn. n., Patillalia Curran, 1934 syn. n. and Ypophaemyiops Townsend, 1935 syn. n.
The following nine new combinations are proposed as a result of the new synonymies: Hyphantrophaga adamsoni (Thompson, 1963), comb. n., Hyphantrophaga fasciata (Curran, 1934), comb. n., Hyphantrophaga glauca (Giglio-Tos, 1893), comb. n., Hyphantrophaga gowdeyi (Curran, 1926), comb. n., Hyphantrophaga myersi (Aldrich, 1933), comb. n., Hyphantrophaga nigripes (Townsend, 1928), comb. n., Hyphantrophaga optica (Schiner, 1868), comb. n., Hyphantrophaga polita (Townsend, 1911), comb. n., Hyphantrophaga subpolita (Townsend, 1912), comb. n.
caterpillar, tropical, Goniini, parasitoid, fly, rain forest, dry forest, cloud forest, ACG
The New World genus Hyphantrophaga (Exoristinae: Goniini) was erected by
In an afterword to the description, Townsend suggested that M. hyphantriae could be differentiated from all other species of Meigenia by the lack of discal setae present on all abdominal segments with the exception of T5 and the morphology of the face (two character states useful in differentiating species, but that we now see as variable within the genus). As in Houghia Coquillett, 1897, the accurate identification of Hyphantrophaga is based on a characteristic “gestalt” that comprises the combination of features within the genus and the fact that the females lay microtype eggs.
Since its original description, the genus has seen many changes.
Hyphantrophaga belongs to the tribe Goniini; females of all members of this tribe lay "microtype" eggs directly on the foliage, often in direct proximity to or around the host caterpillar. As the host feeds, the tachinid egg is consumed along with the leaf fragments. Upon hatching, the first instar larva traverses the gut wall and finds its way to a "safe" space within the caterpillar's body, where it remains until it eventually kills its host and continues feeding on the carcass until it pupates. Only very rarely does the larva not kill the caterpillar (e.g.
All of the new species of Hyphantrophaga reared from Area de Conservaci ón Guanacaste (ACG) described in this paper are based on differences in external morphology, male terminalia, CO1 (cox1 or cytochrome oxidase 1) gene sequences and on comparison by AJF and DMW with other named species of Hyphantrophaga from other regions. It is important to note, however, that these new species are not to be taken as an indication of the total number of species of Hyphantrophaga, even in such a small country as Costa Rica. Comparisons of tachinids collected during the ACG inventory with those present in the national collection in the Museo Nacional de Costa Rica (formerly INBIO) show minimal overlap in species, suggesting that the tachinid fauna in other parts of the country is quite different from that of ACG and requires much additional study. Our study provides the descriptions of 22 new species of Hyphantrophaga; we also synonymise five genera under Hyphantrophaga, leading to nine new combinations of species names under that genus and thereby increasing the total number of species in the genus from 15 to 46. There may also be a small number of apparent species of Hyphantrophaga that have been reared by the ACG inventory and which at present can only be distinguished by their gene sequences (henceforth referred to as DNA barcodes) and host records or of which there is insufficient material to make an accurate diagnosis. We have elected to leave such species for potential later description once additional material is available.
The present study is part of a larger group of studies documenting the tachinid species living within ACG (http://www.acguanacaste.ac.cr) and providing names for new species as they are discovered (
All flies and rearing information described here were collected by the ongoing ACG inventory of the caterpillars, their food plants and their parasitoids, throughout the major ACG terrestrial ecosystems (
The scope of our treatment of the genus Hyphantrophaga is limited to those species found in the Mesoamerican region, from the Isthmus of Tehuantepec in southern Mexico to the Darién gap along the southern border of Panama with Colombia. While we took into account all known species in our comparisons and diagnoses of the new species, only the species distributed within this region are included in the key.
The species accounts and descriptions presented in this paper are complemented by a series of colour photos, used to illustrate the morphological differences and similarities amongst the species. The morphological terminology used follows
Examples of measurements and landmark anatomical features.
The management of voucher specimens has been detailed in previous papers in this series (
All inventoried specimens, discussed herein, were collected under Costa Rican government research permits issued to DHJ and the Tachinidae samples were exported under permit by DHJ from Costa Rica to their final depository in the CNC. Tachinid identifications for the inventory are conducted by DHJ in coordination with a) visual inspection of morphology by AJF and DMW, b) DNA barcoding by MAS and BIO and c) databasing and association with host caterpillars by DHJ and WH, through the inventory itself.
