1G8 THE CANADIA.N ENTOMOLOGIST. 



nrtiae., Kalt., seems to resemble our insect as mucli as anything, but it is 



not the same. 



Nectarophora agrimoHiella, sp. n. 



Bab.—Bt\x\a^^, N. M., July 27, 1902 {W. P. and T. D. A. Cockerell). 

 Very abundant on Agrimonia etipatoria, Auctt., inhabiting the flower- 

 stalks. 



Winged ^ (full of young) — Large, light apple green (orange-ferrugi- 

 nous mounted in balsam), without markings ; eyes black ; femora with 

 basal two-thirds light green, distal third black, or sometimes less (about 

 90 /J.) ; distal 90 /x of tibiae, and all of tarsi, black ; nectaries suffused with 

 blackish; antennae dusky, joint 3 black except the basal 30 /x ; third 

 antennal joint with very numerous (about 32) protuberant sensoria, about 

 equally distributed on the proximal and distal halves ; cauda tapering, 

 with a blunt tip, sides with bristles set on little prominences ; no capitate 

 hairs anywhere. 



Length of body about 3 mm., wings about 3^ mm. ; other measure- 

 ments in /x : — Antennal joints: (i.) 120, (2.) no, (3.) iioo, (4.) 900, 

 (5.) 730, (6a.) 160, (6b.) 1230. Cauda about 450; nectaries 1000, with 

 imbricated surface ; beak 700 to 750 ; anterior femur 1000; marginal 

 cell with substigmatic portion 380, and poststigmatic portion 660. 



Allied to JV. erigeronetisis (Thos.), which it resembles in the numer- 

 ous sensoria on joint 3. 

 Nectarophora rudbeckiartim, sp. n. 



Hab. — -Beulah, N. M., July 26, 1902, on Rudbeckki ampla, with 

 N. rudbeckicE, but not nearly so numerous. 



JVinged ? . — Light green ; eyes, ends of tibiae, and tarsi, black. 

 Length of body about 2j^ mm., of wings about 4^ mm. Measurements 

 in jL : Nectaries 1200 ; cauda about 600, breadth at base 120, in middle 

 170; beak about 750; anterior femur 1500; antennal joints, (3.) 1200, 

 (4.) 1250,(5.) 1070; marginal cell with substigmatal portion 420, post- 

 stigmatal 500. Apterous ? about 4 mm. long, including cauda. This 

 cannot be a green variety of N. rudbeckice, for the following reasons : 



(i.) N". rudbeckice has much shorter nectaries, not over 850 /x. 



(2.) N. rudbeckice has a longer marginal cell, with substigmatal 

 portion 550, poststigmatal 700 /x. 



N. rudbeckiarum differs as follows from N. agrimoniella; 



(i.) The third antennal joint is not nearly so dark, and has only 

 about ten hardly protuberant sensoria, which are practically confined to 

 the basal half of the joint. 



