PACHYHHIITA. 345 



on this latter only a narrow pale yellow median space. The 

 general pattern therefore of the dorsal surface is that of an 

 elongated brown diamond extending from the neck to the end of 

 the metauotum, enclosing an elongate central clear yellow space, 

 down the middle of which runs the narrowed continuation of the 

 median thoracic stripe ; the outer edge of this diamond is clear cut 

 and strongly demarcated from the bright yellow sides of the thorax. 

 In the female the brown colour is not so deep on the scutellum 

 and metanotum", and there is a broad rich brown lateral band on 

 the lower part of the sides of the thorax, reaching from the neck 

 to the metanotum. Abdomen of male yellow at base, the rest 

 blackish, the basal yellow part with a blackish dorsal stripe and a 

 thin lateral black line. In female, practically all blackish, except 

 the 1st segment which is yellowish. Genitalia consisting of a 

 small square black dorsal plate, moderately small dark side plates, 

 the rest of the organs being bright yellow ; the 2nd joint of 

 the claspers very elongated, narrow, finger-like ; apparently 

 some inner organs also. Ovipositor normal, reddish yellow. 

 Legs yellow ; tips of femora rather broadly black or dark brown, 

 the extreme tips (knees) pale ; tibiae and tarsi brown. In the 

 female the apical half of the femora is more or less blackish. 

 Wings rather dark grey ; costal and subcostal cells distinctly 

 yellow or yellowish ; stigma oval, dark brown, conspicuous, with 

 a small clear space on each side of it. There are also small, ill- 

 defined though distinct, clear spaces beyond the middle of the 

 discal cell (adjoining the 5th longitudinal vein), in the 2nd pos- 

 terior cell, at the base of the discal cell and in front of the tip of 

 the 7th longitudinal vein ; a faint trace of suffusion apparent aboufc 

 the central cross-veins and over the 5th longitudinal vein. Hal- 

 teres yellow. The obliterative streak peculiar to Tipula is present. 

 The 2nd posterior cell sometimes shortly petiolate. 



Length, <$ 10 millim., $ 12 millim. 



Described from one male and four females from Darjiling, 

 5-9. viii. 09 (Paivd). 



Types d 1 and $ in the Indian Museum. 



A very marked species, owing to the subrnarrnorate wings, the 

 only one in the genus known to me with this character. The 

 presence, in conjunction with this, of the obliterative streak so 

 peculiar to Tipula, makes it uncertain whether the species would 

 not be better placed in that genus ; but in more than one of the 

 specimens the prongs of the anterior branch of the 4th longi- 

 tudinal vein issue quite separately, and in only one is there a 

 distinct petiole to the 2nd posterior cell, and even in this case a 

 short one. It may, perhaps, temporarily be regarded as inter- 

 mediate between the two genera, the only uncertain Eastern 

 species in this respect that has come before me. 



