Sinolatindia, Qiu, Lu, Che, Yanli & Wang, Zongqing, 2016

Qiu, Lu, Che, Yanli & Wang, Zongqing, 2016, Sinolatindiapetila gen. n. and sp. n. from China (Blattodea, Corydiidae, Latindiinae), ZooKeys 596, pp. 27-38 : 30-32

Taxon classification Animalia Blattodea Corydiidae

Genus Sinolatindia gen. n.

Sinolatindia 纤蠊属

Type species.

Sinolatindia petila sp. n. 素色纤蠊

Diagnosis.

Male. Small size, form elongate elliptical. Body flat, gracile, pubescent. Head transversely triangular, eyes wide apart, interocular space greater than the distance between antennal sockets, ocelli missing. Pronotum suboval, pubescent. Front femur short and robust, type C1 spination (Fig. 4C), tarsal claws symmetrical, serrated. Tegmina and wings fully developed, right tegmen with wide, hyaline zone, CuA of wings with 2-3 branches. Supra-anal plate symmetrical, transverse, cerci long. Subgenital plate simple, styli similar. Genitalia complex, with a very elongate L3.

This genus is very close to the type genus Latindia Stål, 1860. We have examined the type specimen of Latindia maurella Stål, 1860 (Fig. 2 G–I. Deposited in NRM, the type species of Latindia ) and one Latindia dohrniana Saussure & Zehntner, 1894 (Fig. 2 C–D. Deposited in NRM, determined by Rehn in 1930). Along with the descriptions ( Rehn and Hebard 1927; Rehn 1937, 1951), it was found that Sinolatindia can be distinguished from Latindia by the following characters: 1) pronotum subtransparent, disc without a Y-shaped sulcation (Fig. 2A), whilst in Latindia , pronotum rough, median with a distinct Y-shaped sulcation (Fig. 2C); 2) right tegmen with a hyaline area (Fig. 4G), while not with a hyaline area in Latindia (Rehn & Hebard, 1927); 3) in tegmina, CuA with transverse branches that generally parallel with CuA (Fig. 4 F–G), while branches of CuA are oblique, paralleled to each other in Latindia (Fig. 2L). In addition, Latindia is restricted to north and south America, while Sinolatindia gen. n. is found in East Asia.

This genus may be confused with Homopteroidea , both of which have hyaline part of right tegmen and serrated tarsal claws, and all distributed in Oriental Region. Homopteroidea used to be determined as a member of Latindiidae ( Princis 1963), but Roth (1995a, 2003) treated it as subfamily undetermined. We have examined some Homopteroidea collections that were studied by Roth (all deposited in OUM) and in combination with the description ( Roth 1995a), we found Sinolatindia can be distinguished from Homopteroidea by the following characters: 1) head wide, vertex nearly truncated (Figs 2B, 4A), without ocelli (Fig. 4A), while head long, vertex round, with reduced ocelli (Fig. 2F) in Homopteroidea ; 2) body subtransparent, pubescent, while body horny, smooth and shining, sometimes with a few setae in Homopteroidea ; 3) venation of tegmina and wings not distinct, right tegmen without presutural vein and presutural zone, but with a large transparent part, the boundary between the colored part and transparent part unclear (Fig. 4G), while venation clear with dark coloration, presutural vein present, right tegmen with a hyaline presutural zone (Fig. 2 J–K, except in Homopteroidea aberrans , see Roth 1995a and 1995b) in Homopteroidea ; 4) left phallomere with L3 very elongate, apex curved (Fig. 5 B–C), while L3 short, apex usually like a sickle (Fig. 5 E–F) in Homopteroidea .

Female. Unknown.

Distribution.

China (Yunnan).

Etymology.

This generic epithet comes from the Latin word “Sino” and “Latindia”. “Sino” refers to China, “Latindia” in reference to the genus being similar to the Latin American genus Latindia .

Remarks.

This genus contains all the diagnostic characters of Latindiinae . It also quite resembles Latindia . Both of the genera hold in common the following characters: 1) body small, form elongate elliptical, very flat, pubescent; 2) head transversely triangle, eyes wide apart, ocelli absent (Fig. 2B, D); 3) pronotum suboval, with hind margin truncated (Fig. 2A, C); 4) femur stout; arolia absent; 5) tegmina with irregular network of large cells made by cross veins, Sc without branches, wings with venation slightly reduced, only the first AP (known as axillary in Rehn 1951) branched. Based on Rehn (1951), this genus should belong to tribe Latindiini whose Sc of tegmen is free from R, and M is stalked basally with CuA, thus this tribe current with two genera, viz. Latindia and Sinolatindia .