126 Records of the Indian Museum. [Vol. IV 



Frontal callus oblong or club- 

 shaped . . . . . . 80. 



Forehead seven to ten times as long 

 as it is broad, narrower anteriorly. 

 Frontal callus long and narrow or 

 oblong . . . . . . 83. 



80. Yellow species. Thorax and scutel- 



lum covered with grey tomentum 

 and yellow pubescence. Legs and 

 antennae yellow. Palpi stout, end- 

 ing in a long fine point. Frontal 

 callus yellowish, often indistinct. . fiaviventris , Bigot. 

 Reddish brown species. Frontal 

 callus reddish brown, always dis- 

 tinct . . . . . . 81. 



81. Thorax and scutellum blackish. 



Palpi slender, long. Antennae 

 black at tip. Legs black, tibiae 

 reddish yellow . . . . diversifrons , n. sp. 



Thorax and scutellum usually red- 

 dish. Palpi stouter. Antennae 

 not black at tip . . . . 82. 



82. Abdomen reddish brown, unicolor- 



ous. Legs reddish yellow, femora 



often darker . . . . subcinerascens , n. sp. 



Abdomen marked with grey tomen- 

 tum, giving it the appearance of 

 having zigzag indistinct bands. 

 Legs blackish, tibiae yellowish . . obconicus, Wlk. 



83. Subcallus not bare, shining or tuber- 



culous . . . . . 84. 



Subcallus bare, shining, tuber- 

 culous . . . . . . 88. 



84. Palpi stout. Femora black or reddish 



brown . . . . . . 85. 



Palpi slender. Femora ^^ellowish . . 87. 



85 ■ Forehead two-thirds narrower anteri- 

 orly than at vertex. Abdomen 

 yellow, anteriorly rather trans- 

 parent. Legs yellowish, fore legs 



darker . . . . , . borniensis, Ricardo. 



Forehead one-third narrower an- 

 teriorly than at vertex. Reddish 

 brown or reddish yellow species . . 86. 



86. Abdomen reddish brown. Thorax 

 blackish. Legs black, tibiae yel- 

 lowish. Wings clear or slightly 

 tinged . . . . . . fuscicauda, Bigot. 



Thorax reddish 3'ellow, almost same 

 colour as abdomen. Legs yellowish, 



