1912] Frost — Variations of Orsodachna Atra 155 



and the posterior coxae are here Hghter than the abdomen. This 

 approaches trivittata Lac. in color. Length 6 mm. 



One specimen. — ^All testaceous but the metasternum, abdomen, 

 a triangular spot near the middle of the elytra extending part 

 way to the humeral angles, the apex of elytra, and a portion 

 of the suture, which are black. Length 6 mm. 



One specimen. — Similar to the last with the dark areas still 

 further reduced and the abdomen showing a testaceous shade. 

 Prothorax more reddish yellow. This specimen, at first glance, 

 appears to be entirely testaceous. Length 7 mm. 



One specimen. — This has a general fuscous shade with a discal 

 stripe on the elytra lighter. Prothorax reddish. Length 5 mm. 

 Vittatd Say {?). 



In all the above specimens the punctation is about the same; 

 irregularly, coarsely punctate on the prothorax, where the punc- 

 tures are separated by one to four times their own diameter, 

 becoming closer at the sides; they are closer and more regular on 

 the elytra. 



A series taken by me at Fraser, Colorado, July 4, 1911, at an 

 elevation of about 8,000 feet, have the punctation exactly like those 

 from Maine. This series has three specimens of the variety 

 childreni, one near tibialis, and the rest near trivittata. A number 

 of specimens near the last variety were taken on the top of Lookout 

 Mountain near Golden, Colorado, about 7,000 feet. The varia- 

 tions in length are from 4 to 7 mm. 



Another series of five specimens, received from Dr. A. Fenj^es, 

 taken at Ahwahnee, California, in May, have the elytra so closely 

 punctured, especially on the disk, that the punctures are nearly 

 confluent transversely, causing the elytra to appear rugose. All 

 but one of these specimens have the prothorax reddish, the excep- 

 tion having a discal black spot. Three of them have the base of 

 the femora and part of the tibiae and tarsi reddish yellow. In 

 color these appear to be near hepatica Say. They vary in length 

 from 5 to 7.5 mm. 



Through the kindness of my friend, Mr. William M. Mann, I 

 have been able to examine a series of five specimens from "Corte 

 Madera Creek, Cal., III-16-1900," and another of ten specimens 

 from "Pullman, Wash., IV-21-09." 



The California specimens have the normal punctation, like 



