fectly accord with each other ; but it must be exceedingly va- 

 riable if Jurine be correct in considering Trypoxylon equestre 

 Fab., Pse?i rufa Panz., and his own P. bicolar, the same 

 species. P. ater is another species found in the vicinity of 

 London upon posts and in sandy places in June and July ; 

 and Mr. Stephens has two others unnamed, which he con- 

 siders distinct. 



Jurine has made two divisions in this Genus : the first con- 

 tains P. ater, with the second submarginal cell receiving the 

 first recurrent nerve only ; the second contains P. equestris, in 

 which the second submarginal cell receives the two recurrent 

 nerves. Not having had an opportunity of examining a male 

 of this Genus, the number of joints in the antennae of that sex 

 is given upon the authority of Jurine. The three lobes men- 

 tioned by LaLreille in his observations upon the Larradce, I 

 could not discover in the lip of the species that 1 dissected ; 

 and he does not mention that organ in his generic description. 

 The females from which the characters and figures are taken 

 are armed with sharp stings, that are not entirely concealed. 



The plant figured is Ranunculus Fie aria (Common Pilewort). 



