380 CALIFORNIA ACADEMY OF SCIENCES. 



I have already expressed the opinion that there are no 

 real differences between Negalius and Calospasta (Proc 

 Cal. Acad. Sci., 1894, P* 43^)- The mandibles are, how- 

 ever, much stouter, the free edge grooved, the apices four- 

 toothed on the left side and five on the right. The man- 

 dibles of Calospasta have but one groove, as in the case 

 in Tegrodera. In Eupompha the mandibles more nearly 

 approach those of Negalius, being quite strongly toothed. 



JV. marmoratus resembles at first sight an old and 

 weathered specimen of Efiicatita -pardalis. 



Cephaloon Newm. 



The occurrence of two new species makes it neces- 

 sary to amplify the table published by LeConte (Proc. 

 Bost. Soc. Nat. Hist., xvi, p. 276): 



Appendage of claws broad. 

 Appendage rounded at tip. 



Antennas very evidently thicker externally, scarcely longer than the 



head and thorax. lepturides. 



Antenna? slender, scarcely thicker externally, evidently longer than 

 head and thorax. 

 Color entirely piceous. piceum. 



Color in great part yellow; antennas with three basal joints yellow, 

 the outer gradually paler. tenuicome. 



Appendage of claw subacute at tip. 



Antennae slender, scarcely thicker externally, three basal joints yel- 

 low, outer three paler. bicolor. 

 Appendage of claws very slender, curved at tip and acute. ungulare. 



Cephaloon piceum n. sp. 



Form slender, entirely piceous, clothed with very fine, 

 short, grayish pubescence, entire surface densely, finely 

 punctate, less dense on the elytra. Antennae slender, 

 distinctly longer than the head and thorax, piceous, the 

 three outer joints decidedly paler. Last joint of maxillary 

 palpus distinctly cultriform. Body beneath, and legs en- 

 tirely piceous. Length .48 inch.; 12 mm. 



