CALOPTERON. 13 
Section A ii. Thorax with a simple carina; antenne pectinate in the male, acutely 
serrate in the female ; three raised lines on the elytra. 
15. Calopteron triste. (Tab. I. fig. 21, 2.) 
Nigrum, elongatum, elytris lineis tribus elevatis, intervallis transversim reticulatis; prothorace carinato, lateribus 
flavis sinuatis. 
Mas antennis flabellato-pectinatis, abdominis segmento penultimo profunde exciso. Long. 10 millim. 
Femina antennis acute serratis, abdominis segmento apicali integro. Long. 11 millim. 
Hab. GUATEMALA, Calderas, Duefias (Champion). 
The elytra are very thin, and usually shrivelled when dry; but it is a very easily 
recognized species if the three raised nervures are noticed, together with the entirely 
black elytra (which are gradually widened to the middle of their length), the thorax 
with yellow sides, and the undivided carina. C. tristis, Waterh. (Trans. Ent. Soc. 1878, 
pp. 99 & 106; Illust. of Typ. Col. in Coll. B. M. p. 24, t. vi. fig. 5), is a different species, 
for which he has made a genus, Hurrhacus, allied to Emplectus. 
The figure represents a Calderas specimen. 
16. Calopteron rufulum. (Tab. II. figg. 8 3,9 2.) 
Rufo-testaceum, abdomine, pedibus (basi excepta), antennis, prothoracis carina et scutello nigris ; elytris tricos- 
tatis, intervallis scalariformibus ; prothoracis lateribus fortiter bisinuatis. ¢ 9. 
Mas antennis flabellato-pectinatis. Long. 6-9 millim. 
Femina antennis acute serratis. Long. 9-11 millim. 
Hab. Mexico, Cordova (Sallé); Guaremaua, Zapote, San Gerdénimo, Cubulco, Cubil- 
guitz (Champion) ; Costa Rica, Caché (Rogers). 
M. Bourgeois has informed me that this is the C. rufulum of Dejean’s Catalogue ; and 
I adopt the name for convenience. It must not be inferred that I have myself com- 
pared it, nor that I have seen specimens from the locality there given, viz. Carthagena. 
Two specimens in Sallé’s collection have a minute black spot at the apex of the elytza. 
The peculiar form of the thorax is well shown in our figure of the female ; but it is fre- 
quently as strongly indented in the male. 
The male figure is a Zapote specimen; the female from Cordova. 
Section A iii. Elytra parallel, with four raised lines; thorax with a simple carina ; 
antenne often pectinate, at least in the male. 
17. Calopteron pennatum. (Tab. II. figg. 11 2,12 ¢.) 
Calopteron pennatum, Bourgeois, Ann. Soc. Ent. Fr. 1879, p. 32°. 
Hab. Mexico, Cordova (Sallé!); GuateMata, Chiacam, Cahabon (Champion); Nica- 
racua, Chontales (Janson); Costa Rica (v. Patten). 
The male, fig. 12, is from San Gerénimo; figure 11 is of a female from Guatemala. 
Var. Minor, elytris triente basali tantum flavo, intervallis ad apicem irregulariter clathratis subrugosis. 
Hab. GuateMaLa, San Gerénimo, Balheu (Champion). 
