THE CANADIAN ENTOMOLOGIST. _ 83 
Posterior femora simple, 
Body entirely black. 
Legs entirely honey-yellow or ferruginous. 
Wings hyaline; first abdominal segment narrow, 
SUMMING? Socoodsodes 660d006 nets lo ns 5. AMERICANUS. 
Wings fuliginous ; first abdominal segment broad, 
GOACGMOccoodesasoodoncancoone 0006 00001010 6. FULVIPES. 
Legs ferruginous, posterior femora, tibiæ and tarsi black.7. PEDALIS. 
& 5 5] 
I. HELCON OCCIDENTALIS. 
elcon occidentalis, Cress., Proc. Ent. Soc., iv, p. 292. y 
d ? ? a 
Colorado. 
2. HLELCON BOREALIS. JV. Sp. 
g .—Black, opaque ; clothed with a short thin pale pubescence ; top 
of head, cheeks and space on side of pleura smooth and shining, face 
finely and densely punctured; antennæ long, slender, brown; thorax 
densely, rather roughly sculptured, somewhat coriaceous ; metathorax 
densely and coarsely sculptured ; tegule dull honey-yellow ; wings hya- 
line, iridescent, nervures and stigma fuscous ; legs bright honey-yellow, 
anterior coxæ tinged with fuscous, posterior tibiæ black, reddish at base, 
their tarsi pale yellow, dusky at tips, femoral tooth strong and blunt; 
abdomen depressed, first segment coriaceous, second and third segments 
honey-yellow. Length .33 inch. 
Maine. 
3. HELCON ALBITARSIS. JV. sp. 
Ÿ .—Head, pro and mesothorax, scutellum and sometimes the pleura 
entirely black ; remainder honey-yellow or ferruginous; sometimes the 
pleura is entirely ferruginous, and sometimes the metathorax is obscurely 
ferruginous, nearly brown; antennæ black or brown; head and thorax 
sculptured as in dorealis, the metathorax being more distinctly reticulated ; 
tegulæ honey-yellow ; wings hyaline, iridescent, nervures and stigma fus- 
cous ; legs bright honey-yellow, posterior tibize black, reddish at base, all 
the tarsi white, dusky at tips, femoral tooth acute; abdomen narrow, 
shining, first and second segments reticulated ; apical segments sometimes 
tinged with dusky. Length .27—.35 inch. 
