384 CALIFORNIA ACADEMY OF SCIENCES. 



Antenna^ entire!}^ pale. Head moderately closely but not 

 distinctly punctate. Thorax broader than long, sides 

 strongly arcuate with a short apical and longer basal nar- 

 rowing in the usual manner, surface scabrous. Elytra 

 wider at base than the thorax, slightly narrowing to apex, 

 margin serrate, apex very obtuse, surface shining coarse- 

 ly punctured the punctures well separated except in a 

 space one-third from apex where the punctures are fine, 

 more crowded and with the pubescence, irregular form- 

 ing a closer fascia. Body beneath black, feebly shining. 

 Legs slightly variable, but the tendency is to have the 

 anterior and middle legs pale, the posterior piceous. 

 Length, .14 inch; 3.5 mm. 



The species of Hydnocera are so variable in color and 

 so difficult to describe sufficiently that it seems hardly 

 proper to indicate new species in an isolated manner un- 

 til the genus has undergone a systematic study. In a 

 faunal list like the present essay there is a slight excuse 

 for description. The species above named has the form 

 and general appearance of Ininicralis, but with elytral 

 punctures oi ^allipennis. 



Occurs at San Jose del Cabo. 



It might be here observed that H. fiircata Ghm. (Biol. 

 Cent. Am., iii, pt. ii, p. 342, pi. xiii, fig. 14) is one of the 

 many varieties of discoidea Lee. 



Xestobium elegans n. sp. Plate viii, fig. 9, antenna. 



Cylindrical, parallel, brown, elytra marmorate with a 

 mixture of ochraceous and white pubescence having a 

 broad band at middle and a spot near apex nude. Anten- 

 nae pale except the basal joint. Head closely punctate. 

 Thorax wider than long, narrower in front, densely 

 punctate, clothed with recumbent white pubescence, 

 naked on the median and a transverse line, also on a spot 



