H. C. FALL 
69 
Ventral segments in great part black in both sexes. 
Prothorax less transverse, sides less strongly rounded, color normally 
black with a small reddish spot at the hind angles, rarely en- 
tirely black or with the sides entirely red; fourth and fifth ventrals 
of male with a single deep fovea on each coelestinus 
Prothorax more transverse, sides strongly rounded, color entirely 
red; fourth and fifth ventrals of the male conspicuously impressed 
anterior to the usual foveae complex 
Head nearly as wide as the thorax, elytra red with common scutellar spot 
and subapical spot on each, black repens 
Tanaops angusticeps new species 
Moderately elongate, elytra widened behind; black, elytra faintly greenish, 
the side margins, apex and suture behind the middle reddish yellow. Head 
very elongate, the width behind the eyes scarcely or but little greater than 
half the width of the thorax; black, epistoma anteriorly testaceous, sub- 
impunctate, shining. Anteimae black, basal two or three joints pale beneath, 
much longer and distinctly serrate in the male, joints five to ten with the 
outer or oblique edge sinuate; in the female scarcely serrate, the oblique edges 
of the joints not sinuate. Pro thorax entirely black, pohshed and subim punc- 
tate, a little wider than long, sides feebly arcuate, subparallel or slightly diver- 
gent posteriorly, angles all rounded. Elytra less shining, surface slightly 
uneven, finely not closely punctulate. Body beneath largely black in the 
male, the abdomen in the female yellow with the last segment, and occasionally 
the preceding in part, black. Legs black, tibiae and tarsi sometimes brown- 
ish, trochanters often more or less pale. Length 3 to 4 mm. 
California : Yosemite, June and July, three males, four females. 
In this species the head is more narrowly elongate than in any 
other known to me. The male seems to fit very closely the 
description of Motschulsky’s Cephalistes apicalis, which Horn 
has placed as a synonym of LeConte’s longiceps. Without actual 
comparison of types it is now impossible to say just what apicalis 
is; for the present therefore it is best to accept the synonj^my as 
stated by Horn. 
Tanaops abdominalis LeConte, Proc. Acad. Nat. Sci. Phila., 1859, p. 74. 
Rufo-testaceous, head in great part black, prothorax with or without a 
median black vitta; elytra each with a broad black or greenish black vitta, 
often narrowed or interrupted at middle, the side margins, tip and suture 
nearly to the base, pale; surface rather strongly shining throughout. Head less 
elongate than in the preceding species, fully three-fourths as wide behind the 
eyes as the prothorax, black with the epistoma more or less pale, the pale color 
sometimes extending on the front. Antennae black, more or less pale at base, 
distinctly stouter than in angusticeps, longer and more serrate in the male 
as usual. Prothorax somewhat wider than long, highly polished, subimpunc- 
tate, slightly narrowed in front, typically with a wide, black, median stripe. 
TRANS. AM. ENT. 80C., XLIII. 
