134 Mr. Cameron on 



received not far from the base of the cellule, and are almost 

 united. There is a short black line on the top of the middle 

 femora ; the posterior femora are entirely lined with black 

 above ; the hinder tibiae are infuscated behind ; the coxae 

 black at the base ; the femoral spine is a mere thickening 

 as in P. ritsemce. 



May be known from P. ritsenics by there being only a 

 fascia in the wings below the stigma, the entire apex not 

 being infuscated ; by the antennal being entirely red ; the 

 mesothorax black, &c.; from P. fasciatiipmnis it differs in 

 being larger; in having the antennae entirely red; in having the 

 mesonotum broadly red in front ; in the mesopleurae not being 

 entirely black, it being red at base and apex and under the 

 wings ; in the metanotum being only black in the middle^ 

 the apex too being red ; in the second abdominal segment 

 being red at the base ; the pygidial area is entirely red and 

 much more strongly punctured ; the metathorax can hardly 

 be said to be transversely striated ; the wings are not so 

 clearly hyaline, having a fuscous tinge, especially behind 

 the stigma, and the cloud is much more distinct and wider. 

 There is of course, also, the difference in the form of the 

 clypeus and of the femoral spine, but these are doubtless 

 sexual differences which cannot be compared in the absence 

 of the $ of riificornis and the ? of jasciatiipennis. 



Hab. Poona ( Wroiightoii). 

 3. P. fasciatiipeimis. Cameron, Mem. Lit. and Phil. Soc, 

 Man. II. (4) 16. 



Hab. Ceylon. 



TACHYTES. 



Tacky tes, Panzer, Krit. Revis. II., 129 ; Kohl, VerJi. z.-b. 

 Ges. Wien, 1884, 327. 



Like Larra this has been split up into three genera, and 

 the same difficulty is experienced in elucidating Smith's 

 species. 



