42 Coleopierological Notices, III. 



and sides. Head finely, densely punctate ; antenn;e (male) nearly as long as 

 the body, slender, filiform, the third joint much longer than the fifth, the 

 latter distinctly longer than the fourth, (female) nearly three-fourths as long 

 as the body, with the joints proportioned nearly as in the male. Prothorax 

 about as wide as long, campanulate, with the sides inflated and broadly sub- 

 angulate before the middle, the basal angles acute and strongly produced out- 

 wardly and posteriorly ; disk almost evenly convex, with a small impunctate 

 vitta near the base, rather strongly and somewhat sparsely punctate in the 

 male, densely so in the female. Elytra at base distinctly wider than the pro- 

 thorax, a little more than twice as long as wide ; sides moderately convergent 

 (male), or very feebly so (female) ; apex narrowly and evenly truncate, the 

 truncation but slightly oblique ; disk strongly, rather densely punctate 

 (male), or extremely densely and more finely so (female). Legs rather long 

 and slender. Length 7.0-11.0 mm. ; width 2.0-3.3 mm. 



Idaho. 



Greatly resembles trihalteata Lee, and differs from that species 

 in much the same way that nitens Forst. (zebra Oliv.) does from 

 laefa Lee. The form in the male is more slender than in tribalteata, 

 with the elytra less strongly narrowed from base to apex, and with 

 the a})ical truncation much less oblique ; the antennae are much 

 longer and more slender, and the third joint is distinctly shorter in 

 comparison with the next two ; the dorsal punctuation is coarser, 

 deeper and sparser in the male but rather denser in the female, 

 and the transverse bands of the elytra are much narrower. The 

 antennoe are always pale in sefyenfina and intense black in tribal- 

 teata, and the head and eyes are smaller in the former than in the 

 latter. 



L.. lialdemani n. ap. — Slender and rather convex, intense black 

 throughout tlie body, legs and antennse, the elytral humeri obliquely red ; 

 lustre moderately shining ; pubescence short, sparse and inconspicuous. 

 Head wider than long, the tempora and base nearly as in sanguinea; surface 

 fiat, very densely punctate ; antennje (male) nearly as long as the body, 

 rather stout. Prothorax much longer than wide, as in sanguinea, but much 

 less inflated or subangulate at the middle ; disk rather coarsely, deeply and 

 extremely densely punctate, the punctures in close mutual contact, without 

 distinct median impunctate line except very narrowly toward base, the line 

 generally with a very fine impressed stria. Elytra between two and three 

 times as long as wide, at base nearly one-half wider than the prothorax, the 

 humeri rounded but rather prominent ; sides evenly and rather strongly con- 

 vergent from base to apex and straight ; each elytron narrowly truncate at 

 apex, the truncation slightly oblique and straight or extremely feebly sinuate, 

 the angles obtuse ; disk not very coarsely or densely punctate, the punctures 

 deep and perforate toward base, becoming finer and more or less asperate 



