258 On the Ilymenoptera of the Germs 



black line behind ; tarsi dusky at tips of the joints ; poste- 

 rior thighs black in Ihe middle ; tibia? at base and tip 

 black ; tarsi, first joint black, remaining joints black, white 

 at base." 



Var a. ^9 The A. samhucci of Harris's Catalogue. 

 This has the spot on scutellum wanting, and a short, white 

 line on posterior tibiae above. 



Var. b. 9 This has the scutellum black ; coxsb black, 

 with white tip and a white line on posterior tibiae above, in 

 one case long and in another short. 



It may be remarked, that A. cestvs, A. intermedius, A. 

 mediits, of Harris, and A. epinotus are closely allied, and 

 will require the investigation of a larger number of speci- 

 mens before their names can be definitely settled. 



Sp. 43. A. Jlavicox(B. Nov. spec. Black, with edge of 

 collar, coxae, and legs in part, yellow, (Long. 0.32 in. Ex. 

 alar. 0.65 in.) 



9 Body black ; antennae moderate ; vertex and thorax 

 punctured ; clypeus half inclosing labrura, which is ob- 

 tusely rounded, and fringed with pale hair ; clypeus, 

 labrum, spot at base of mandibles, pale yellow ; palpi yel- 

 low, dark at tip ; wing-scale, edge of collar, and tsvo dots 

 behind scutellum, yellow; pleura immaculate ; legs yel- 

 low ; coxae yellow, basal tips black ; a band in middle of 

 four anterior femora and a slender line on anterior tibiae 

 and tarsi above, apical half of posterior femora, apex and 

 base of tibia^, base of first joint of tarsi, and the nails, 

 black. In some cases, all the tarsi are tipped with black. 

 Wings faintly smoky ; nervures black ; base of stigma 

 pale ; costal nervures distinctly separated. 



Hab. Farmington, Conn., and jNIainc (H. Coll.). 



Sixteen specimens examined. 



Sp. 44. A. incvrtns. Nov. spec. Black, with edge of 

 collar and legs yellow ; j)osterior femora at tip and the 

 tibiffi black. (Long. 0.30 in. Ex. alar. 0.60 in.) 



