148 
ashy stripe on each side having a blackish line in its middle, 
sides below this with a shining black stripe. Elytra moderately 
elongate, and scarcely tapering from their base to near their apex, 
whence they are distinctly narrowed to the apex, the latter 
broadly truncated, the sutural angle of the truncature scarcely 
distinct, outer angle produced into a longish and acute tooth ; 
the surface is convex, setose, and moderately punctured, partly 
in rows ; the colour is grey sprinkled with blackish spots, and 
ornamented with large purplish-blackpatches — namely, one semi- 
circular, over the scutellum, a second angular, on the side near the 
base, a third of zigzag outline, beyond the middle, and a fourth 
quadrate, close to the apex ; all these spots are margined with 
pinkish tawny, but the apex is narrowly edged with grey. Body 
beneath tawny; abdomen grey in the middle and spotted with 
black on the sides, the apical segment shining black with two 
basal greyish spots. Legs black, with grey and tawny-grey rings ; 
fore tarsi simple in both sexes, but the legs of the male are visibly 
stouter than those of the female. 
(S $ . Terminal ventral segment sinuate-truncate, angles pro- 
duced into short and not very acute spines : dorsal segment 
obtuse. The whole segment is much longer in the female than 
in the male. 
Common on felled trees in the forest throughout the Amazons 
region. Also taken at Cayenne. An allied but quite distinct 
species is found in Venezuela*. 
3. Colohothea decemmaculata, n. sp. 
(7. eloiigata, angustata, postice flexuoso-attenuata, carneo-cinerea 
maculis oblongis lateralibus nigro-velutinis Isete ornata : thorace 
utrinque paulo ante basin tumido, deinde paulo constricto ; pedibus 
rufis, griseo annulatis. Long. 5-6^ lin. d $ • 
Head reddish, cheeks and vertex each with a pinkish-ashy 
* Colohothea maculicollis (Chevrol. MS. sec. Dom. Deyrolle). Eloiigata, 
parallela, modice convexa. Caput sordide cinereum. Antennae vix 
corpore longiores ( $?), fuscae, articulis 4*° 6to et 9® cinereo annu- 
latis. Thorax paulo ante basin tuberculo majore conico armatus, 
sordide cinereus (lateribus inclusis), medio dorsi macula oblonga velu- 
tino-purpurea ornato. Scutellum velutino-purpureum, medio macula 
parva cinerea. Elytra imprimis paulo, apices versus citius attenuata, 
liexuoso-truncata, angulis suturalibus nullis, exterioribus spinosis; supra 
punctata, grisea, fusco maculata, utrinque maculis majoribus velutino- 
purpureis tribus ornata, prima parva laterali ante medium, secunda 
magna triloba pone medium, tertia obliqua valde angulata ante apicem, 
totis carneo-fulvo partim marginatis. Corpus subtus fulvo tomentosum, 
abdomine nigro lateribus fulvo maculatis. Pedes nigri, fulvo annu- 
lati. Foeminse (?) segmento ultimo veutrali truncato angulis vix pro- 
ductis, dorsali obtuso. Long. 5^ lin. Hah. V^enezuela. Coll. Bates. 
