DIPLECTRUS. 133 
2. Femora slender, the anterior and intermediate tiliw with a smooth, sharp, angular 
projection at their inner apical angle, and the latter dilated towards the apex, in 
the male. 
2. Diplectrus armatus. 
Very elongate, parallel, densely and finely pubescent, opaque, yellowish-testaceous, the head and prothorax of 
a more rufous tint. Head very closely and finely punctured, the tips of the mandibles and the eyes 
black, the latter large (antenne missing); prothorax rather longer than broad, not very convex, the sides 
moderately rounded in front and converging behind, the hind angles prominent, the disc somewhat 
flattened, obsoletely longitudinally depressed on each side, and with a transverse deeper depression in the 
middle before the base, the surface punctured like that of the head; elytra very long, parallel, one and a 
half times the width of the prothorax, minutely and densely punctured, and with two vague cost on the 
dise and one close to the lateral margin (the inner one extending to about the middle and the others nearly 
to the apex), the suture also a little raised, the apices separately rounded ; beneath coloured as above, 
very densely punctured, and finely pubescent; legs very long, testaceous, the tibize and tarsi and the 
apices of the femora piceous. 
3. Anterior tibie armed at the inner apical angle with a smooth, sharp, triangular projection ; intermediate 
tibie a little curved, widened within from the middle, and becoming still broader outwardly, the inner apical 
angle produced into a smooth, short, triangular projection ; posterior tibie simple; fifth ventral segment 
very deeply and rather narrowly emarginate in the middle (the emargination extending nearly halfway 
across it) ; sixth ventral segment divided down the middle, and only visible through the emargination of the 
fifth ; the central sheath with an accompanying, separate, largely-developed spoon-shaped piece on each side. 
Length i9 millim. (¢.) 
Hab. Nicaraeua, Chontales (Belt). 
One male example, Much more elongate than D. nigripes, the elytra narrower and 
proportionately very much longer; the eyes large; the thorax less convex, not so 
strongly rounded at the sides in front; the elytra with more distinct coste; the 
pubescence of the under surface shorter and finer. The male characters are totally 
different :—-In the present species the femora are not thickened; the intermediate as 
well as the front tibiee have a sharp projection at the apex; the intermediate tibie are 
very much dilated towards the apex, the posterior pair being normal; and the fifth 
ventral segment has a large and deep emargination. 
The femora are not stouter than in the female of D. nigripes. | 
3. Femora slender, the tibie without angular projection at their inner apical angle, and 
not dilated (at least in D. annulicornis), in the male. 
3. Diplectrus annulicornis. (Tab. VI. fig. 2, ¢.) 
Elongate, subparallel, densely and finely pubescent, opaque, unicolorous, brownish-yellow or brownish- 
ochraceous. Head closely and not very finely punctured, with traces of a smooth central line, the eyes 
black. or piceous and moderately large, the maxillary palpi and the tips of the mandibles much stained 
with piceous; antenne black or piceous, the base of each joint flavous or testaceous, moderately long, 
tapering outwardly, joint 2 not half the length of 3, 3 a little longer than 4; prothorax rather longer than 
broad, narrow, the sides rounded anteriorly and converging behind, the base and apex rather strongly 
margined, the hind angles prominent, the disc a little flattened, shallowly transversely depressed in front 
and more deeply so behind, and with traces of a smooth median line or ridge, the surface densely and 
finely punctured, the punctuation becoming rugulose in places; elytra long, nearly twice the width of the 
RR 2 
