HETEROMERA. 535 
striate from the base nearly to the apex, without scutellar stria ; epipleure broadly extending to the apex ; 
prosternum strongly carinate, the carina extending forwards to the anterior margin of the prothorax, and 
widened and produced behind the cox, the apex rounded and deeply excavate beneath for the reception 
of the convexly raised mesosternum: anterior coxze deeply inserted, transverse, rather distant; inter- 
mediate coxe very widely separated, with small trochantin, the cavities almost closed externally ; 
metasternum moderately long ; intercoxal process of the abdomen triangular ; legs short, the femora stout 
and compressed ; the tibie feebly denticulate on their outer edge at the tip, the anterior pair triangularly 
dilated, the two hinder pairs flattened, more slender, the spurs short but distinct; tarsi 5-, 5-, 4-jointed, 
slender, simple, clothed with rather long scattered hairs beneath, the first joint of the hind pair as long 
as joints 2 and 3 united; body oblong-oval, convex, glabrous, winged. 
This genus is proposed for a small species of uncertain affinities. Its glabrous, 
compact body and general shape resemble that of some of the smaller and narrower 
forms of Histeride. Zypates seems to be best placed in the vicinity of Phthora, in the 
Ulomides. ‘The deep groove on either side of the head beneath for the reception of 
the basal joints of the antenne, the strongly anteriorly carinate prosternum, very small 
eyes (scarcely visible from above), and broad, complete epipleure are its chief 
characteristics. The prosternal process resembles that of Hnnebwus, but in that 
genus the process is not continued forwards in the form of a carina. 
1. Zypetes epieroides. (Tab. XXIII. fige. 3; 3a, labium; 36, maxilla and 
maxillary palpus; 3c, antenna.) 
Oblong-oval, very shining, varying in colour from pitchy-black to pale testaceous, the legs, oral organs, and 
antennse testaceous or rufo-testaceous, the femora sometimes paler. Head very finely, sparsely punctate ; 
prothorax strongly transverse, subtruncate at the base, the apex broadly and shallowly emarginate, the 
anterior angles declivous and slightly produced, the hind angles rectangular, the sides parallel behind, 
feebly rounded and converging in front, the surface sparsely, very finely punctate; elytra each with six 
punctured strie, the first stria continued upwards in a straight line to the base, the punctures fine and 
approximate, the interstices flat, very sparsely, minutely punctate ; beneath with the lateral portions and 
the epipleure finely, sparsely punctate, for the rest smooth. 
3? Head broadly and shallowly depressed in the middle anteriorly. 
Length 2-2? millim. 
Hab. Mexico, Jalapa (Flohr, M. Trujillo); Guaremata, Zapote (Champion); Nica- 
RaGuA, Chontales (Janson). 
Seven examples. Varies greatly in colour, after the manner of an Hngis, and also in 
size, the two specimens from Guatemala being very much smaller than any of the 
others. The supposed male is from Chontales. . 
ECHOCERUS (p. 145). 
3. Echocerus curvicornis. 
Reddish-testaceous, shining. Head short, densely, finely punctate in the female, almost smooth in the male; 
eyes large, very coarsely faceted, in the female extending laterally far beyond the sides of the front ; 
antenne rather stout, joints 5-10 very strongly transverse ; prothorax much broader than long, the sides 
parallel behind and a little rounded in front, the apex (viewed from above) truncate, the anterior angles 
obtuse, the surface closely, finely punctate; elytra finely punctate-striate, the interstices flat, minutely, 
thickly punctate. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, January 1893. 3 ZZ 
