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1909.] NATURAL SCIENCES OF PHILADELPHIA. 453 



This series includes individuals representing a number of color 

 variations , both in pattern and tone, and also exhibiting great diversity 

 in size. The measurements of certain specimens are here given: 



Length of Length of 



body. tegmen. 



Santa Catalina Island, 21 mm. 22 mm. 



Miramar, 21 " 23.3 



Pasadena, 24.2 " 26.7 



9 



Santa Catalina Island, 28.5 " 29.5 



Miramar, 30.5 " 32.5 



Pasadena, 30 " 35 



The Santa Catalina series is as a whole distinctly smaller than any 

 of the other comparable lots, considerable individual variation being 

 noted, the measured specimens, however, being average ones. The 

 specimens from the coast of the adjacent mainland, i.e., Miramar 

 and Alamitos Bay, are but little larger than the Catalina individuals, 

 although there is also a considerable amount of individual difference, 

 while the majority of the Pasadena representatives are considerably 

 larger than any others in the series before us. 



As a rule the Catalina, Miramar and Pasadena individuals are duller 

 than specimens from the San Bernardino Mountains, Cima, Indio, 

 Providence and Bird Spring Mountains and Las Vegas. The single 

 Arden specimen has the cephalic portion of the body and limbs well 

 sprinkled and partially washed with pinkish-red. 

 Trimerotropis vinculata form similis Scudder. 



This form has rightly been reduced in rank to a variation of vincu- 

 lata by Caudell, 14 and from material before us it appears to have an 

 extensive range. 



Two males were taken on Santa Catalina Island, August 3, and a 

 single female at Miramar, July 31 . Specimens have also been examined 

 from San Diego and Claremont, California, Albuquerque, New Mexico 

 (Oslar), and El Paso, Texas (Viereck and Rehn). 



Trimerotropis fallax Saussure. 



We have before us a series of thirty-two individuals of this peculiar 

 species. The following localities are represented: Yosemite Valley, 

 4,000 to 5,400 feet, September 1, four males, four females; Sentinel, 

 Yosemite National Park, September 1, one male; Eight-Mile Camp, 

 Yosemite National Park, September 1, three females; Grouse Creek, 



14 Proc. U. S. Nat. Mus., XXXIV, p. 76. 



