372 PROCEEDINGS OF THE ACADEMY OF [Sept., 



contains individuals with the characters supposed to be diagnostic of 

 any of the three forms and numerous others which cannot be placed 

 in one or the other of the three ''species." 



This was one of the most plentiful species encountered. It was 

 found in many of the arid locaUties, but on the prairie it truly swarmed. 

 Each sweep of the net would take a dozen or more specimens in this 

 location, and so great were its numbers that other scarcer specimens, 

 even when seen, would often easily escape in the myriads of this species. 



AULOCAfiA Scudder. 

 Aulocara elliotti (Thomas). 



Gray Cliff, Sweet Grass Co., Montana, Aug. 4, 2 d^, 4 9 . Living- 

 ston, Park Co., Montana, Aug, 4, 1 9 . Electric, Park Co., Montana, 

 Aug. 4, 1 ? . Summit of foothills near Mammoth Hot Springs, Yel- 

 lowstone Park, Aug. 5, 5 c?, 6 ? . Top of Ensign Peak, Salt Lake 

 City, Utah, Aug. 13, 1 9 . Knob Hill, Colorado Springs, Colorado, 

 Aug. 17 and 22, 3 c3^ . Prairie land, Colorado Springs, Aug. 18, 3 ? . 

 Garden of the Gods, Aug. 17, 19 and 23, 11 d", 4 ? . 



The largest series of this species was taken in a meadow of tall grasses 

 and weeds at the western entrance of the Garden of the Gods. It was 

 also taken on the prairie at Colorado Springs, in dry grass and sage 

 at Gray Cliff and in the other localities in hilly sage-brush locations. 

 Aulocara femoratum Scudder. 



Gray Cliff, Sweet Grass Co., Montana, Aug. 4, 1 cd. Garden of the 

 Gods, Colorado, Aug. 17, 19 and 23, 3 9 . 



As stated by Gillette ^^ the females of this species are very similar 

 to the same sex of elliotti, and rather difficult to distinguish. The 

 slenderer caudal femora of femoratum are probably one of the best 

 differential characters. The Montana record is the most northerly 

 for the species. 



The specimen taken in Montana was captm-ed among the dried 

 grasses in prairie land. Had I had more time in this locality I think 

 more specimens could possibly have been taken. In the Garden of 

 the Gods the species was scarce, the only individuals taken being 

 captured in the grass near the western entrance. 



Aulocara parallelum Scudder. 



Hillside at Salt Lake City, Utah, Aug. 13, 2 d", 2 9. Top of 

 Ensign Peak, Salt Lake City, Aug. 13, 1 d^, 1 9 . Antlers, Colorado, 

 Aug. 15, 2 d". 



1° Bull. 94, Colo. Agr. Exp. Sta., p. 30, 1904. 



