212 S. FRANK AARON. 



on the inside, and the color is probably less blue, with a little stronger 

 golden reflection. I feel very positive that this specimen, together with 

 a series to show the variations, .will prove identical with Patton's aliena. 



Cleptes Provanclieri Aaron. C/eptes americana (name preoccupied) 

 Provancher. Nat. Can. xii, 304, July, 1881. 



Before me are seven specimens % $ from Canada (two specimens, one 

 of which is Provancher's type), Colorado and Washington Territory 5-6 

 mm. long. 



The color is emerald-green on the head and thorax with or without 

 bluish reflections ; abdomen blackish shining, with green reflections on 

 the margins. Wings subhyaline, tibia with some greenish reflections 

 outwardly ; otherwise, and with the tarsi, varying from luteous to fuscous. 

 Almost necessarily M. Provancher's americana must fall, Mr. Cresson 

 having used that name in 1879. 



Cleptes insperata. n. sp. — Emerald-green, with more or less slight blue 

 and purple reflections, rather sparsely and evenly punctured. Wings subhyaline 

 on the centre, in places infuraated. Tarsi luteous, rest of legs largely green out- 

 wardly ; 6-6.5 mm. long. 9- 



Montana, four specimens ; between purpurata and aliena. 



Cleptes speciosa n. sp. — Elegantly colored with ruby, golden and green, 

 the metanotum emerald-green with a slight bluish reflection, evenly and sparsely 

 punctured, smoothest on the seutellura; abdomen black, shining on the disc, with 

 the metallic reflections broadly on the sides and the whole of the fourth segment; 

 wings subhyaline, or infumated ; femora metallic (the anterior pair purplish in 

 one specimen), tibia and tarsi luteous, fuscous at base and apex in one specimen : 

 first joint of antennae with purplish reflection ; 5 mm. long. J . 



Montana, two specimens. An elegant and very distinct species. 



Sub-family— ELAMPIN^. 



Tarsal claw with 2-6 distinct teeth between the base and apex. 



The apical margin of the third abdominal segment is simply notched, rounded, 



not produced as seen laterally Oinalus. 



The apical margins of the third abdominal segment pinched on each side of 

 the notch or emargination, forming, as viewed laterally, a snout-like pro- 

 jection that appears truncated. 

 The emargination or notch of the apex open, not filled up with a membrane. 

 The surface of the third segment above the apical snout-like projection 



even, not produced Elampiis. 



The surface of the third segment just above the snout-like projection pro- 

 duced into a cone shaped piece forming the direct apex of a fold which 

 extends on each side just above the apical and lateral margins. 



l>ipIorrhos. 

 The emargination or notch of the apex closed, or partly filled up by a mem- 

 brane, which is excised beneath Notozns. 