The date of capture cited for each specimen is the date of eclosion of the fly and not the date of capture of the caterpillar. Eclosion date is much more representative of the time when that fly species is on the wing than is the time of capture of the parasitised caterpillar. The “collector” is the parataxonomist who found the caterpillar, rather than the person who later retrieved the newly eclosed fly and processed it by freezing, pinning, labelling and oven-drying. The type-series of the newly-described species are housed in the Diptera collection of the Canadian National Collection (CNC).
AMNH American Museum of Natural History, New York, New York, USA
CAS California Academy of Sciences, San Francisco, California, USA
CNC Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa, Canada
MCZ Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, USA
MACN Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Buenos Aires, Argentina
MNHN Muséum National d'Histoire Naturelle, Paris, France
NHMUK Natural History Museum, London, United Kingdom (formerly British Museum (Natural History))
NHMW Naturhistorisches Museum Wien, Vienna, Austria
SEMK Snow Entomological Museum, University of Kansas, Lawrence, Kansas, USA
USNM National Museum of Natural History, Washington, D.C., U.S.A. (formerly United States National Museum)
As in the other papers in this series, our convention for naming undescribed host species follows a standardised, interim naming system used for taxonomic units considered as distinct species and identified by DNA barcodes. Interim names are given in the format "Eois Janzen52" or "Caviria reginaDHJ01", where the "species epithet" is either composed of the name of the taxonomist who identified the species and a number or the name of a species-group followed by a code. This prevents confusion with already described species while maintaining traceability of each undescribed species within the ACG project.
We generated DNA extracts from single legs using a standard glass fibre protocol (
In some cases of ecological specialisation displaying only slight (or in one case, no) barcode divergences, we amplified the internal transcribed spacer regions (ITS1 & ITS2) of the ribosomal RNA. Primers for ITS1 occur in conserved protein coding areas (18S and 5.8S). PCR reactions were carried out in 12.5 ml reaction volumes containing: 2.5 mM MgCl2, 25 pmol of each primer, 50 mM dNTPs, 10 mM Tris·HCl (pH 8.3), 50 mM KCl, 10-20 ng (1–2 ml) of genomic DNA and 1 unit of Platinum TaqDNA polymerase, using a thermocycling profile of 1 cycle of 2 min at 94°C, 40 cycles of 40 sec at 94°C, 40 sec at 67°C and 2 min at 72°C, with a final step of 5 min at 72°C. We directly sequenced the amplifications using the primers CAS18Fs1 and CAS5p8sB1d (
Our analysis of the genus Hyphantrophaga required us to create a special group to separate a pair of cryptic species, including two of the new species described herein, Hyphantrophaga morphophaga sp. n. and Hyphantrophaga danausophaga sp. n. As of the writing of this paper, species in this group are distinguishable only by life history and behaviour. The implications and diagnosis of this special group, termed here the "Hyphantrophaga morphophaga species group", will be discussed in the analysis section below.
The species, belonging to this group, share morphological and molecular similarities but differ considerably in their host preference, life history and habitat. Both species share the following combination of character states: pedicel brown to black, concolorous with first flagellomere; thorax hirsute, covered in black setulae throughout; three katepisternal setae; median marginal setae present on all tergites including ST1+2; discal setae absent on all but T5; males with distinctive sex patch; and hind coxa either setose or bare.
Hyphantrophaga Townsend, 1892: 247. Type species: Meigenia hyphantriae Townsend, 1891, by original designation.
Eusisyropa Townsend, 1908: 97. Type species: Tachina blanda Osten Sacken, 1887, by monotypy. Synonymy by
Brachymasicera Townsend, 1911: 133. Type species: Brachymasicera polita Townsend, 1911, by original designation. Syn. n.
Ommasicera Townsend, 1911: 145. Type species: Ommasicera chaetosa Townsend, 1911, by monotypy. Syn. n. [Original description of genus based on female reproductive system, full description of the adult was not provided until
Oomasicera. Incorrect subsequent spelling of Ommasicera Townsend, 1911 (
Ophirosturmia Townsend, 1911: 133. Type species: Ophirosturmia cincta Townsend, 1911, by original designation. Syn. n.
Patillalia Curran, 1934: 459. Type species: Patillalia fasciata Curran, 1934, by original designation. Syn. n.
Ypophaemyiops Townsend, 1935: 233. Type species: Prophryno myersi Aldrich, 1933, by original designation. Syn. n.
