ERCHOMUS. 299 
2. Erchomus debilis. 
Depressus, nitidissimus, piceus; marginibus dilutioribus, antennarum basi, pedibus elytrisque posterius rufis, 
abdomine apicem versus flavescente ; capite, thorace elytrisque levigatis; abdomine parce subtiliter 
punctulato ; prothorace basi truncato, angulis posterioribus rotundatis. 
Long. 23 millim. 
Hab. Guaremaua, El Reposo 800 feet (Champion). 
Allied to E. politulus, but the individuals are smaller, more depressed, and of more 
dilute coloration, and with the emargination in the middle of the last ventral plate in 
the male much smaller; the antennz are not quite so thick externally, but the penul- 
timate joints are evidently transverse ; the mesosternal carina is but slightly developed, 
being both short and little elevated. The resemblance to LE. distans also is great, but 
the different punctuation of the hind body readily separates the two. 
3. Erchomus strigosus. 
Depressus, nitidus, rufo-testaceus; antennarum apice, elytris, pectore abdomineque (apice excepto) nigricantibus ; 
thorace elytrisque impunctatis, abdomine parce obsolete punctato ; prothorace basi truncato, angulis pos- 
terioribus rotundatis. 
Long. 23 millim. 
Hab. Mexico, Guajuco in Nuevo Leon, Saltillo in Coahuila (Palmer), Cordova (Sal: 
GuATEMALA, San Gerénimo (Champion). 
Antenne slender, rather short, evidently thicker externally ; ninth and tenth joints 
slightly transverse. 
Although closely allied to E. dedilis, this is readily distinguished by the bright colour 
of the head and thorax. When examined with a high magnifying-power, the elytra are 
seen to be covered with dense very fine transverse scratches, which exist also on the 
thorax, though not quite so conspicuously. The number of dark joints at the extremity 
of the antenne varies in the few examples before me from one to four, and the amount 
of black with which the elytra are tinged is also apparently rather variable. 
4. Erchomus distans. (Tab. VII. fig. 3.) 
Coproporus distans, Sharp, Trans. Ent. Soc. Lond. 1876, p. 92°. 
Hab. Guatemata, San Gerdénimo and Balheu in Vera Paz (Champion); NicaRaeua, 
Chontales (Janson).—Soutn America, Amazons}, Bahia. 
The figure is taken from a San-Gerénimo specimen ; the coloration is more vivid than 
it is represented. 
5. Erchomus tachyporinus. (Tab. VII. fig. 4.) 
Parum convexus, nitidissimus, testaceus; elytris basi abdomineque segmento primo dorsali fuscis, antennis 
nigricantibus, basi et articulo ultimo testaceis; capite, thorace elytrisque levigatis, abdomine crebrius 
obsolete punctato; prothorace basi fere truncato, angulis posterioribus rotundatis. 
Long. 23 millim. 
2 QQ 2 
