Allantus in the United States. 249 



Sixteen specimens examined, June, July, and August. 



Sp. 26. A. pircocinctits. Nov. spec. Black ; antennae 

 piceons beneath ; a piceous band on abdomen. (Long. 

 0.52 in. Ex. alar. 0.85 in.) 



9 Dull black ; antennae long, second joint but little 

 longer than third, color black, dark piccous beneath, the 

 first and second joints piceous only at base ; clypeus and 

 labrum, mandibles and trophi, piceous, the former sprinkled 

 with black ; clypeus slightly cmarginate ; labrum retracted, 

 rounded, and fringed with hair ; mandibles black at tip ; 

 scutellum and two dots behind white ; head and thorax 

 finely punctured ; the third, fourth, fifth, and sixth segments 

 of abdomen piceous ; a deep sinus on mesothorax from 

 scutellum to anterior wings ; legs piceous ; all the coxae 

 and the four posterior femora black ; posterior tibiae and 

 tarsi dark above ; wings slightly smoky ; nervures black ; 

 basal half of stigma white. 



Hab. Brooklyn, N. Y., from Mr. Akhurst. 



One specimen examined. It resembles Tenthredo igno- 

 bilis of England in form, but the wings are shorter in pro- 

 portion to the length of body. 



Sp. 27. A. dejectus. Nov. spec. Black ; a piceous 

 band at base of abdomen. (Long. 0.43 in. Ex. alar. 

 0.80 in.) 



$ Dull black ; antennae moderate, rather stout, third 

 joint long ; head and thorax coarsely punctured ; clypeus 

 deeply emarginate ; labrum small ; face black ; labrum at 

 tip and palpi piceous, the latter paler in middle ; thorax 

 dull black, immaculate ; the three basal segments of abdo- 

 men dark piceous, most distinct at sides ; legs black ; the 

 four anterior tibiae beneath and the tarsi dark piceous ; 

 tarsi tipped with black above ; wings faintly clouded ; 

 nervures and stigma black; second submarginal cellule 

 moderately long, and receiving the recurrent nervure nearer 

 the third cellule than usual. 



JOURNAL B. S. N. II. .32 DECEMBER, 18fiO. 