Other species included in Hyphantrophaga Townsend, 1892
adamsoni Thompson, 1963: 293 (Zenillia). Holotype female (CNC). Type locality: Trinidad, St. Augustine. Comb. n.
angustata van der Wulp, 1890: 70 (Exorista). Holotype male (NHMUK). Type locality: Mexico, Guerrero, Chilpancingo, 4600 ft.
coquilletti Aldrich & Webber, 1924: 18 (Zenillia). Holotype male (USNM). Type locality: USA, Texas, Belfrage.
auratofrontalis Brèthes, 1908: 475 (Exorista). Syntypes male and female (MACN). Type locality: Argentina, Buenos Aires.
autographae Sellers, 1943: 23 (Zenillia). Holotype male (USNM). Type locality: Cuba, Baraguá.
blanda Osten Sacken, 1887: 162 (Tachina (Exorista)). Holotype female (MCZ). Type locality: unknown (Massachusetts according to
boarmiae Coquillett, 1897: 95 (Exorista). Lectotype female (USNM), by designation of
hypenae Coquillett in Howard 1897: 47 (Exorista). Nomen nudum
proserpina Williston, 1889: 1919 (Exorista, as subspecies of blanda). Holotype male (depository unknown). Type locality: unknown.
blandita Coquillett, 1897: 96 (Exorista). Holotype female (USNM). Type locality: USA, New Hampshire, Franconia.
blandoides Thompson, 1963: 297 (Eusisyropa). Holotype female (CNC). Type locality: Trinidad, Sta. Cruz Valley.
brasiliensis Moreira, 1915: 227 (Masicera). Type status unclear, depository unknown. Type locality: Brazil, Rio de Janeiro. Nomen dubium
chaetosa Townsend, 1911: 145 [description based on female reproductive system; full description of adult in
collina Reinhard, 1944: 68 (Zenillia). Holotype male (SEMK). Type locality: USA, Arizona, Chiricahua Mountains.
euchaetiae Sellers, 1943: 13 (Zenillia). Holotype male (USNM). Type locality: USA, New York, Clayton.
fasciata Curran, 1934: 469 (Patillalia). Holotype female (AMNH). Type locality: Panama, Canal Zone, Patilla Point. Comb. n.
glauca Giglio-Tos, 1893: 6 (Masicera). Holotype female (MZUT). Type locality: Mexico.
gowdeyi Curran, 1926: 112 (Zenillia). Holotype female (AMNH). Type locality: Jamaica, St. Andrew Parish, Cinchona Botanical Gardens (as Hill Gardens). Comb. n.
hyphantriae Townsend, 1891: 176 (Meigenia). Lectotype male (USNM), by present designation of Wood. Type locality: USA, New Mexico, Las Cruces.
ceratomiae Coquillett, 1897: 101 (Exorista). Holotype male (USNM). Type locality: USA, Texas, Fort Worth.
desmiae Sellers, 1943: 16 (Zenillia). Holotype male (USNM). Type locality: USA, California, Exeter.
myersi Aldrich, 1933: 173 (Prophryno). Holotype male (NHMUK). Type locality: Guyana (as British Guiana), Pakeraima Mts., Upper Ireng River. Comb. n.
nigripes Townsend, 1928: 159 (Brachymasicera). Holotype female (USNM). Type locality: Peru, Chiclayo, Pomalca. Comb. n.
niveifacies Macquart, 1851a: 162 [also Macquart, 1851b: 189] (Exorista). 2 syntypes: 1 male, 1 female (MNHN). Type locality: Brazil, Bahia, Salvador (as “Bahia”).
optica Schiner, 1868: 327 (Exorista). Holotype female (NHMW). Type locality: Brazil. Comb. n.
polita Townsend, 1911: 143 (Brachymasicera). Holotype female (USNM). Type locality: Peru, Piura. Comb. n.
scolex Reinhard, 1953: 56 (Zenillia) Holotype female (CAS). Type locality: USA, California, Los Angeles County, Tanbark Flat.
sellersi Sabrosky, 1983: 254 (Eusisyropa). 12 syntypes: 6 males, 6 females (USNM). Type locality: USA, Mississippi, Oxford; [new name for boarmiae of authors, not Coquillett, 1897 (
subpolita Townsend, 1912: 341 (Brachymasicera). Holotype female (USNM). Type locality: Peru, Piura. Comb. n.
tucumanensis Sellers, 1943: 21 (Zenillia). Holotype male (USNM). Type locality: Argentina, Tucuman.
virilis Aldrich & Webber, 1924: 40 (Zenillia). Holotype male (USNM). Type locality: USA, Illinois, Chicago [as New York, Rye, in error - see
Male. Head (Fig.
