346 TIPULID^E. 



248. Pachyrhina concolorithorax, sp. uov. 



<5 $ . Head deep orange-yellow ; antennal scape bright yellow, 

 flagellum wholly black ; proboscis orange-yellow, Jabella and palpi 

 dark brown. Thorax bright orange-yellow, with faint traces of 

 the usual three dorsal stripes and post-sutural spots, barely darker 

 than the ground-colour. Slightly lemon-yellowish at sides below 

 wings ; scutellum and metaiiotum bright orange-yellow, unmarked. 

 Abdomen bright orange-yellow; a black mark on 1st segment; 

 the 2nd orange-yellow, black on posterior border ; the remaining 

 segments dull light yellow, with posterior borders rather broadly 

 black, and with irregular black marks on the yellow parrs ; last 

 segment wholly black. Belly mainly yellowish. Ovipositor 

 shining brownish yellow. Legs : coxa? orange-yellow, femora light 

 brownish yellow, tibiae and tarsi dark brown. Winys nearly clear; 

 stigma dark brown, well marked ; discal cell oblong, nearly twice 

 as long as broad, the two prongs of the upper branch of 4th 

 longitudinal vein issuing separately but close together. Halteres 

 orange, clubs blackish. 



Length 12 millim., without ovipositor. 



Described from a single male from the Khasi Hills, 1000- 

 3000 ft., iii. 07, and a female from Sylhet, 18. i. 04 (Lt.-Col. 

 Hall). 



Types, rf in the Pusa collection, $ in the Indian Museum. 



The uniformly orange thorax at once separates this species from 

 all other Oriental ones. 



249. Pachyrhina consimilis, Brim. 



Pachyrhina consimilis, Brunetti, Rec. Ind. Mus. vi, p. 268 (1911). 



d 5 . Head deep chrome-yellow ; proboscis generally a little 

 lighter, with a wide dark brown stripe on the upperside and 

 dark brown labella ; palpi also dark brown. Back of head at 

 junction Avith thorax with a dark brown triangular mark. An- 

 tennal scape deep yellow, flagellum black, the joints distinctly but 

 only slightly thickened at the base, verticillate hairs short ; some- 

 times in the female the antenna is dark brown, the second joint 

 of the scape being also tinged with brown. Thorax deep chrome- 

 yellow ; the three dorsal stripes deep black, shining, very clear cut ; 

 the median one, which attains the anterior margin, more or less 

 extended downwards along the edge behind the prothorax, on 

 which there is often a brown spot or streak on each side in this 

 vicinity ; the outer dorsal stripes turning sharply down over the 

 sides at their tips, their limits sharply denned ; "the post-sutural 

 elongate spots equally deep shining black and clearly cut. reaching 

 from above the root of the wing to the scutellum. Scutellum 

 light livid brown, sometimes yellowish, with or without a brownish 

 or blackish mark in the centre ; metanotum bright chrome-yellow, 

 with a more or less distinct narrow or moderately wide brownish 



