246 CALIFORNIA ACADEMY OF SCIENCES. 



the suture. Legs piceo-testaceous, the tibi^ paler, the 

 femora at base darker. Length .20 inch. ; 5 mm. 



This species is placed temporarily in the genus from its 

 very close resemblance in all the more important struc- 

 tural details, although the antennae suggest a relationship 

 with the Cleomenides, as defined by Lacordaire. The 

 antennse are not setaceous as in Rhopalophora, but rather 

 filiform, the three penultimate joints slightly flattened and 

 subseviate. 



The specimen at my disposal is a female and unique, 

 from which the useful parts of the mouth have disap- 

 peared. The ornamentation of the elytra is not in line 

 with Rhopalophorus, and it seems very probable that the 

 discovery of the male will show the necessity for suggest- 

 ing a new generic name. 



One specimen. San Jose del Cabo. 



Dysphaga debilis n. sp. 



Slender, elongate, pale yellowish testaceous, abdo- 

 men piceous. Front not punctate, neck obsoletely punc- 

 tate. Thorax a little wider at middle than long, sides 

 slightly arcuate, surface dull, not distinctly punctate, 

 sparcely pubescent. Elytra one-third longer than the 

 head and thorax, extending beyond the middle of the 

 abdomen, surface shining, slightly wrinkled and vaguely 

 bicostulate. Abdomen piceous, the last ventral segment 

 yellow at apical half. Length, .18 inch; 4.5 mm. 



The single specimen has the last ventral deeply trian- 

 gularly incised. This is thought by Dr. LeConte to be 

 a female character. 



San Jose del Cabo. 



The species of Dysphaga are few in number and speci- 

 mens are always rare. They may be separated as fol 

 lows : 



