114 HETEROMERA. 
much broader than fifth, seventh to tenth broad and transverse, eleventh large and broad ; inner lobe of the 
maxille unarmed ; apical joint of maxillary palpi securiform ; head deflexed, short ; epistoma short, in the 
female broadly truncated, in the male broadly but feebly emarginate in front; sides of the front feebly swollen ; 
eyes distant, large, broad oval; labrum not prominent, scarcely visible from above; prothorax strongly 
transverse, distinctly margined at the sides, convex, hind angles prominent and slightly divergent, base 
strongly bisinuate and scarcely margined within, closely embracing the elytra ; scutellum large, triangular ; 
elytra wider than and nearly three times as long as the thorax, strongly convex, punctate-striate, or with 
rows of coarsish impressions placed upon indistinct stri#, and with a distinct scutellar stria, base shallowly 
impressed on each side near the rather distinct humeri; epipleure narrow, widening suddenly at the base, 
and ending about the last ventral suture ; prosternum deflexed behind, horizontal or subhorizontal, and the 
apex slightly produced ; mesosternum very feebly raised on each side anteriorly, rarely concave within ; 
trochantin distinct ; legs short; femora unarmed, intermediate and posterior pairs slightly swollen in the 
middle ; tibise curved, short, distinctly channelled on their outer edge, spurs very small or obsolete; tarsi 
short, rather stout, basal joint about as long as the two following joints united; the basal joints not very 
thickly clothed with hair beneath. Winged. Species black and shining. 
The above characters have been drawn up to receive a few species from Central 
America and Colombia. Jsicerdes may be known from Glyptotus by the comparatively 
small head, very short transverse thorax, shorter legs, short basal joint to the hind tarsi, 
the tarsi less thickly clothed with hair beneath, and the tibis more or less distinctly 
channelled on their outer edge. 
1. Isicerdes occultus. (Tab. VI. fig. 2.) 
Oblong ovate, very convex, black, shining. Head sparingly and very finely punctured, the punctuation a little 
more distinct and closer between the eyes; prothorax strongly transverse, lateral margins prominent, 
slightly rounded at the sides, sinuate before the base, widest at the base and slightly narrowing anteriorly, 
anterior angles produced and rounded, hind angles slightly divergent and subacute, shallowly and broadly 
impressed just before the base, finely, distinctly, and not very closely punctured ; elytra with regular 
rows of coarsish impressions placed upon shallow indistinct striw, the impressions finer towards the 
suture, interstices smooth, in the male a little narrower and more parallel in form than in the female ; 
prosternum subhorizontal, the apex slightly produced and broadly rounded, distinctly margined on each 
side within, subrugulose; mesosternum very feebly excavated within ; ventral segments with scattered 
longitudinal wrinkles. 
Length 8-10 millim. (¢ 9.) 
Hab. Muxtco, Tuxtla (Sallé); British Honpuras, Belize (Blancaneauz); GUATEMALA, 
Cerro Zunil, Capetillo (Champion), Yzabal (Sallé); Panama, Volcan de Chiriqui 
(Champion). 
A common species in Chiriqui; and found by beating the still attached withered 
leaves of fallen forest-trees, and, more rarely, under loose bark. 
2. Isicerdes funebris. 
Elongate oval, subparallel, convex, black, shining. Head closely and rather coarsely punctured, the front 
and vertex smoother, the epistoma shallowly impressed on each side near the eyes ; prothorax strongly 
transverse, the sides narrowly margined, very feebly crenulate anteriorly, feebly sinuate before the 
base, anterior angles broadly rounded, hind angles subrectangular, transversely, broadly, and shallowl 
impressed just before the base, distinctly and rather closely punctured; elytra long subparallel, 
closely and not very coarsely punctate-striate, the interstices smooth and slightly convex towards the 
