TARPELA. 299 
Numerous examples. Compared with 7. atra this species will be known by the head 
and thorax being still more coarsely and confluently punctured; the antenne longer, 
the third joint comparatively much longer; the short longitudinal impressions on the 
elytra placed closer together, and confluent and very deeply impressed at the base; the 
femora not so closely punctured; the flanks of the prothorax very coarsely strigose (not 
coarsely and confluently punctured); the epipleure distinctly narrowed at the last 
ventral suture, &c. 
21. Tarpela socia. (Tab. XIII. fig. 5, ¢.) 
Elongate ovate, moderately convex, subparallel, the head and prothorax dark bronze, the elytra brownish-bronze 
or dark castaneous, slightly shining. Head coarsely, closely, and irregularly punctured, the punctures 
here and there confluent between the eyes, shallowly, but broadly, transversely impressed in front, the 
epistoma comparatively long; antenne long, reaching to the middle of the elytra in the male, the third 
joint very long, the joints 8-10 a little swollen outwardly, the apical joint in the male curved and consi- 
derably longer than the tenth; prothorax broader than long, narrowly margined, the sides somewhat 
rounded about the middle, slightly and almost equally narrowing before and behind, a little sinuous before 
the base, and abruptly so before the apex, and here and there irregularly crenulate anteriorly, the anterior 
angles a little produced and directed outwards, the apex broadly, but not deeply, emarginate, the base 
feebly bisinuate, the hind angles subrectangular, the basal fovee shallow, the disc usually with a shallow 
curved transverse impression before the base and sometimes with traces of a smooth central line, the 
surface very closely and coarsely punctured, the basal half of the dise rather more sparingly so; elytra 
considerably wider than the prothorax, long, subparallel, broader in the female, the humeri a little produced 
in front, with rows of rather coarse, closely placed, short, longitudinal impressions, the impressions rather 
deeper and coarser towards the sides and base, finer and shallower behind, and confluent on the basal 
fourth of the disc, the interstices almost flat, and exceedingly minutely and sparingly punctured ; tibie 
closely and roughly punctured, the femora more sparingly so; beneath more shining, sparingly, shallowly, 
and rather finely punctured, the sides of the metasternum more coarsely so, the flanks of the prothorax 
coarsely, shallowly, confluently punctured, the last ventral segment in the male pubescent in the middle ; 
prosternum declivous behind, the apex armed with a short, stout, conical tubercle, or transversely raised ; 
mesosternum moderately excavate; epipleure narrowed at the last ventral suture, thence narrowly 
extending to the apex. 
Length 10-15} millim.; breadth 4-63 millim. (¢ 9.) 
Hab. Mexico, Acapulco (fHége). 
Numerous examples. More shining than 7. oblonga; the antenne longer; the 
thorax relatively broader, not quite so coarsely punctured, and with much more 
prominent anterior angles; the elytra broader (especially in the female), and rather 
more pointed behind, and with the rows of impressions shallower at the base ; the under 
surface more finely and shallowly punctured, the flanks of the prothorax confluently 
punctured (not coarsely strigose), &c. 
92. Tarpela hispidula. (Tab. XIII. fig. 6.) 
Tarpela hispidula, Allard, Rév. Hélopides, L’Abeille, xiv. pp. 7 & 47’; Mittheil. der schweiz. ent. 
Ges. v. pp. 56 & 238%. 
Hab. Mextco (coll. F. Bates} ?). 
20Q 2 
