CISTELA. 455 
armed with scattered irregular teeth within ; the central sheath broad, 
apex, the latter strongly hooked above. (Fig. 24 a.) 
Length 7-8 millim.; breadth 33-4 millim. (3 @.) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
abruptly narrowed towards the 
One female and four male examples. This species differs from C. nigricornis in the 
antenne in the male being more strongly serrate, and in the more coarsely punctate- 
striate elytra; the armature of the male is totally different in structure, and the tarsi 
of the anterior and intermediate legs are dilated in this sex. 
7. Cistela delitescens. (Tab. XX. figg. 25, 25a.) 
Oblong ovate, moderately convex, piceous-brown, opaque, thickly clothed with short pubescence. Head finely 
and sparsely punctured ; eyes comparatively large in the male, smaller and more widely separated in the 
female ; antenne in the male reaching to the middle of the elytra, and with joints 4-10 moderately 
serrate within, in the female slender and rather shorter, and with joints 4-10 only a little widened towards 
their apex, fusco-ferruginous, the third joint short, and only a little more than half the length of the 
fourth in either sex ; prothorax transverse, the sides rounded and converging from a little before the base, 
the hind angles subrectangular, the basal fovex feebly indicated, the disc shallowly impressed in the 
middle behind, the surface very finely and somewhat closely punctured ; scutellum finely and closely 
punctured ; elytra a little rounded at the sides, very finely and shallowly punctate-striate, the interstices 
almost flat and very minutely and somewhat closely punctured; beneath finely and rather closely punc- 
tured, the metasternum more coarsely so; anterior and intermediate cox narrowly separated ; meta- 
sternum rather short ; legs long and slender, stouter in the male, fusco-ferruginous ; the first joint of the 
hind tarsi long, about the length of the following joints united. 
dg. Anterior tarsi with the three basal joints and the intermediate tarsi with the first joint dilated, the first - 
joint of the anterior pair very broadly so; intermediate tibie curved. Fifth ventral segment slightly 
emarginate in the middle. The lateral lobes of the last ventral segment broad at the base, very abruptly 
constricted about the middle, the narrower apical portion long and bent abruptly inwards (forming a 
strong hook), the latter clothed with coarse hairs; the central sheath broad, acuminate towards the 
apex, the latter slightly hooked. (Figg. 25, 25a.) 
Length 52-63 millim.; breadth 23-3 millim. (¢ 9.) 
Hab. GuatEMALA, Duefias 5000 feet (Champion). 
Six examples. This and the following species have the anterior tarsi in the male 
strongly dilated. Both are distinguished from C. chiriquensis by their duller surface 
and much more finely punctured elytral strie; the cedeagus of C. delitescens closely 
resembles that of C. cheriquensis. 
8. Cistela occulta. (Tab. XX. fige. 26, 26a,¢.) 
Closely resembling C. delitescens and differing as follows :—Fusco-ferruginous ; the eyes larger and more 
narrowly separated ; the antennw (3) much longer (reaching beyond the middle of the elytra), joint 3 
short, only a little longer than 2, and about one third of the length of 4, joints 4-10 much more elongate 
and more strongly serrate, ferruginous ; prothorax more densely and less finely punctured, the disc deeply 
canaliculate behind ; elytra less opaque, more deeply and more coarsely punctate-striate, the interstices 
rather more convex and more distinctly punctured ; legs ferruginous; the rest as in C. delitescens. 
3. Tarsi and tibiee formed as in C. delitescens. Fifth ventral segment slightly emarginate in the middle. 
The lateral lobes of the last ventral segment widely separated at the base, simply curved, clothed with 
scattered hairs; the central sheath broad, the apical portion acutely elongate-triangular in shape, but 
with the apex rounded. (Fig. 26.) 
Length 64 millim.; breadth 23 millim. (¢.) 
