LAMPROBARIS.—PLATYBARIS. 247 
Prothorax very little broader than long, the anterior lobe arcuately produced in the middle, smooth. 
Elytra sharply striate, the strie feebly punctate, the interstices flat on the disc and sharply raised on 
the apical declivity. Prosternum and propleura smooth, the rest of the under surface very sparsely 
punctate. Legs sparsely punctate. 
$. Prosternum armed with two long spines and with a very deep excavation between them; first ventral 
segment slightly depressed down the middle. 
Length 4, breadth 2 millim. (¢.) 
Hab. GuatTemata, Sinanja in Vera Paz (Champion). 
One male. Larger and more elongate than ZL. cucullatus, the elytra black, with a 
shoulder-spot and a large apical patch rufous, the prothorax longer and more 
produced over the head, the elytral interstices more sharply raised at the apex, the 
legs sparsely punctured. 
PLATYBARIS, gen. nov. 
Rostrum stout, arcuate; mandibles straight on their inner edge, pointed, free; antennal club short-ovate ; 
prothorax tubulate in front, deeply sinuate at the base; scutellum free, small, subcordate, flattened ; 
elytra rounded-triangular; pygidium not visible; prosternum without definite groove, the intercoxal 
portion tumid; anterior cox small, separated by about their own width; femora unarmed ; anterior 
tibiee with a lamelliform prominence on the inner edge in the ¢; tarsal claws free; body broad, 
rhomboid-elliptic, polished and glabrous above. 
Type, P. lamellifer. 
This genus is based upon a single species from Mexico. It is one of those Centrinid- 
forms, like the N.-American Pachybaris, that has wholly the facies of the numerous 
genera with completely exposed pygidium. ‘The armature of the anterior tibie of the 
male is different from that of any Barid known to me, the triangular lamelliform tooth 
being placed nearer the apex than in the few species possessing this character. 
1. Platybaris lamellifer, sp.n. (Tab. XIV. figg. 4, 4a, , 3.) 
Broad, flattened above, shining, black, the elytra and antenne piceous; the under surface and legs sparsely 
clothed with small, cinereous, hair-like scales, the upper surface bare. Head finely punctate, transversely 
grooved between the eyes; rostrum curved, stout, about as long as the head and prothorax, thickly 
punctate, the antenne inserted near the middle, joint 1 of the funiculus as long as 2-5 united ; eyes 
strongly transverse. Prothorax broader than long, arcuately narrowing from the deeply sinuate base, 
strongly constricted and tubulate in front; sparsely, finely punctate, except along a narrow space down 
the middle, the punctuation becoming closer and coarser towards the sides and on the flanks. Hlytra a 
little wider than the prothorax, narrowing from the rounded humeri, the disc transversely depressed at 
and below the base; with narrow, sharply-cut, finely punctured strie, the interstices flat, broad, and 
very sparsely, minutely, subseriately punctate. Beneath closely punctate. Prosternum slightly depressed 
anteriorly. Metasternum and first ventral segment shallowly sulcate down the middle. Legs short; 
anterior tibic with an angular, corneous, rufo-testaceous, lamelliform prominence on the inner edge 
towards the apex (fig. 4 6), the intermediate pair hollowed on the inner side at the tip. 
Length 51, breadth 3 millim. (¢.) 
Hab. Mexico, ? Sierra de Durango (Hoge, in coll. Solari). 
One specimen. A broad, flattened form, glabrous above, with the elytral striz 
narrow and the interstices very broad, 