Female. As male except in the following traits: head with two pairs of proclinate orbital setae. Abdomen slightly more globose than in male; T5 folded over into a narrow slit, a trait stereotypical of the tribe Goniini. In cases where sexual dimorphism was observed, the differing character states are mentioned in the species descriptions.
Hyphantrophaga, as all other Goniini, is difficult to characterise to tribe based on morphological character states and can only be reliably ascribed to this tribe (sensu Herting 1984) based on its microtype ovipary. However, Hyphantrophaga does possess a combination of traits that can be considered stereotypical of the group: prosternum setose; males of all species with two pairs of well-developed reclinate upper orbital setae, proclinate orbital setae only present in females (a character state that distinguishes them from males of Houghia Coquillet and Carcelia Robineau-Desvoidy, in which orbital setae are absent or proclinate); the ocellar setae are always proclinate and in most species arise beside the anterior ocellus; the parafacial, katepimeron and the upper half or more of the facial ridge, are bare; 3–4 well-developed and evenly-spaced postsutural supra-alar setae, the anteriormost being stouter than the first postsutural dorsocentral seta; median discal setae present only on abdominal T5 (in most species); the three major setae of the postpronotum are arranged in a triangle; wings lacking costal spine; hind coxa can be setose or bare (in some cases this character state can be sexually variable within species). The height of the gena is about 1/5 to 1/10 the height of the head, which approaches the condition found in some Houghia and differentiates Hyphantrophaga from the members of Carcelia. The eyes of all species of Hyphantrophaga are haired; however, in a few species, the ommatrichia can be short and sparse. The 22 species of Hyphantrophaga described herein can be identified to genus using the keys in both
Ubiquitous throughout the New World, inhabiting a wide variety of ecosystems from south-eastern Canada and the north-eastern USA, west to California and south to Argentina and Brazil.
Within the ACG inventory, Hyphantrophaga has been reared from a wide variety of Lepidoptera hosts throughout the diverse ecosystems of the research area, including: Bombycidae, Crambidae, Depressariidae, Doidae, Erebidae, Euteliidae, Gelechiidae, Geometridae, Hedylidae, Hesperiidae, Immidae, Lasiocampidae, Limacodidae, Megalopygidae, Mimaloniidae, Noctuidae, Nolidae, Notodontidae, Nymphalidae, Papilionidae, Pieridae, Pterophoridae, Pyralidae, Riodinidae, Saturniidae, Sphingidae, Thyrididae, Tortricidae and Zygaenidae.
Hyphantrophaga brasiliensis (Moreira, 1915) is treated as a nomen dubium within Hyphantrophaga, as it has proven impossible to ascertain the repository or even the existence of the type material.
Male (Fig.
Female. Length: 6–9 mm. As male, differing only by the presence of two pairs of proclinate orbital setae.
Hyphantrophaga adrianguadamuzi sp. n. can be distinguished from all other Hyphantrophaga species by the following combination of traits: pedicel black (concolorous with postpedicel), palpus brown basally and orange apically, two katepisternal setae, hind coxa setose, colouration of T5 matching rest of tergites, median marginal setae absent on ST1+2 and discal setae present on T3–T5.
Hyphantrophaga adrianguadamuzi sp. n. is named in recognition of Adrian Guadamuz Chavarría's dedication and work in finding and rearing the ACG caterpillars that contained tachinid larvae.
Costa Rica, ACG, Guanacaste Province, 295–733 m elevation.
Hyphantrophaga adrianguadamuzi sp. n. has been reared five times from one species of Lepidoptera in the family Pyralidae, Paridnea holophealis Ragonot, 1892, in dry forest and dry-rain lowland intergrade.
Male (Fig.
Female. Length: 7–9 mm. As male, differing only by the presence of two pairs of proclinate orbital setae.
Hyphantrophaga albopilosa sp. n. can be distinguished from all other Hyphantrophaga species by the following combination of traits: brilliant silver parafacial, two katepisternal setae, dense covering of blond setulae along lateral surface of thorax, brilliant yellow legs, hind coxa bare and abdomen yellow in ground colour.
From the Latin adjective “albopilosa”, meaning "white-haired", in reference to its blond thoracic setulae.
