CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 579 



Scutellum: Length-width ratio, 2.70(2.53-2.86) :2.44(2.34-2. 60). 



Length of bod}^: 7.70(7.37-8.25). 



Type data. — The types (USNM) were collected "near Fort Cobb, 

 Indian Territory, by Dr. George H. Horn, and near San Diego, Cal., 

 by William Holden." 



Specimens studied. — 37 males, 41 females. 



United States: Arizona: Buckeye, Douglas, Flagstaff, Grand Canyon (south 

 rim. Roaring Springs), Huachuca Mts., Oracle, Palmerlee, Pepper Sauce Can- 

 yon (Santa Catalina Mts.), Pinal Mts. (base), Ramah, Roosevelt Lake, San 

 Carlos Lake; March to August. California: Claremont, Laguna Beach, Los 

 Angeles Co., Mohave, San Diego, Santa Paula; May to July. Colorado: Boulder, 

 Fort Collins; April. Idaho: Coeur d'Alene Lake, Lewiston; May, July. New 

 Mexico: Jemez: April, June, August. Oklahoma: Kenton; July. Oregon: The 

 Dalles, Malheur Co., Monroe, Ochocho Dam; June, September. Pennsylvania: 

 Philadelphia; May (see discussion concerning this specimen). Texas: No exact 

 locality. Utah: Salt Lake City; July. Washington: Asotin, Pullman, Walla 

 Walla, Wawawai; May to October. 



Discussion. — The original combination of names of this species 

 has been the most abused of all the names in the family in the Western 

 Hemisphere. It has been found affixed to no less than five species in 

 three genera. What has been the real cause of this confusion is not 

 apparent. True, Uhler's assigning it to Pangaeus w^as misleading, 

 but the original description is complete enough to preclude many of 

 the assignments that have been made. It is hoped that the present 

 treatment will correct and simplify the determination of specimens 

 of this species. 



The relation of this species to Dallasiellus puncticoria, new species, 

 is not yet clear to the author. D. puncticoria, new species, appears to 

 share the southern half of California with discrepans and then range 

 southward into Baja California. Unfortunately, the latter territory 

 is represented by a single pair of rather atypical specimens which are 

 somewhat suggestive of discrepans in having fewer mesocorial punc- 

 tures than do most specimens of puncticoria from California proper. 

 A goodly series of puncticoria, some 54 specimens, was at hand from 

 Sequoia National Park, Calif.; this series, with one or two exceptions, 

 was easily separated from discrepans by abundant mesocorial punc- 

 tures. The few exceptions were quite similar to the two from Baja 

 California and suggested that these forms belonged together. Per- 

 haps when more intensive collecting is done with this problem in 

 mind, puncticoria will be found to be but a localized variant of dis- 

 crepans and so deserve no more than subspecific status. Unfortu- 

 nately, the internal male genitaUa of these two species and vanduzeei 

 are all very similar and offer no help in the problem — unless one wishes 

 to accept them as evidence that the present treatment is sunply an 

 unnecessary splitting of what is but one species. 



