NO, 1988. STUDIES OF NORTR AMERICAN WEEVILS— PIERCE. 371 

 MERHYNCHITES BICOLOR BICOLOR Fabricius. 



The typical specimens have elytra, prothorax, and base of head to 

 the eyes red, the remainder of the body black. These specimens 

 usually have the elytral strial punctures quite plainly larger than the 

 interstitial punctures. The front between the eyes is moderately 

 punctate, and rugose near base of beak. Material of this form is at 

 hand from Washington, District of Columbia; Durham, New Hamp- 

 shire; Ogonquit, Maine; Milton and Melrose Highlands, Massachu- 

 setts; Wiimipeg and Aweme, Manitoba; New Jersey; Wisconsin; Iowa 

 City, Sioux City, and Spirit Lake, Iowa; Utah; New Mexico. With 

 two exceptions, then, this form is eastern. 



MERHYNCmTES BICOLOR WICKHAMI Cockerell. 



The commoner form in the collection has the elytra and prothorax 

 only red, and the remainder of the body black. The elytral strial 

 punctures are less easily separable from the interstitial punctures. 

 The front in both sexes is strongly rugosely punctate to the vertex. 

 The material comes from Kaslo, and North Bend, British Columbia; 

 Victoria, Vancouver; Seattle, Yakima, Tacoma, Easton, and Everett, 

 Washington; Fuller, Oregon; Humboldt County, Eureka, Los Angeles, 

 San Diego, San Mateo County, Los Gatos, Dunsmuir, and Kawcali, 

 California; Pocatello, and Fort Sherman, Idaho; American Fork 

 Canon, City Canon, Fort Douglas, and Salt Lake City, Utah; Chey- 

 enne, Wyoming; Havre and Kalispell, Montana; Ouray, Berkeley, 

 Colorado Springs, Breckenridge, and Leadville, Colorado; Williams, 

 Arizona; Santa Fe, New Mexico; University, North Dakota; North 

 Carolina. All the specimens are western except four labeled only 

 "N. C." These may be in error. 



MERHYNCHITES BICOLOR COCKERELLI, new variety. 



This form is red throughout except on the venter of the mesothorax, 

 metathorax, and abdomen, which are black. The sculpture is as in 

 variety wickhami. San Francisco County, California, is chosen as the 

 typical locality. Specimens are at hand also from Los Angeles 

 County, California; Pocatello, Idaho; American Fork Canon, Utah; 

 and Williston, North Dakota. The latter specimens have the basal 

 half of the beak black. 



Type.— Csit. No. 14628, U.S.Nat.Mus. 



MERHYNCHITES BICOLOR VENTRALIS, new variety. 



Two specimens from Volga, South Dakota (Wickham collection), 

 have the beak, antennae, and legs piceous black, ventral parts reddish 

 piceous, head, thorax, and elytra red. 



Type.-Csit. No. 14629, U.S.Nat.Mus. 



