342 Trans. Acad. Sci. of St. Louis. 



collar, tubercles, tegulae, line above, two lines on mesonotum 

 before scutellum, a tubercle on each side before scutellum^ 

 the latter and postscutellum, and abdomen beneath rufo- or 

 fulvo-ferruginous; mandibles simple, fourth joint of antennae 

 nearly one-third longer than third or fifth, tegulae strongly 

 punctured, scutellum bilobed ; wings fuliginous, nervures 

 fuscous, stigma ferruginous: abdomen very broad, depressed, 

 basal half of first segment black with a yellow or ferruginous 

 band beyond, finely and sparsely punctured at base, the punc- 

 tures coarse and close at apical margin; second segment 

 densely punctured, except on the sides, where it is more 

 sparsely punctured and gibbous owing to the strongly de- 

 pressed apical margin, yellow except a narrow line on disc and 

 the apical margin, the latter as well as margins of two follow- 

 ing segments somewhat reflexed ; segments three and four with 

 a yellow spot on each side, the fifth with a broad cross band, 

 beneath the abdomen is very strongly, coarsely and densely 

 punctured, the second and third segments reflexed. Length 

 10 mm. 



Carlinville, Illinois; one 5 specimen. 



This is a cyanide specimen, which I have kept for nine years 

 in hopes of finding other examples. Some of the yellow orna- 

 ments have turned red. The spots on abdomen are yellow,, 

 and I think the sides of face and collar were originally so. In 

 the strong punctuation of abdomen it differs remarkably from 

 any Nomada I have seen. 



Epeolus Latr. 

 Epeolus lunatus Say. 



Epeolus lunatus Say, Long's 2nd Exped. II, 3o4, 9 (non d')> 182-t, Lec> 

 Edit. I, 240. 



Epeolus lunatus Cresson, Proc. Ent. Soc. Phil. II, 394, J* 9, 1864. 



I have 32 5, 28 $ specimens. As a rule both sexes have 

 the three basal joints of antennae, labrum, base of mandibles, 

 tegulae and legs black, as in 23 $ and 18 5 specimens. Less 

 frequently these parts are more or less rufous, as in 5 ^j and 

 14 5 specimens. Say described the red-legged female and the 

 male of £. concavus, which has black legs. Cresson 

 described red-legged females and black-legged males. My 



