THE ENTOMOLOGIST. 



29 



species which now represent the genera Lygocerus and 

 Trichostoresis, and the type of the latter is Cenaphron 

 clandestinus, Nees (= glaber, Boh.). 



A. 

 B. 



a. 



b. 



ft 



X 

 X 







— K 

 -T H 



00 



§§ 



X 

 X X 





 00 



DlAPKlD^E. 



Wings notcbed at the tips. - 



Wings not notched at the tips. 



First joint of the antenna) very much dilated. 



Fkst joint of the antenna; not very much 



dilated. 

 Front much elongated. First joint of the 



antenna) distorted in the middle. - 

 Front not much elongated. First joint of the 



antennne not distorted. 

 Subcostal vein not extending to the costa. 

 Subcostal vein with a stigmatic branch at the 



tip. ..... 



Subcostal vein with no stigmatic branch at 



the tip. - - - - 



Subcostal vein extending to the costa. 



Male. 

 Antennae 12-jointed. 



Antennae with thirteen or fourteen joints. 

 Antennae with thirteen joints. 

 First joint of the flagellum hardly half as 



long as the second. 

 First joint of the flagellum as long as the 



second or longer. 

 Second abdominal segment with one or more 



grooves at the base. 

 Wings with a costal vein. 

 Wings with no costal vein. - 

 Second abdominal segment with no groove at 



the base. - - - . . 



Antenna) 14-jointcd. 

 Wings with no basal vein. - 

 Wings with a basal vein. 

 First joint of the flagellum distinctly shorter 



than the second. - - . - 



First joint of the flagellum not distinctly 



shorter than the second. - 



Entomacis. 



PLAXyMISClIUS. 



Galesus. 



Aneurhynchus. 

 Labolips, fem. 



Cephalonomia. 

 Paeamesius. 



Idiottpa. 

 Hemilexis. 



SriLOiiicRus. 



DiAPRIA. 



Basalts. 



loxoteopa. 



Antennae 12-jointed. 

 Head large and flat. 



Female. 



- Cephalonomia. 



