166 THE ENTOMOLOGIST. 



extending to the base of the elytra, entirely fulvous, the terminal joints 

 strongly transversely dilated and flattened ; thorax twice as broad as 

 long, the sides straight at the base, rounded anteriorly, the angles not 

 produced, the middle of the disc finely and rather closely punctured, 

 greenish black, this colour in shape of a broad transverse band which 

 has the sides deeply concave, the latter bright flavous, nearly im- 

 punctate ; elytra finely punctate-striate, the suture, a narrow stripe 

 on the shoulders, the lateral margins and epipleurre at the posterior 

 half, and a spot below the middle near the sides greenish black. 



Hab. Brasils. Oxford Museum collection and my own. 



This variety, of which two specimens are before me, agrees in 

 every particular with the typical form, except that the transverse 

 narrow elytral band of the latter is here absent and replaced by 

 a small round spot, which at first sight might suggest the specific 

 distinction of the species ; and as two exactly similar specimens 

 are before me, I thought the variety deserving of another name, 

 no other instance having ever come under my observation in 

 regard to this species, the variety of which seems to be ex- 

 tremely rare. 



Deuterocampta sedula, Stal. 



This insect I believe to be only a variety of D. pustulicoUis, 

 Stii), in which the narrow elytral stripes have disappeared ; there 

 is no differenco in any other respect between the two insects. 



SYNOPSIS OF THE NORTH AMERICAN BEES OF THE 

 GENUS STELI8. 



By T. D. A. Cockekell, N. M. Agr. Exp. Sta. 



The North American species of Stclis may be separated as 

 follows : — 



More or less blue or green ..... 1. 



Black, not at all blue or green .... 3. 



1. Second recurrent nervure ending a little beyond 



tip of second submarginal cell ; olive-green 



species. (Colo.) ...... montana, Cress. 



Second recurrent nervure ending a little before 

 tip of second submarginal cell ; dark blue or 

 blue-black species ..... 2. 



2. Length about 8 mm. ; thorax strongly and 



sparsely punctured. (Calif.) . . . subccerulea, Cress. 



Length about 6 mm. ; thorax closely punctured. 



(Colo.) ....... elegans, Cress. 



3. Length about 10 mm. ; markings red. (Ga.) . australis, Cress. 

 Markings yellow ...... 4. 



Markings white or yellowish white ... 5. 



