300 ENTOMOLOGICAL NEWS. [July, *o8 



posterior portion of metathorax somewhat roughened. Abdomen 

 smooth, almost impunctate excepting apically and ventrally, where 

 rather strong punctures are to be found, but the disks of these segments 

 are practically impunctate ; last ventral segment with a longitudinal 

 keel or carina; dorsal surface of pygidium with large coarse punctures, 

 the intervening spaces with minute ones. 



Coloration : Ground color of insect black, the following areas deep 

 yellow : Mandibles except tips, clypeus, face below and between 

 antennae, inner orbits rather widely up to level of anterior ocellus, 

 scape and pedicellum beneath (flagellum missing), collar above pos- 

 terior portion of tubercles, part of tegulse, a median spot on scutellum 

 and postscutellum, a large ovate spot on each side of the third abdom- 

 inal segment, a small lateral spot on four, a rathec wide band on five 

 narrowed laterally. The legs are colored as follows ^ Anterior coxae, 

 trochanters, femora and tibiae in front, and tarsi, yelloV ; intermediate 

 coxae and trochanters with a yellow dot, femora and tibiae in front, 

 yellow, tarsi rather darker; hind legs entirely brownish. Wings 

 hyaline, iridescent, nervures dark brown. 



Type A female taken at Beaver, Indiana on August 17, 

 1894. I take pleasure in dedicating this species to Prof. Robt. 

 H. Wolcott, M.D., collector and donor of the specimen, who 

 has added many valuable insects to the University collection. 



The second abdominal segment has two or three tiny yellow 

 spots showing through. Other specimens of the species are 

 quite likely to have these spots more strongly developed, or en- 

 tirely absent. 



In order that students may have no difficulty in placing this 

 species, the following modification of the latter portion of Fox's 

 synopsis (Entomological News, V, p. 201, 1894) is submitted. 



4. Clypeus, except fore margin in male, metathorax, petiole and second 



abdominal segment, without yellow markings ; third abdomi- 

 nal segment with a yellow mark on each side ; in the male the 

 scape and first two joints of the flagellum beneath, yellow. 



bimaculatns. 

 Clypeus entirely yellow (male unknown) 5. 



5. Two marks on basal portion of metathorax, basal half of first abdomi- 



nal segment and maculations on second and third segments of 

 abdomen, yellow (remaining segments without yellow) 



alpestris. 



Metathorax and first abdominal segment without yellow maculations ; 

 segment four with a small lateral yellow spot, segment five 

 with a continuous laterally narrowed band wol cotti 



