350 RHYNCHOPHORA. 
subcarinate in the ¢$, smoother, more curved, and rather slender in the 2, the antenne inserted near 
the middle in the 2 and at about one-third from the apex in the ¢, the outer joints of the funiculus 
transverse, the club ovate. Prothorax broader than long, the sides subparallel at the base and rounded 
from the middle forwards; closely, finely punctate, with indications of a smooth median line. Scutellum 
small, almost bare. Elytra a little wider than the prothorax, finely punctate-striate, the interstices 
rugulosely punctured. Beneath closely punctate; first ventral segment obsoletely sulcate in the ¢. 
Prosternum unimpressed behind the deep transverse subapical groove. Anterior coxe separated by a 
little less than their own width. Legs short ; anterior tibia without visible uncus at the apex ; inter- 
mediate and posterior tibie widened at the apex externally, 
Length 23-23, breadth 13-11 millim. (¢ @.) 
Hab. Mexico, Chilpancingo (1. H. Smith: 3), Toxpam (Sallé: @). 
One specimen from each locality. An oblong, somewhat flattened form, with the 
vestiture close and rather coarse (above and beneath), the scutellum short and almost 
bare, the antenne inserted beyond the middle of the rostrum in the male, the 
prosternum and anterior tibie unarmed. A species of doubtful position, but perhaps 
best placed in Limnobaris. 
12. Limnobaris bicincta, sp.n. (Tab. XVIII. figg. 2*, 2a, 2.) 
Oblong, flattened above, moderately shining, black, the antennw and sometimes the legs in part ferruginous ; 
the prothorax with a posteriorly-widened vitta on each side, extending down the antericr portion of the 
flanks, and the elytra with two interrupted transverse fascia—one basal, curved, the other, oblique, at 
about one-third from the apex—thickly clothed with narrow pure white scales; the rostrum, under 
surface (a large patch on the propleura excepted), and legs rather sparsely set with small narrow white 
scales, these becoming coarser and denser on the metathoracic episterna. Head closely punctate ; 
rostrum somewhat bowed from the base, moderately stout, nearly as long as the head and prothorax, 
striato-punctate, a little smoother at the tip in the Q, the antennw inserted at () or just beyond (3) 
the middle. Prothorax broader than long, gradually narrowing from near the base, feebly constricted in 
front; closely punctate, except along the median line, the interspaces alutaceous. Scutellum small, 
prominent. LElytra considerably wider than the prothorax, oblong, blunt at the tip, the humeri oblique 
and not prominent; sharply striate, the strie feebly punctate, the interstices broad and flat, obsoletely 
uniseriate-punctate. Beneath closely punctate; fifth ventral segment slightly hollowed down the middle 
in the g. Prosternum not or faintly depressed down the middle. Anterior cox separated by less than 
half their own width. Tibial claw arising from near the outer apical angle. 
Length 24-33, breadth 1-13 millim. (¢ 2.) 
Hab. Mexico, Cordova (Sallé); Guatemaua, Livingston and Trece Aguas (Schwarz 
and Barber, in U.S. Nat. Mus.). 
Ten specimens, the two from Cordova (?) much larger than the others. This 
insect has the aspect of a true Baris, but the pygidium is completely covered by the 
elytra. The markings resemble those of Z. bifasciata. The mandibles are small, 
notched in their inner edge, and less decussate than in most of the species here placed 
under Limnobaris. The upper portion of the mesothoracic epimera is visible from above. 
13. Limnobaris bifasciata, sp.n. (Tab. XVIII. fige. 3, 3a, ¢ .) 
Oblong-ovate, narrow, flattened above, shining, black, the legs and the tip of the rostrum piceous, the 
antenne ferruginous ; a streak on each side of the head between the eyes, a curved band on each side of 
* The elytra are narrower and more parallel-sided than shown on the Plate. 
