222 HETEROMERA. 
1. Bycrea villosa. (Tab. X. fig. 5,3.) | 
Bycrea villosa, Pascoe, loc. cit. p. xii; E. Dugés, loc. cit. p. 51, t. 4. figg. 1-25 *. 
Hab. Mextco1, Matamoras (coll. F. Bates), Izucar, Puebla (Sallé), Guanajuato 
(Dugés*, Sallé), Tupataro (Dugés 2). 
SCAPTES. 
Scaptes (Eschsch.), Dej. Cat. 8rd edit. p. 215. 
Mentum transverse, rounded at the sides, broadly arcuate emarginate in front, the anterior angles produced and 
subacute; ligula strongly exserted ; labial palpi stout, the last joint ovate; maxillary palpi stout, the last 
joint subsecuriform ; mandibles broad, feebly cleft at the apex; antenne very short, only reaching to the 
middle of the prothorax, setose, the joints closely articulated, the two basal joints stout, the second joint 
much shorter than the first, the third joint longer and thinner than the second, joints 47 short, about equal 
in length, and slightly widening outwardly, joints 8-11 distinctly wider and strongly transverse, the 
eleventh joint slightly narrower than the tenth and rounded at, the apex; head very deeply sunk into the 
prothorax, the epistoma deeply but not broadly emarginate and not defined from the front, the antennary 
orbits reaching halfway across the coarsely faceted eyes, extending outwardly, and meeting the anterior 
angles of the prothorax (the eyes appearing at first sight to be completely divided); prothorax closely 
embracing the elytra, broad, transverse, the apex very deeply arcuate emarginate, the base rounded in 
the middle and broadly produced, between which and the posterior angles sinuate, and closely ciliated 
(the fringe of scaly hairs hiding the base of the elytra); scutellum not clearly defined; elytra broad, the 
width of or scarcely wider (S. cayennensis*) than the prothorax at the base, widest about the middle, 
thence rapidly narrowed to the apex, the base obliquely emarginate for the reception of the centre of the 
base of the prothorax and the inner third distinctly margined; legs short, coarsely asperate and setose ; 
tibie rather slender, the anterior pair slightly flattened and with the outer apical angle produced into a 
very strong broad tooth, the apex of which is bluntly rounded (as in certain South-American Phaleria) ; 
tibial spurs strong, rather short; tarsi spinous beneath, similar in both sexes, the first joint of the 
posterior pair a little longer than the second and third united; epipleure distinct to the last ventral 
suture, very narrow and almost obsolete beyond ; prosternum broad, declivous behind, the apex slightly 
produced ; middle cox widely separated, the mesosternum broadly but not deeply emarginate ; intercoxal 
process broad, rounded at the apex; trochantin distinct; form broad ovate, the upper surface densely 
clothed with scales and very short scattered decumbent hairs. Winged. 
This genus, undescribed till now, contains two Tropical-American species, one of 
which appears to be widely distributed and extends into our country as far north as 
Northern Mexico. The two species are closely allied; both are of small size, broad 
ovate form, the upper surface densely clothed with grey or brownish scales, the anterior 
* Scaptes cayennensis. 
Scaptes cayennensis, De}. Cat. 3rd edit. p. 2151. 
Narrower and more shining than S. squamulatus; dark reddish-brown; the upper surface (when denuded of 
scales) not so regularly punctured; the elytra (in the Cayenne example) very feebly or obsoletely costate 
and with irregular rows of small granular elevations, the surface clothed with light brown or cinereous 
scales and with numerous decumbent hairs; beneath shining, closely and muricately punctured; the rest 
as in S. squamulatus. 
Length 43 millim. 
Hab. Guiana, Cayenne’ (coll. F. Bates); ? Curtz (coll. F. Bates). 
Two worn examples in Mr. F. Bates’s collection differ as above from S. squamulatus ; the locality “‘ Chili” 
seems to me very doubtful. 
