COLEOPTERA. 
73 
Tribotropis (Ectatotropis) conicollis, Jekel. 
Parum elongatus , niger , tomento infra dilute viridi-lutescente , supra late- 
ribus obscuriore, dorso dense albido mixto tectus ; rostro basi parum 
angustata transversim impresso , disco anguste longitudinaliter depresso , 
cum carina angusta obsoleta in froute valde convexa evidentius con- 
tinuata alteraque intra-laterali utrinque obsoleta ; capite basi lineolis 
duabus obsoletis obscure viridibus ornato ; thorace subconico, apice 
lineolis duabus maculaque basali utrinque nigricantibus punctoque 
laterali ante medium albido ornato; scutello anguste subquadrato , 
albido ; elytris subparallelis , disco longitudinaliter paullo deplanatis, 
singulo callo infra-basali alteroq-ue ante-apicali maculaque prope 
medium nigricantibus , punctis lineolisque prcesertim postice et lateri- 
bus viridi-fuscescentibus ornatis ; medio abdominis longitudinaliter 
annuloque infra medium femorum nigro-denudatis. 
S Antennis corpore dimidio longioribus , articulis 7 et 8 funiculi apice 
obsolete albidis. 
9 Corpore latiore; rostro breviore; antennis basin elytrorum superanti- 
bus, articulis 7 et 8 funiculi albido-tomentosis. 
Longit. 9 lin. — 20 millim. 
Latit. hum. lin. = 6 millim. 
Patria: Cayenna: Dom. Dupont. Para: Dom. Bates. 
Closely allied in general coloration and outline to Ptychoderes virida- 
nus, Phlceotragus annulicornis and prasinatus, Sch., being a little more 
depressed than the former, hut much more elongated in the head, rostrum 
and legs, and, in these characters, approaching much nearer to the 
two others, especially to the latter, with which it genetically agrees in the 
want of a carina on the rostrum laterally, and the slenderness and elongation 
of the antennas (but in a stronger degree) in the males. 
Head longer than broad posteriorly, somewhat produced behind the 
eyes, convex on the forehead, which is conically narrowed towards the ros¬ 
trum, but not much narrower than that part; distantly punctate under¬ 
neath. Eyes widely ovate, longitudinal, subobliquely truncate anteriorly 
at the inflected sides. Rostrum somewhat longer than the head, flat 
above, shallowly depressed along the disc, with a longitudinal ridge very 
L 
