362 CALIFORNIA ACADEMY OF SCIENCES. 



Thermonectes peninsularis n. sp. Plate viii, fig. 10. 



Oval, moderately convex, shining, yellowish testaceous, 

 elytra closely irrorate with small black spots. Head 

 pale, a small vertical transverse piceous spot, occiput nar- 

 rowly piceous. Thorax almost entirely yellow, the usual 

 apical and antebasal black lines closely approximated and 

 very near the base. Elytra closely irrorate with black 

 spots, the border pale except near the apex, without trace 

 of transverse fascia except a larger black spot one-third 

 from apex, surface of el3^tra smooth, the rows of coarse 

 punctures nearly obliterated. Body beneath rufescent, 

 prosternum, front and middle legs pale. Length, .41 

 inch ; 10.5 mm. 



The single specimen seen is a male. In general ap- 

 pearance it resembles ornaticoUis, but is smaller and 

 broader. It differs from all the species known to me 

 belonging to the same group, by the absence of the ely- 

 tral fascia and the peculiar style of thoracic ornamenta- 

 tion. 



San Jose del Cabo. 



Staph YLiNUS lucanus n. sp. 



Slender, dull black, opaque, last dorsal in part, last 

 ventral entirely castaneous. Antenna? not long, joints 

 5—10 transverse, black, the under side of the first joint 

 at apex and the basal half of the second reddish. Head 

 subtriangular, densely punctured, a smooth median line 

 posteriorly, surface wath very short erect black pubes- 

 cence. Eyes not as long as half the sides of head. 

 Thorax a little wider than long, truncate in front, sides 

 parallel, base rounded, surface densely punctate with a 

 narrow smooth median line, surface pubescent similarly 

 to the head. Scutellum velvety black. Elytra more 

 finely and densely punctured than the head and thorax 



