long's second expedition. 237 



PANURGUS Panz. 



P. 8-MACULATUS — Black ; tergum with four, transverse, yel- 

 low spots on eacli side. 



Inhabits United States. 



% Hypostoma, labrum, mandibles at base, inferior part of the 

 anterior orbits, yellow ; antenna) brown, yellowish beneath and 

 bright yellow on the anterior side of the basal joint ; thorax 

 slightly tinged with brassy, a small yellow point each side on the 

 collar ; pleura with a yellow spot before the wings ', wings slight- 

 ly dusky, pale at base, nervures fuscous ; feet yellow, middle of 

 the thighs and posterior middle of the tibiae blackish ; posterior 

 feet blackish-brown, knees and base of the thighs yellow ; tergum 

 dark brown, four first segments each with a transverse, yellow 

 spot. [351] 



Length more than one-fifth of an inch. 



9 Hypostoma with three, longitudinal, yellow spots, of which 

 the intermediate one is longest; orbits on the anterior inferior 

 portion with a triangular yellow spot; antennao, basal joint entire- 

 ly black : spots of the tergum less elongated than those of the male 

 and the feet have more of the black color. 



Length rather over one-fourth of an inch. 



MEGACHILE Latr. 



1. M. INTERRUPTA. — Thorax surrounded by ferruginous ; ter- 

 gum five banded. 



Inhabits Missouri. 



% Body punctured, above glabrous ; head black ; antennae first 

 joint at base and third and fourth joints dull rufous; hypostoma, 

 broad frontal orbits, and mandibles at base, yellow ; vertex with 

 a ferruginous band, interrupted in the middle and extending 

 down the cheeks ; labrum rufous, a small black spot at base ; 

 thorax black, surrounded by a ferruginous margin, which is in- 

 terrupted before, and passes upon the posterior margin of the 

 scutel ; wings fuliginous ; pleura with cinereous hair beneath the 

 wings ; feet rufous, tarsi with yellow hair ; tergum convex, black, 

 with dilated, obscure, rufous, scarcely definite bands, five in 

 number, on each of which, excepting the basal one, is another 

 yellow band emarginate each side behind, and the three posterior 

 ones are interrupted in the middle; anus trilobated; lobes yel- 