Costa Rica, ACG, Alajuela and Guanacaste Provinces, 390–645 m elevation.
Hyphantrophaga albopilosa sp. n. has been reared six times from a single species of Lepidoptera in the family Sphingidae, Adhemarius ypsilon (Rothschild & Jordan, 1903), in rain forest.
Male (Fig.
Female. Length: 8–11 mm. As male, differing only by the presence of two pairs of proclinate orbital setae.
Hyphantrophaga anacordobae sp. n. can be distinguished from all other Hyphantrophaga species by the following combination of traits: three katepisternal setae, legs entirely black, hind coxa bare, ground colour of abdomen dark reddish-brown (appearing black under certain angles of light) and median marginal setae absent from ST1+2.
Hyphantrophaga anacordobae sp. n. is named in recognition of Anabelle Córdoba Alemán's dedication and work in finding and rearing the ACG caterpillars that contained tachinid larvae.
Costa Rica, ACG, Guanacaste Province, 525–1060 m elevation.
Hyphantrophaga anacordobae sp. n. has been reared 13 times from two species of Lepidoptera in the family Nymphalidae, Morpho helenor (Cramer, 1776) and Morpho justitiae (Salvin & Godman, 1868), in rain forest, cloud forest and dry-rain lowland intergrade.
Male (Fig.
Female. Length: 8–11 mm. As male, differing only by the presence of two pairs of proclinate orbital setae.
Hyphantrophaga angustata (van der Wulp) can be distinguished from all other Hyphantrophaga species by the following combination of traits: pedicel orange at base, palpus reddish-orange apically, black basally, three katepisternal setae, legs yellow with dense tomentum making them appear black, hind coxa bare, abdominal ground colour black, abdomen with silver tomentum, T5 with silver tomentum ventrolaterally, median marginal setae present on ST1+2.
From south-western USA south to Costa Rica; Costa Rica, ACG, Guanacaste Province, 295–325 m elevation.
Within ACG inventory, Hyphantrophaga angustata (van der Wulp) has been reared 10 times from two species of Lepidoptera in the family Thyrididae, Dysodia speculifera (Sepp, 1852) and Dysodia immargo Dyar, 1913, in dry forest and dry-rain lowland intergrade.
Male (Fig.
Female. Length: 9–12 mm. As male, differing only by the presence of two pairs of proclinate orbital setae.
Hyphantrophaga calixtomoragai sp. n. can be distinguished from all other Hyphantrophaga species by the following combination of traits: ocellar triangle gold, fronto-orbital plate silver and setulose, pedicel orange, three katepisternal setae, hind coxa setose, abdominal tomentum silver throughout, median marginal setae present on ST1+2, discal setae absent from T3 and T4 and sex patch absent.
Hyphantrophaga calixtomoragai sp. n. is named in recognition of Calixto Moraga Medina's dedication and work at finding and rearing the ACG caterpillars that contained tachinid larvae.
Costa Rica, ACG, Guanacaste Province, 8–215 m elevation.
Hyphantrophaga calixtomoragai sp. n. has been reared six times from six different species of Lepidoptera in the family Erebidae, Metria leucoplaga (Hampson, 1910), Melipotis perpendicularisDHJ02, Toxonprucha Poole01, Abacena accincta Felder & Rogenhofer, 1874, Ramphia albizona (Latreille, 1817) and Smyra stipatura (Walker, 1858); in dry forest and dry-rain lowland intergrades.
Male (Fig.
Female. Length: 8–11 mm. As males, differing by the presence of two pairs of proclinate orbital setae and the presence of setae on the hind coxa.
Hyphantrophaga calva sp. n. can be distinguished from all other Hyphantrophaga species by the following combination of traits: thorax with three postsutural dorsocentral setae, two katepisternal setae, hind coxa bare in males, setose in females, median marginal setae present on ST1+2, discal setae only present on T5.
From the Latin adjective “calvus”, meaning "bald", in reference to the lack of hairs on the hind coxa in the males of the species.
Costa Rica, ACG, Alajuela and Guanacaste Provinces, 96–620 m elevation.
Hyphantrophaga calva sp. n. has been reared 13 times from seven species of Lepidoptera in the family Depressariidae, Andasmus Janzen11, Andasmus Janzen25, Andasmus Janzen30, Cerconota Janzen102, Cerconota Janzen707, Chlamydastis christhompsoni (m.s. name), Stenoma aterpes Walsingham, 1913; in rain forest and dry-rain lowland intergrade.