262 CALIFORNIA ACADEMY OF SCIENCES. 



beneath. C. erysimi would be associated with C. quad- 

 rilineatus Chev., but this is said to have the thorax 

 distinctly carinate and (according to Le Conte's descrip- 

 tion) the third joint of the hind tarsi is not brouder 

 than the second and not spongy beneath. 



82. Anthonomus apertus, sp. nov. 



Short, stout, black, moderately shining, without aeneous lustre, clothed 

 sparsely with white pubescence, which is more conspicuous beneath. 

 Beak somewhat variable, rather long, shining and more or less punctate 

 at the apex, dull and more or less longitudinally strigose and sulcate 

 behind the insertion of the antennae; frontal fovea distinct, punctiform. 

 Antennae testaceous, club piceous; funicle seven- jointed, slender, its sec- 

 ond joint slightly longer than the third, outer joints scarcely as wide as 

 long. Prothorax about twice as wide as long, sides moderately rounded, 

 more strongly in front, apex feebly constricted, punctuation strong and 

 rather close. Elytra short, abruptly more than one-third wider than the 

 prothorax, sides parallel to beyond the middle; strife moderate, punctures 

 rather fine, not very closely placed; intervals wide, feebly convex, slightly 

 transversely rugose; scutellum densely clothed with white pubescence. 

 Femora all armed with a distinct spiniform tooth; front and middle tibiaa 

 slightly curved inward at tip; tarsi piceo-testaceous, the first joint of an- 

 terior pair about one-half longer than the second; claws armed with a 

 moderately long tooth. 



Length, 1.75-2.25 mm. 



Several examples were taken at Riverside and Los 

 Angeles. 



A. apertus belongs to the scutellatus group, and is 

 most closely related to A. ebeninus, from which it differs 

 greatly in size and also in several minor details. It 

 resembles A. morulus very closely, a specimen sent to 

 Dr. Horn being so determined, but aside from the 

 group characters, it is more shining, with more slender 

 antennae, and longer femoral teeth. 



83. Anthonomus helianthi, sp. nov. 



Pitchy brown, beak red-brown, legs paler; densely clothed with elongate 

 greyish white scales which become faintly yellowish on the middle of the 

 prothorax and on the basal portion of the third (sometimes also the second 



