NO. 1988. STUDIES OF NORTH AMERICAN WEEVILS— PIERCE. 885 



MELAMOMPHUS LUTEUS Horn. 

 Thricoviigus lutcus Hori;. 



The material before the writer which most nearly answers the de- 

 scription of this species is the female series from Prosser, Washington. 

 The males and females of this series collected April 1, 1910, and trans- 

 mitted by Mr. M. A. Yothers, belong in different genera according to 

 Horn's table. The writer has selected this series to stand for Horn's 

 species because the females lack a posterior tibial mucro and have 

 the first abdominal suture somewhat arcuate. Specimens are also at 

 hand from Mission, Washington, May 5, 1911. 



MELAMOMPHUS TESSELATUS Casey. 

 Amnesia tessellata Casey. 

 No specimens are at hand. 



MELAMOMPHUS RAUCUS aorn. 

 Amnesia rauca Horn. 



Material of this species is at hand from San Francisco County and 

 Alameda County, California, and Victoria, Vancouver Island. . 



MELAMOMPHUS ALTERNATUS Horn. 



Amnesia alternata Horn. 



This species is to all appearances the same as luteus, but differs only 

 by the denticulation of the tibiae. The material at hand is from 

 Helena, Montana, and Siskiyou County, California. 



MELAMOMPHUS GRANULATUS Casey. 



Amnesia granulata Casey. 



The specimen from Siskiyou Count}^, California, just mentioned, 

 may possibly be this. 



MELAMOMPHUS CILLATUS, new species. 



Described from a single specimen taken among cones of Cupressus 

 macrocarpa in Monterey County, California, February 8, 1904, by 

 Coleman. 



Length 8 mm. ; width 3 mm. 



Body piceous black, covered with coppery scales, and with long, fine 

 pubescence; appendages lighter in color. 



Head and beak roughly rugulosely punctate ; beak longer than head 

 and separated from it by a broad transverse depression, dilated at 

 ala;; scaly vestiture sparse, especially on beak; pilosity sparse but 

 long. Nasal plate depressed, glabrous, crescent-shape. Genre trun- 

 cate. Scrobes subterminal, deep, and well defined, but rapidly eva- 

 nescent posteriorly. Scape reaching beyond middle of eyes; first two 

 funicular joints elongate subequal, remaining joints diminishing in 

 80459°— Proc.N.M.vol.45— 13 25 



