60 RHYNCHOPHORA. 
Two specimens from Costa Rica and four from Ecuador, one only in good condition. 
Larger than J. leptopus, the white markings on the prothorax reduced to a narrow 
transverse line and those on the elytra to a few small spots. 
COPTUROMIMUS. 
Copturomimus, Heller, Abhandl. Mus. Dresd. no. 11, p. 63 (1895). 
Dr. Heller referred two species to this genus, which is easily separable from 
Copturus by the bare, impunctate, obliquely strigose area on the anterior femora, a 
character not mentioned in his diagnosis. Various other forms are now added, 
agreeing in the following characters :— 
Joint 2 of the funiculus elongate, much longer than 1; meso- and metasternum flattened or transversely 
depressed between the middle cox, the mesosternum without oblique ridges, the metasterna] depression 
sometimes foveiform ; femora unidentate beneath, the posterior pair carinate or not externally, sometimes 
(C. ochreonotatus) reaching a little beyond the apex of the abdomen, the anterior pair with a conspicuous 
obliquely strigose area on their front face. 
Copturomimus as thus defined includes most of the Central-American forms with a 
coarsely or finely strigose area on the anterior femora, the others being here placed 
under Copturomorpha. This peculiar sculpture of a portion of the surface of the 
anterior femora has been noticed by Kirsch in Copturus musicus*, and he suggests 
that it may be a stridulating-organ. It seems more likely, however, to judge from the 
position of the antenne in various unset specimens before me, that it is used for cleaning 
the sensitive portions of the antennal club. C. ce@ruleotinctus has long, fine, projecting 
hairs on the anterior tarsi of the male. 
Meso- and metasternum flattened between the middle coxe. 
Posterior femora reaching beyond the apex of the abdomen ; all the tibiz more 
orless dilated . 2... 2. ee ee ee ee ee ee ee). «Species 1. 
Posterior femora not reaching beyond the apex of the abdomen; the tibiz not 
or feebly dilated. 
Elytra with the alternate interstices costate . . . . . . + « + «© « + ©Species 2, 3. 
Elytra with flattened elytral interstices . . . . 1 . . « . « « « . Species 4-8. 
Meso- and metasternum depressed between the middle coxet . . . . . . . Species 9,10. 
1. Copturomimus ochreonotatus, sp. n. (Tab. IV. figg. 18, 18 a.) 
Subovate, black, the tarsi ferruginous ; the prothorax with narrow, ochreous and fulvous scales scattered along 
the sides and middle, and with three small patches of coarser scales at the base ; the elytra with a broad, 
dense, transverse patch at the base (extending outwards to the sixth stria), a small spot at the middle of 
the second interstice, a larger one on the seventh and eighth interstices at about one-third from the apex, 
and a short streak on the suture near the tip, ochreous, the rest of their vestiture close and almost 
entirely blackish-brown ; the under surface and the basal half of the femora with scattered white scales, 
* Berl. ent. Zeitschr. 1875, p. 248. 
7+ The Colombian (. ochrofasciatus, Heller, belongs to this section. 
