A STUDY OF THE GENUS MONOXIA — BLAKE 157 



LeConte's Latin description of Galleruca angularis may be translated 

 thus: Above ochreous, densely pubescent, densely and not finely 

 punctate, with the prothorax uneven, almost twice as broad as long, 

 anteriorly and posteriorly transversely impressed, canaliculate, with 

 sides oblique, rounded, at base sinuate, the posterior angles with 

 acute prominences ; the elytra with an inf uscate lateral vitta and small 

 remote spots in a triple series; the body beneath black, the legs yellow, 

 and antennae fuscous. Length 0.22 inch. In a later description he 

 gave the locality as "California near San Francisco? given me by 

 Mr. S. S. Rathvon" and stated that the elytra are finely and densely 

 punctured and not depressed and that the species is easily distinguished 

 by the very prominent angles of the prothorax. He difi'erentiated it 

 from guttulata by the form of the prothorax and by the black elytral 

 dots being arranged in series. 



In the LeConte collection there are six specimens under this name, 

 one of which bears LeConte's label and the Museum of Comparative 

 Zoology type No. 4382. Of these six specimens two have gilt labels 

 indicating the locality California, three are labeled California and have 

 dots such as Crotch and Casey used, and the last specimen is labeled 

 "S.Ill." The specimen bearing LeConte's label angularis corre- 

 sponds entirely with his description. It is a female, approximately 

 5.3 mm. long, with simple claws. The head is pale and covered with 

 dense gray pubescence. A dark median line, somewhat impressed, 

 extends down the front. The tip of the mandibles is also dark. The 

 antennae are pale at the base with darker and thicker apical joints; 

 the third joint is scarcely twice as long as the fourth. The prothorax 

 is not quite twice as wide as long, wdth arcuate sides and prominent 

 basal angles on which is a blunt tooth. The disk is depressed in the 

 middle and on the sides, coarsely and densely punctate, with short, 

 closely appressed pubescence not concealing the punctures. In color 

 it is pale yellow-brown, with faint reddish-brown marldngs on the 

 sides. The elytra are considerably wider than the prothorax, without 

 marked depressions. The humeri are prominent, the punctation 

 dense, rather coarse and deep at base, and toward the apex becoming 

 finer and shallower. The pubescence is fine, short, and closely ap- 

 pressed without concealing the punctures. Beneath, the body is dark 

 except the last abdominal segments, which are paler on the sides, the 

 last segment being almost entirely pale. The legs are pale. The 

 second specimen, a female, nearly a third smaller (4 mm.), differs from 

 the first by not having the basal angles of the prothorax prominent 

 and by lacking the lateral dark vitta on the elytra and is not the same 

 species. The remaining specimens are all similar to the first and with- 

 out doubt the same. It seems probable that LeConte had only one 

 specimen at the time that he made his original description, since the 



