- 
206 HETEROMERA. 
3. Notoxus impressus. (Tab. IX. figg. 14, 14a, ¢.) 
Elongate, narrow, piceous or piceous-brown, shining, somewhat thickly clothed with fine decumbent pubescence, 
without intermixed erect hairs; the prothorax varying in colour from piceous to piceo-testaceous, the 
horn reddish or reddish-testaceous; the elytra testaceous, with a spot on either side of the scutellum 
below the base, a rather broad transverse fascia at or just beyond the middle, and the apex, piceous, the 
piceous colour in some examples extended along the suture from the median fascia to the postscutellar 
spot and also along the lateral margin to the base. Head with a few erect hairs, finely and sparsely 
punctured, the front more or less concave ; prothorax globose, as long as broad, minutely and very sparsely 
punctared—the horn long and moderately broad, a little narrower in the male, rounded at the tip, the 
sides distinctly margined and finely serrate, the crest not much narrower than the horn, feebly raised, its 
margins indicated by a row of small tubercles; elytra narrowing from the middle to the base, elongate- 
oval, finely and moderately closely punctured, the punctuation shallower towards the apex, the usual 
oblique depression below the shoulders deep in both sexes, the humeri distinct, the apices conjointly 
rounded in both sexes, the sutural angle rather obtuse; beneath varying in colour from piceous to piceo- 
_ testaceous; legs and antenne testaceous, the latter and the femora and tibie sometimes slightly infus- 
cate; fifth ventral segment with a shallow triangular depression in the middle at the apex, and the apex 
truncate in the male. 
Length 23-3 millim. (¢ 9.) 
Hab. Guatemaa, Aceytuno (Salvin), Guatemala city (Salvin, Champion), Capetillo, 
Calderas (Champion). 
Not rare on the central plateau of Guatemala, at elevations between 5000 and 7000 
feet. Narrower and more shining than WN. acwminatus; the apices of the elytra con- 
jointly rounded (not subacuminate) in both sexes; the elytral pubescence entirely 
decumbent, without intermixed erect hairs. The colour is variable. ‘The antenne are 
very long and comparatively slender in the male, shorter and stouter in the female. 
The thorax is shining and globose. 
4. Notoxus eximius. (Tab. IX. figg. 15, 15a, 2.) 
Moderately elongate, narrow, piceous, thickly clothed ‘with very fine decumbent pubescence, without inter- 
mixed erect hairs; the prothoracic horn rufous or testaceous; the elytra piceous, each with oblique 
stripe below the shoulders (not reaching the suture) and a curved oblique stripe beyond the middle 
(curving upwards and narrowing towards the suture—in some specimens reaching it, in others not 
extending so far inwards) testaceous or fusco-testaceous, the pubescence on these stripes more or less 
whitish—in some examples silvery-white, the base and apex sometimes paler; the pubescence on the 
head and on the base of the prothorax whitish. Head sparsely and minutely punctured, with a few erect 
hairs in front, the front concave in the middle; prothorax globose, as long as broad, very densely and 
minutely punctured, opaque—the horn moderately Jong, narrow in the male, much broader in the female, 
rounded at the tip, the sides serrate and distinctly margined, the crest slightly raised, its margins feeble 
or merely indicated by a row of tubercles ; elytra narrowing from the middle to the base, oblong-oval, 
minutely and densely punctured, slightly shining, the usual oblique depression below the shoulders deep in 
both sexes, the humeri distinct, the apices conjointly rounded in both sexes, the sutural angle rather 
obtuse; beneath piceous; antenne testaceous, the outer joints often darker ; legs testaceous, the outer 
halves of the femora sometimes infuscate or piceous ; fifth ventral segment unimpressed and broadly and 
shallowly emarginate at the apex in the male. 
Length 24-22 millim. (¢ @.) 
Hab. GuateMata, near the city, Duefias, Zapote (Champion); Nicaragua, Chinandega 
(Sallé); Panama, Tolé (Champion). 
