312 MEMOIRS ON THE COLEOPTERA 



slender, black, shining and with long sparse setae basally, opaque and 

 minutely, densely, cinereously pubescent and picescent thence to the 

 apex, the third joint much shorter than the fourth and scarcely more than 

 twice as long as the second; prothorax as long as wide or a little shorter, 

 more acutely but finely tuberculate at the sides near the middle than in 

 the preceding, bituberculate on the disk, the tubercles more separated, 

 the depressions strongly and loosely punctate, the median parts broadly 

 flat anteriorly, the median part broadly, feebly tumid toward base; 

 scutellum very small, wider than long; elytra two and one-half times as 

 long as wide, a fourth to evidently less wider than the prothorax, taper- 

 ing feebly from base to apex, slightly dehiscent but only at the apex, the 

 sides rounding to the apices, the apical angles very acute and dentiform; 

 surface dark steel-blue to greenish, polished, strongly and deeply, rather 

 closely and irregularly punctate, with short stiff erect hairs, the punctures 

 not serial in arrangement, the flanks concavo-deplanate posteriorly. 

 Length (e?) 5.7-7.0 mm.; width 1.3-1.8 mm. California, (Mokelumne 

 Hill, Calaveras Co.), Blaisdell. 



Distinguishable from cyanipennis Lee., to which it is rather 

 closely allied, by the very different coloration of the legs. The 

 elytra are dark steel-blue or greenish-blue and strongly shining. 



Callimus dehiscens n. sp. Similar in dorsal coloration and lustre to 

 the preceding, the under surface dark piceous, with the entire abdomen 

 red, the femora pale flavo-testaceous, black at tip, the tibiae and tarsi 

 throughout pale piceo-testaceous; long flying hairs abundant at the sides 

 of the body and on the legs; head more strongly and closely punctate 

 than in the preceding; antennae (cf ) similar in structure and vestiture 

 but paler, piceo-testaceous, black only at and near the base, stouter 

 distally in this and the preceding than in longicollis; prothorax as in 

 variipes but more strongly and closely punctate in the concave parts, 

 the lateral prominences more feeble, obtusely rounded and more posterior 

 in position, the median line narrowly tumid near the apex but not at 

 base, the wide post-medial subtumid smooth area distinct; elytra nearly 

 as in the preceding but much more rapidly tapering from base to the 

 apical arcuation, distinctly dehiscent for a much greater distance from 

 the tips, with the sutural margin gradually rounding outwardly, the 

 inner angle acute but not so prominent; punctures coarser and not so 

 close; flanks steeply declivous throughout, not at all deplanate. Length 

 (cf ) 6.4 mm.; width 1.6 mm. California (Los Angeles Co.). 



A second specimen before me is without indication of locality 

 but is probably specifically identical with the type; it is nearly 

 similar in every way, except that the elytral punctures are closer 

 and not so coarse, the under surface, except the red abdomen, deep 

 black, and the tibiae of the same flavate color as the femora and 

 similarly broadly tipped with black, but with the pale tarsal joints 

 tipped with black as in variipes. This species is very distinct from 

 variipes in elytral structure. 



