153 
fasciis duabus interruptis lituraque subapicali nigris. 
lin. c?. 
Long. 4 
Head pinkish grey, occiput with two stripes and a posterior 
spot black. Antennse pitchy black ; bases of joints grey, those 
of sixth, eighth, and tenth joints whiter. Thorax widened behind 
the middle, and forming there an acute prominence, constricted 
behind, Surfaee pinkish grey, with a dorsal vitta (constricted 
behind the middle), a lateral stripe, and two fine lines on each 
side blaek. Scutellum black, with a minute grey spot at the 
base. Elytra gradually narrowed from base to apex, sinuate- 
truncate, with the sutural angles produced into a short, the ex- 
ternal into a long tooth : surface sparingly clothed with fine 
setse, punctured, grey, sprinkled with pinkish patchy spots, a 
short stripe under each shoulder (continuous with the lateral 
thoracic stripe), a very short streak proceeding from each angle 
of the scutellum, a spot on the disk near the base, a short fascia 
behind the middle, and a curved letter near the apex black. 
Body beneath grey. Legs grey, ringed with black : fore tarsi 
in the 6 moderately dilated and fringed. 
S . Terminal ventral segment strongly elevated towards the 
tip, the elevation surmounted by a curved ridge, leaving a smooth 
concave space within; second segment strongly contracted in 
the middle. 
Banks of the Tapajos; one example. This and the preceding 
species are closely related to a Venezuelan species of much larger 
size *. 
9. Colohothea obtusa, n. sp. 
C. modice elongata, postice attenuata, fusco-nigra, cinereo maculata ; 
thorace brevi, pone medium pamm tumidulo, deinde leviter con- 
* Colohothea lineola (Chevrol. MS. sec. Dom. Deyrolle).-— Elongata, pos- 
tice sensira attenuata, grisea, fulvo nigroque variegata. Caput nigricans. 
Antennae nigricantes articulis basi griseis. Thorax usque ad medium 
dilatatus, lateribus pone medium valde acute tuberculatis, deinde basin 
versus sinuato-attenuatus; supra griseus fulvo variegatus, medio vitta 
postice dilatata, altera lateral! lineolisque duabus intermediis nigris. 
Scutellum postice angustatum, nigrum, macula grisea. Elytra gra- 
datim attenuata, truncata, angulis suturalibus simplicibus, exterioribus 
valde productis, humeris prominulis parum obliquis; supra breviter 
setosa, punctata, grisea, punctis nigris maculisque carneo-griseis varie- 
gata, utrinque maculis angulatis tribus quarum una pone medium 
major. Corpus subtus cinereum : abdominis medio et lateribus nigro 
maculatis; segmento apicali nigro, basi cinereo raaculato. Pedes cinerei, 
nigro annulati : tarsis anticis maris valde dilatatis et ciliatis. Maris 
segmentum ultimum ventrale simplex, late irregulariter truncatum, an- 
gulis baud productis ; dorsale obtusum : foeminae segmentum ultimum 
ventrale angulis dentatis; dorsale magis attenuatum, apice breviter 
emarginatum. Long. 6^-8. S $ . Hah. Venezuela. 
Q 
