AMERICAN COLEOPTERA. 59 



of Epicauta the second joint is very small compared with the third. 

 In any future review of the genera of Meloidae it would be better 

 to restrict the name Macrohads to those species in which the second 

 joint of the antennas is decidedly longer than the third or the an- 

 tennse dissimilar in the sexes. This would exclude from Macrobasis, 

 iminaculata, segmentata and Gissleri. 



Retaining for the present the genera as constituted, the two pre- 

 ceding species require a slight modification of the table of Macrobasis 

 as given by me (Proc. Am. Phil. Soc. 1873, pp. 88—89). 



M. linearis having the first joint of the % antennae as long as the 

 next four together, while the second is as long as the third and fourth 

 together, must be placed in A, near toi-sa from which it may be sepa- 

 rated in the table by the absence of contortion at the tip of the first 

 joint and by the first and second joints sulcate. It must be placed 

 between viiyulata and torsa. 31. Gisslei-i fiills in B, and is easily 

 known by its small size and sexual characters and the second joint 

 of the antennae rather shorter than the third. 



CALOSPASTA Lee. 

 C moesta n. sp. — Elongate, black, shining, glabrous. Head sparsely punc- 

 tured. Antennae attaining the middle of the thorax, gradually stouter toward 

 the tip. Thorax a little longer than wide, sides at basal half parallel, apical 

 half gradually convergent to the front, surface very sparsely punctate. Elytra 

 nearly twice as wide at base as thorax slightly wider toward the tip, surface 

 finely scabrous and with two feeble lines extending nearly to tip. Body be- 

 neath and legs black, shining and with very short black pubescence. Spurs of 

 hind tibiae dissimilar, the inner slender and acute, the outer stout, cylindrical 

 and obliquely truncate at tip. Length .64 — -.90 inch ; 16 — 23 mm. 



This Species resembles Canthai-is lugens in its superficial characters 

 and might readily be confounded with it. The claws are however as 

 in Calospasta, the lower portion being here very much shorter than 

 the upper and connate with it. 



Two specimens, California, probably from the southern portion. 



C Fuller! n. sp. — Black, ojiaque, surface sparsely nigro-pubescent, form 

 rather robust. Head opaque, scabrous. Thorax as wide as the head but smaller 

 in size, one-half wider than long, sides posteriorly slightly convergent, ajiex 

 suddenly narrowed, surface opaque, sparsely punctate. Elytra nearly twice as 

 wide as thorax, slightly wider posteriorly, surface opaque, scabrous, and with 

 very short, indistinct, black pubescence. Body beneath and legs black and 

 shining, sparsely pubescent. Spurs of hind tibiae slender and acute. Antennae 

 longer than head and thorax. Length .38 inch; 9.5 mm. 



This insect resembles some of the entirely black varieties of Can- 



iharis stygica. 



