24 PBOCEEDINGS OF THE NATIONAL MUSEUM vol. 82 



Distribution. — Washington (San Gabriel, Wawawai) ; Oregon 

 (Corvalis, Freewater) ; California (Bartlett Springs, Camp Gree- 

 ley, Castle Crag, Colton, Contra Costa, Dunsmuir, Fresno County, 

 Garden Grove, Hayfork, Isabella, Kaweah, Los Alamitos, Los Ange- 

 les, Orange County, Pasadena, Paso Robles, Riverside, Santa Ana 

 River, San Bernardino, San Diego, San Joaquin River, San Jose, 

 Santa Monica, Sacramento, Sierra Nevada, Tulare County, Woyden, 

 Yreka) ; Wyoming (Yellowstone National Park) ; British Colum- 

 bia (Conford). 



Food plant. — Salix. 



Remarks. — The type of Haltica functicoUis LeConte is without 

 doubt the specimen in the LeConte collection bearing the name and 

 a gilt label indicating that it was collected in California. It fits 

 LeConte's description, even to the dark coloring in the middle of the 

 metasternum at the base (this coloring is more or less variable, but 

 the entire metasternum is not dark in any specimen examined). 

 Unfortunately, the name 'puncticollis has been previously used by 

 Kirby in describing his Haltica puncticollis, which is now regarded 

 as a synonym of D. triangularis (Say), and this has necessitated 

 changing LeConte's very applicable specific name. In describing 

 D. latiovittata, Hatch suggested that it might be identical with 

 jruncticollis, but that in any case the latter name was preoccupied. 

 Specimens in the United States National Museum agreeing with his 

 description and from Wawawai, Wash., one of the localities men- 

 tioned by Hatch in citing paratype specimens, have been compared 

 by the writer with the type of D. puncticollis (LeConte) and found 

 to be identical. 



D. latiovittata is one of the species closely related to and usually 

 confused with alternata. The aedeagus, however, differs consider- 

 ably from that of altemata, being somewhat intermediate in shape 

 between that species and pluriligata. D, latiovittata is distinguished 

 by the densely and more coarsely punctate prothorax. The elytra 

 also appear broader and more depressed than in alternata. The 

 Washington and Oregon specimens usually have wide black elytral 

 vittae and well-marked pronotal spots, but California specimens do 

 not have unusually wide dark vittae; in fact, the median one is 

 sometimes so narrow as to be interrupted, and the spots on the 

 pronotum are less marked. 



8. DISONYCHA SCHAEFFERI, new species 



Plate 2, Figtjrej 7 



Description. — Elongate oblong-oval, elytra coarsely and densely 

 punctate, feebly shining; pale, head with slightly darkened labrum, 

 often tubercles and occiput dark; prothorax with two well-marked 

 spots anteriorly, and only a trace of lateral and median spots, elytra 



