146 Mr. H. W. Bates on the Longicorn Coleoptera 
streak or spot, followed by an ashy club-shaped streak near the 
suture, which reaches to the apex; the faint dorsal carine are 
speckled with grey and black, and the antenne and feet are 
spotted with brown and grey. The males are known by the 
enlarged basal joint of the fore tarsi. It varies much in the 
markings of the elytra, the subapical black spot and the apical 
ashy streak being both subject to become either enlarged in size 
or diminished so as to be scarcely visible. 
The species has a wide range, and the varieties do not appear 
to be restricted to localities, specimens before me from Panama 
not differing from others taken on the banks of the Tapajos and 
the Upper Amazons. It is a common insect on felled trees in 
new clearings throughout the Amazons region. 
2. Cidopeza leucostigma, u. sp. 
G. oblongo-elongata, fulvo-brunnea, nigro alboque variegata: elytris 
oblique sinuato-truncatis, ante medium macula suturali alba. 
Long. 7 lin. @. 
Head tawny, vertex with two black spots close to the inner 
margin of the eyes. Antenne reddish brown, second to fifth 
joints each with two whitish rings, the remaining joints (except 
the second) each with one pale rmg. Thorax uneven, tawny 
varied with dusky, and marked with four short and crooked 
black vitte. Elytra elongate-oblong, very long compared with 
the thorax, apex of each briefly sinuate-truncate ; surface punc- 
tured, some of the punctures in rows, and these latter each covered 
by a black spot, and emitting a short bristle ; the colour is tawny 
brown; beyond the middle is an undulated blackish fascia, 
and before the middle, on the suture, is a round white spot ; 
besides which there are a few white specks on the sites of the 
faint dorsal carine, and an irregular thin white fascia near the 
apex. Body beneath clothed with fine silky iron-grey pile, the 
sides of the abdomen spotted with tawny ashy. Legs reddish ; 
thighs prettily variegated with grey ; tibiz and tarsi ringed with 
grey. Ovipositor of the female short. 
One example only, taken on a fallen bough in the forest at 
Ega. It seems to be closely allied to the South-Brazilian Try- 
panidius litigiosus of collections, which is also an Cidopeza*. 
* C£dopeza litigiosa. Oblongo-elongata, brunnea, nigro canoque varie- 
gata. Caput obscure fulvum, vertice nigro bimaculato. Antenne 
brunnez, articulis basi cinereis, primo cinereo annulato. Thorax supra 
ineequalis, brunneus, disco nigro quadrimaculatus, lateribus maculis 
nigris griseo cinctis. Elytra oblonga, postice attenuata, apice oblique 
truncata; dorso passim irregulariter punctata haud setosa, brunnea, 
maculis nigris sparsa quarum duabus majoribus pone medium sitis, et 
strigis canis varia precipue apud medium et ante apicem. Corpus 
subtus tomento tenui griseo vestitum, abdominis lateribus fulvo-griseo 
