256 On the Hymenoptera of the Genus 



two above and two below these dots, yellow ; a white spot 

 near base of posterior coxae ; pectus and legs bright red ; 

 the four anterior tibite and tarsi, and the intermediate fe- 

 mora, tipped with black ; posterior tarsi, basal half of tibiae, 

 and tips of femora, black ; wings hyaline ; basal edge of 

 stigma and the costa pale. 



^ The male has a yellow spot on each side of the disk 

 of clypeus ; the second and third segments of abdomen 

 are sometimes indistinctly rufous in part; abdomen above 

 covered with a close, fine pile. 



Hab. Farmington, Conn., and Pennsylvania (Dr. Clem- 

 ens). 



Ten specimens examined. 



Sp. 39. A. albomaculatus. Nov. spec. Black ; a white 

 spot on coxae; posterior tibite black. (Long. 0.35 in. to 

 0.37 in. Ex. alar. 0.65 in. to 0.70 in.) 



9 Body black; antennae moderate, first joint covered 

 with short, fine hair ; head and thorax punctured, most 

 coarsely back of the ocelli ; clypeus widely emarginate, 

 with sharp angles; labrum produced, truncate, and fringed 

 with coarse, whitish hair ; disk of clypeus and labrum, 

 base of mandibles, basal joints of palpi, and two dots be- 

 hind scutellum, yellow ; a large spot on posterior coxae 

 above white ; tip of same coxae, trochanters, and basal tip 

 of femora, a line on the four anterior coxae, and the 

 anterior pair of legs beneath, pale yellow ; wings hyaline ; 

 nervures black ; base of stigma pale. 



$ The male has the four apical joints of antennae rufous 

 beneath ; clypeus immaculate, and not deeply emarginate ; 

 a white spot on wing-scale; all the coxae and the four 

 anterior legs pale yellow beneath ; anterior tarsi with 

 black tips. 



Hab. Connecticut and Maine (H. Coll.). 



Four specimens examined. One in the Harris Collec- 

 tion lias the wings dusky at tip, and clypeus not deeply 

 emarginate. 



