1914.] 151 



' black ' respectively, but in Vol. IV they are said to be ' pale or white.' 

 The earlier statement was evidently a mere error. Konow's parvula 



is probably a variety of the same species) flavomaculata, C. 



= picticeps, C. 



6. Hind femora red. (Perhaps this also is a variety of the last species) ... 



elegans, Knw. 



— Hind femora black 7. 



7. Mesonotum (inner corner of its middle lobes marked with two little white 



flecks .fenestrata, Knw. 



— Mesonotum immaculate 8. 



8. Abdomen very dark ; the red on its dorsal surface reduced to mere lateral 



spots or obscure narrow streaks or even absent altogether 9. 



— Abdomen clearly and conspiciiously belted with red 12. 



9. Propodeum with a broad yellow margin as in austriaca, of which it may 



be possibly a melanic form. It is a rather large insect, and the con- 

 trast between its dark abdomen and the copious pictura albida of its 

 head and thorax give it a very striking appearance. (This is the 

 tristis of Bi'itish authors— Stephens, Cameron, and Kirby — but not of 

 Fabricius, and as that name is accordingly unavailable, I suggest 



tristior to replace it) tristior, n.n. 



( = tristis, Steph. etc.). 

 nee F. 



— Propodeum entirely black 10. 



10 A rather large and obsctirely coloured form with pictura albida reduced 

 to a minimum ; thorax with only the scutellum, etc., white. Dorsum 

 of abdomen entirely black, only its sides dull brownish-red. 

 tenipora seem to be entirely fulvous-brown, and there are indie 

 of the same colour on the lateral lobes of the mesonotum. 



The only example I have seen of this is Cameron's type of 

 viceps." I feel quite sure that it has nothing to do with Stephens' 

 fulviceps, which = palmata, Geoff r. (scutellaris, C), but what it is I 

 cannot say, and on a single specimen I do not care to propose a new 



name for it sp. ? 



(= fulviceps, C, nee Steph.). 



— Smaller, head not brown 11. 



11. 2nd recurrent n. normally interstitial, edges of pronotum more or less 



pale. Hind tibise red spreta, Lep. 



— 2nd recurrent n. not interstitial, edges of pronotum black. Hind legs 



very dark ; rufescence of tibia? obscure ; hind tarsi black, with some of 

 the intermediate joints sordidly white thornleyi, Knw. 



12. Red of abdomen extending over four or five segments and generally 



immaculate. Pictura albida very little developed ; even the clypeus is 

 seldom entirely white (it may even be black altogether !), and on the 



