234 



Thyndates Navås, Mem. Barcel, p. 412, 1Q08. 

 Diplostigma Navås, ibid., p. 413, 1908. 

 tiaplodlctyiis Navås ibid., p. 413, 1Q08. 



A. Eurasiatic Species. 



1. B. italicus O. F. Müller, Man. Ins. Taur. ed. AUioni, 



p. 194, 1766 (Panorpa) — tipulanaFahncms, Syst. 

 Ent., p. 314, 1775 (Panorpa) — tipuloides Schrank, 

 Beitr. Naturg., p. 82, 1776. 



2. B. hageni Brauer, Abh. z.-b. Ges. Wien, p. 691, 



1860. 



3. B. indiciis Walker, Cat. Neur. Brit. Mus., p. 469, 1853. 



4. B. insularis n. sp. 



Head brown; rostrum pitchy brown towards the 

 tip; vertex black between the ocelli. Antennae 

 slender, dark brown; basal joint subcylindrical, glo- 

 bular, both very stout. Prothorax pitchy brown, 

 meso- and metathorax reddish brown. Abdomen 

 brown. Legs slender, brown; femora, tibiae and 

 tarsal joints with blackish tip. Wings narrow, slen- 

 der, with rounded tips and with pale greyish brown 

 tinge; apical margin shaded with pale sooty brown. 

 Nervures brown. No apical cross vein in costal 

 area. Subcostal crossvein in forewing half way be- 

 tween origin of radial sector and its fork, in hind- 

 wing nearest to the origin. Fork of radial sector 

 opposite to fork of media. Cubital crossvein (i. e. 

 that between the cubital branches) a little beyond 

 fork of media. No crossvein between Cu^ and lA; 

 the latter joins the hind margin far before fork of 

 media and a little beyond origin of radial sector. 

 Pterostigma subrectangular, connected with radial 

 sector by two crossveins. A few bristles on hind 

 margin of wings near base. 



Forewing 15 mm; hindwing 18 mm. 



Brit. Mus.; 1 9 Ceylon, 29. XI 1908. 



