LEPTINOBARIS.—DOLICHOBARIS. ALT 
finely punctate, smooth at the tip. Prothorax convex, nearly as long as broad, narrowed in front, the 
sides rounded anteriorly and parallel behind ; very sparsely, minutely punctate and with a row of coarser 
squamigerous punctures along the basal margin. Scutellum smooth. LElytra long, very gradually 
narrowing from about the basal third; finely punctate-striate, the interstices broad, flat, and almost 
smooth. Pygidium rugulosely punctate. Beneath closely and coarsely, the abdomen very sparsely and 
finely, punctate ; first ventral segment shallowly sulcate down the middle. 
Length 22, breadth 1 millim. (<¢.) 
20 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. 
MACROBARIS, gen. nov. 
Mandibles short, decussate ; rostrum (fig. 28 a) very short, stout, abruptly bowed from the base, flattened anc 
thinner at the tip, the antenne inserted at the middle, joints 2-7 of the funiculus short and closely 
articulated, the club small, ovate, the scrobes deep and oblique; eyes large, transverse ; prothorax feebly 
sinuate at the base; scutellum small, oblong, subquadrate, flat; elytra very elongate; pygidium exposed, 
strongly transverse, subvertical ; prosternum with a deep, sharply-defined sulcus, which is obliquely 
narrowed from the apex to the subcontiguous, large, exserted anterior coxve, the very narrow space 
between the latter not raised and on a level with the short basal portion ; mesosternum short, depressed ; 
metathoracic episterna narrow ; ventral segments 2 and 5 equal in length, 3 and 4 each about half as 
long as 2; legs moderately long; femora unarmed, sublinear; tibie slender, strongly unguiculate, the 
claw on the anterior pair ( ¢) very long; tarsal claws minute, connate at the base; body very elongate, 
narrow, cylindrical, polished, almost glabrous. 
Type, M. producta. 
This genus, based on a single species, from Guatemala, is nearly allied to Leptinobaris, 
from which it may be distinguished by the large, prominent, subcontiguous anterior 
coxee (the space between them not in the least raised), the deep anteriorly-widened 
prosternal sulcus, the differently formed rostrum, the uni-unguiculate anterior tibie 
(in the male), the very elongate elytra, &c. The only described S.-American genus 
approaching Macrobaris is Parallelosomus, Schonh. 
1. Macrobaris producta, sp.n. (Tab. XX. figg. 28, 28a, b, ¢.) 
Shining, black, the antenne and tips of the tarsi obscure ferruginous ; almost glabrous above, the pygidium 
and under surface with a few fine hair-like whitish scales. Head sparsely, finely punctate, deeply 
foveate between the eyes; rostrum a little longer than the head as seen in profile, sparsely punctate, 
smooth at the tip. Prothorax slightly longer than broad, rather convex, narrowing from about the 
middle, feebly constricted in front ; very sparsely, finely punctate. Scutellum smooth. LElytra a little 
wider than, and about two and one-half times the length of, the prothorax, subparallel, somewhat 
produced at the apex, the apices each with a small angular prominence, the humeri rounded; finely, but 
sharply punctate-striate, the interstices flat and almost smooth. Pygidium rugulosely punctate. Beneath 
very sparsely punctate ; ventral segment 1 deeply, and 95 shallowly, excavate down the middle. 
Length 33-4, breadth 1 millim. (<¢.) 
Hab. Guatemata, Duefias (Champion). 
One specimen. 
DOLICHOBARIS, gen. nov. 
Mandibles short, decussate; rostrum arcuate, cylindrical, moderately long, sometimes very elongate in the © 
(D. opaciceps), the antenne inserted near ( 3) or behind ( 2) the middle, the joints 2-7 of the funiculus 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 3 HH 
