138 Mr. G. C. Champion’s Notes on 
truncate at the apex; with rows of coarse transverse punctures, the 
interstices feebly convex. Beneath densely clothed with whitish 
pubescence. 
Length 6, breadth 23 mm. 
Hab. Mexico, “ Sierra de Durango” (coll. Pic), Almo- 
longa in Puebla (Hége). 
The above description is taken from a very clean fresh 
example in the “ Biologia” collection. This insect agrees 
very nearly with Pic’s definition of 7. mexicana. Compared. 
with 7. gorhami it is broader and less convex, the thorax 
is more strongly sinuate at the sides behind, and the 
colour and arrangement of the vestiture is very different. 
*Trichodesma truncata, n. sp. 
Elongate, nigro-piceous, the antennae and tarsi ferruginous; 
variegated with greyish-brown, fulvous, and whitish decumbent 
pubescence, intermixed with scattered semi-erect hairs and black 
setae, the latter clustered into three small oblong fascicles on the 
third elytral interstice, the fulvous pubescence condensed into 
several spots or streaks about the base, middle, and apex of the 
elytra, and a large, common, saddle-shaped, subapical fascia (the 
pubescence here becoming whitish on the second interstice), the 
whitish pubescence forming a scutellar spot. Thorax arcuato- 
dilatate anteriorly, strongly sinuate at the sides behind, densely 
granulato-punctate, the dorsal hump large and subangular. Elytra 
elongate, parallel, much wider than the thorax, sinuato-truncate 
at the apex, the sutural angles sharp; with rows of closely-packed 
coarse transverse punctures, the interstices narrow and conspicuously 
granulate. Beneath pubescent, very densely punctulate, with 
scattered intermixed slightly coarser punctures, the spaces occupied 
by the latter bare, giving a mottled appearance to the surface. 
Length 5, breadth 24 mm. (? 3.) 
Hab. GUATEMALA, Duefias (Champion). 
One specimen, worn, but easily recognisable by the 
sinuato-truncate apex of the elytra, the pallid saddle- 
shaped subapical fascia, the white scutellum, the con- 
spicuously granulate upper surface, and the mottled 
vestiture of the ventral surface. The non-dentate sides 
of the thorax separate 7’. truncata from T. armata and the 
truncate apex of the elytra from 7’. pictipennis, 
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