400 CALIFORNIA ACADEMY OF SCIENCES. 



sembling Elaphidion in habitus. The foveate punctures 

 resemble a similar sculpture seen in Brothyhis gcmmida- 

 lus. 



San Jose del Cabo. 



ACYPHODERES DELICATUS n. sp. 



Form slender. Head yellowish, cribrately punctate. 

 Antennje similar in color, half the length of body, stouter 

 externally, scape coarsely punctate, third joint nearly as 

 loner as the next three. Thorax as broad as long, wider 

 at middle, sides regularly arcuate, disc convex, densely 

 punctate, very finely pubescent, a feeble median smoother 

 line and vague oblique umbone either side, color reddish- 

 brown, base and apex bordered with black. Scutellum 

 flavo-pubescent. Elytra pale brownish testaceous, yel- 

 low-white along the base, form subulate, sparsely punc- 

 tate and shining, although somewhat rugose near the 

 base. Prothorax beneath black, densely punctate. Meta- 

 thorax sparsely punctate and pubescent, with denser 

 hair anteriorly. Mesopleura^ and apex of met-episternum 

 densely flavo-pubescent. Abdomen pale piceo-testaceous, 

 sparsely punctate and with few short hairs. Legs rufo- 

 testaceous, the basal half of the tibge and femora yellow- 

 white. Length, .45 inch; 11 mm. 



The introduction of this genus into our fauna requires 

 that an additional tribe be added to the table as given on 

 page 276 of the Classification, and placed near the Ancy- 

 locerini and Rhopalophorini, from both of which tribes 

 the new one will be distinguished by having the anterior 

 coxse cavities closed behind. The tribe is named Rhino- 

 trogides by Lacordaire. 



The species above described resembles suavis Bates 

 (Biol., V, p. 290, pi. XX, fig. 20), but is smaller and dif- 

 ferently colored. 



El Taste. 



