BY ROWLAND E. TURNER. 83 



a 6 . Abdomen black. 

 a 7 . Wings dark fuscous, hyaline at the base. 



fenestrates Sm. 167 

 b 7 . Wings fusco-hyaline. morosus Sm. 168 



b 6 . Abdomen barred with yellow. 

 a 7 . Clypeus not depressed. 



a 8 . The yellow bands on the abdomen broad. 

 a 9 . The basal spines of the hypopygium 



prominent vernalis 159 



b g . The basal spines of the hypopygium not 



prominent. anchorites 160 



b 8 . The yellow bands on the abdomen narrow. 

 a 9 . Mesonotum marked with yellow. 



leachiellus Westw. 158 

 b 9 . Mesonotum without yellow marks. 



campanularisSm. 161 

 b 7 . Clypeus depressed. andreanus 187 



b 3 . Median segment more or less rounded. 

 a 4 . Clypeus not very prominent at the base. 



a 5 . Abdomen marked with yellow. vestitus Sm. 157 



b 5 . Abdomen not marked with yellow. 

 a 6 . Hypopygium tridentate; abdomen black. 



a 7 . Clypeus yellow. walkeri 192 



b 7 . Wholly black. nigripes Guer. 194 



6 6 . Hypopygium without basal spines, unidentate; 



the apical abdominal segment red. crudelis 196 



6*, Clypeus very prominent at the base. 



a 5 . Abdomen marked with yellow. simplex Sm. 195 



b 5 . Abdomen wholly black. 

 a 6 . Clypeus black. 



a 7 . Entirely black ; hypopygium without an 



apical spine. atrox 193 



b 7 . Black, the legs ferruginous; hypopygium with 



an apical spine. novarce Sauss. 190 



b G . Clypeus yellow. 

 a 7 . Legs black. carbdnarius Sm. 188 



b 7 . Legs ferruginous. pseustes 191 



b. Sixth ventral segment of the abdomen without a spine at 

 the apical angles. 

 a 2 . Abdomen subconical or elongate. 

 a 3 . Median segment truncate, 

 a*. Abdomen black beneath. 

 a 5 . Abdomen wholly black. 



