454 ENTOMOLOGICAL NEWS. [May, 



2. Lestes nncatas Kirby. 



Laramie, July 19 ; Medicine Bow, July 20 ; Sheep Creek, 

 Albany Co., Jul}' 23 ; Little Medicine, Carbon Co., July 30. 

 Both sexes taken at all points where the species was observed. 



3. Amphiagrion sancinm Burm. 



Sheep Creek, Albany Co., July 23, taken along a small trib- 

 utarj', 3^19. Laramie, July 19, two 9 . Abdomen S 19, 

 9 19-21 ; hindwdng S 15, 9 15-18 mm. 



These Wyoming specimens have certain differences from the 

 typical form — robustness, darker colors and villose thorax — 

 which are more marked than in any other individuals exam- 

 ined, even from Montana and Washington. The form of the 

 male appendages will not serv^e to separate them ; a female 

 from Wa.shington is indistinguishable from a Wyoming speci- 

 men. Judging from my material the variation seems to run 

 from the typical Eastern saucium to specimens from Washing- 

 ton, then Montana, and finally the Wyoming forms. These 

 last agree so well with Pyrrhosoma abbreviatiim Selys, that 

 his yiame must be considered a syno7iym of saucium.'^ 



4. Enallagma annexam Hagen. (PI. IX, figs. 3, 7). 



Medicine Bow, July 20 ; Sheep Creek, Albany Co., July 23 

 and August 6. 



When these notes were prepared I had not separated this 

 species from the next, including both under the name calverti. 

 I have since been able to distinguish the two by the aid of a 

 drawing of the abdominal appendages of the male in profile of 

 each species, which Dr. Calvert .sent me, together with a speci- 

 men of each species, annexum from Seattle, Washington, June 

 14, 1894, and calverti from Olympia, Washington, July 9, 1893. 

 When sending this material Dr. Calvert raised the question of 

 the distinctness of annex it m and calverti. So far as the Wyom- 

 ing material goes there seem to be no intermediate forms. A 

 single male of annexum from Pasadena, California, July 7, 

 1899, does not differ from Wyoming siK-cimens of the same 

 .species. Between the two .species no color differences are 



* I have ttudicd tome of these Wyoming ipeclmeni, •• well as those from Montana, 

 Washini(ton, and also Colorado, and hold the same opinion as to the specific identity of 

 alibrtvialum and taueium.—P. I'. Calvert. 



