242 CALIFORNIA ACADEMY OF SCIENCES. 



54. Agrilus illectus, sp. nov. 



Moderately elongate, subcylindrical, cupreo-aeneous, dull above, more 

 shining beneath; pubescence sparse and inconspicuous, a little closer in a 

 faint subsutural vitta, and more markedly along the sides of the sterna 

 and vertical portions of the ventral segments. Antennae piceous, attain- 

 ing the middle of the prothorax, serrate from the fifth joint, the outer 

 joints as wide as or a little wider than long. Head broadly, strongly 

 longitudinally impressed, punctate and strigose. Prothorax a little wider 

 than long, sides feebly arcuate when viewed from above, sinuate when 

 viewed laterally; hind angles right, distinctly carinate; surface quite 

 strongly strigose except along the side margins; dorsal channel distinct 

 but not strong, lateral impressions well marked. Scutellum indistinctly 

 carinate. Elytra moderately sinuate; tips rounded, feebly or scarcely 

 serrulate; disk without trace of costae; surface imbricate. Prosternal lobe 

 truncate in front, a faint sinus at the middle; intercoxal process broad, 

 truncate at tip. Abdomen rather sparsely punctate, reticulate at sides. 

 Pygidium with a fine carina which does not nearly reach the tip. Claws 

 with a broad tooth. 



Length, 5-7.5 mm. 



Described from one male and three females taken at 

 Pomona and Pasadena by sweeping late in June. 



The sexual differences are feeble, consisting of a slight 

 flattening of the first two ventral segments, and the 

 longer, denser pubescence along the median line of the 

 sterna in the male. A. illectus would fall near A. im- 

 pexus by Horn's table, but it is not closely related to 

 any species. 



55. Collops argutus, sp. nov. 



Upper surface shining throughout, clothed with erect black and shorter 

 grayish hairs, the latter sparse and inconspicuous. Head black, labrum 

 and epistoma yellow, antennae black except the first joint and inner side 

 of second joint, which are pale. Head distinctly but not coarsely punc- 

 tate, the punctures separated on an average by their own diameters. 

 Prothorax transversely oval, fully two-thirds wider than long, entirely 

 rufous, very finely sparsely punctulate, the punctures a trifle closer at the 

 sides. Elytra densely moderately closely punctate, rufous, each with two 

 large black or bluish spots. The two basal spots involve the humeri, and 

 are confluent anteriorly at the suture; the posterior spots reach the margin 



