Male (Fig. 1a). Wingspan 23-25 mm. Antennae filiform, brown; head dark brown; thorax, tegulae and legs brownish-yellow; abdomen dorsally brown. Fore-wing ground colour brownish-yellow with dark brown posterior line from near apex to middle of inner margin, near the discal cell with two large dark puncta; cilia whitish-yellow, terminally black. Hind-wing ground colour brownish-yellow, median line indistinct at costa.

a

b

c

d

Figure 1.

Adults of Striglina spp. Scale bar = 5 mm.

a: S. whalleyi sp. nov., holotype male, Yunnan;  
b: S. irresecta obscura Whalley, 1976, male, Xizang;  
c: S. pararubricans sp. nov., holotype male, Guangdong;  
d: S. rubricans Owada et Huang, 2016, paratype male, Guangdong.  

a

b

c

d

Figure 2.

Types of Strigilina taxa.

a: S. irresecta irresecta Whalley, 1976, male, holotype, East Pegu, India, adult dosal view (NHMUK013698289, ©The trustees of NHMUK);  
b: S. irresecta obscura Whalley, 1976, male, holotype, Pedong (Desgodins), India, adult dorsal view (NHMUK013698290, ©The trustees of NHMUK);  
c: S. irresecta irresecta Whalley, 1976, holotype with label (NHMUK013698289, ©The trustees of NHMUK);  
d: S. irresecta obscura Whalley, 1976, holotype with label (NHMUK013698290, ©The trustees of NHMUK).  

Male genitalia (Fig. 3a). Uncus bifid apically, with two shorter processes; two lateral processes apically curved inwards. Subscaphium hairy. Gnathos strip-type with serried tooth. The valvae weak membranous straps; median valval process weak. Sacculus process short sclerotised, enlarged apically. Aedeagus short and broad with a cluster of cornuti.

a

b

c

d

Figure 3.

Male genitalia of Striglina spp.

a: S. whalleyi sp. nov., holotype male, Yunnan;  
b: S. irresecta obscura Whalley, 1976,, Xizang;  
c: S. pararubricans sp. nov., holotype, Guangdong;  
d: S. rubricans Owada et Huang, 2016, paratype, Guangdong.  

Female: unknown.

This new species resembles S. irresecta obscura Whalley, 1976, but the ground colour of wings is yellow (reddish-brown in the latter, Fig. 1a, b), the oblique line from apex to middle of dorsum is straight, dark brown (ochre in the latter). In male genitalia, the uncus is broader, the sacculus process is shorter than S. irresecta obscura, the aedeagus is broader basal (Fig. 3a, b).

The species is dedicated to Mr. Paul Ernest Sutton Whalley, in honour of his marvellous work on Thyrididae.

China: Yunnan (Chuxiong), Guangdong (Shaoguan).

Our study shows that S. irresecta obscura seems more closely related to the new species than to S. irresecta irresecta morphologically and zoogeographically. Judging from the holotype pictures (Fig. 2) from the Natural History Museum (2014), the hind-wing pattern of S. irresecta is also showing the same characteristics.

Male (Fig. 1c). Wingspan 28-30 mm. Antennae filiform, dark brown; head ochrous, labial palpus long, upcurved, ochrous brown; thorax and tegulae covered in ochrous scales; abdomen dorsally dark brown. Fore-wing ground colour whitish ochrous with a broad dark brown striation from apex to middle of hind margin, reticulate pattern prominent. Hind-wing ground colour light brown, wing pattern not as obvious as fore-wing.

Male genitalia (Fig. 3c). Uncus slightly bifid apically, longer with two side processes. Subscaphium hairy. Gnathos strip-type with serried tooth. The valvae weak membranous elongated strips, median valval process hook-shaped, strongly sclerotised. Sacculus process sclerotised, apical part bifid, basal part moderately broader than apical part. Aedeagus short and broad with two clusters of cornuti.

Female: unknown.

This wing pattern of the new species resembles S. rubricans Owada et Huang, 2016, but the fore-wing is narrower and the outer margin is curved (triangular fore-wing in rubricans Fig. 1c, d), posterior line with a large dark brown area, the uncus is thinner and two processes are longer, the median valval process is thinner and more sclerotised, the sacculus process is slender (Fig. 3c, d).

The specific name pararubricans is derived from the other specific name rubricans due to the resemblance of the present new species in morphological characters to the species S. rubricans.

China: Guangdong (Shaoguan).