LONGICORNIA. 393 
LEIOPUS (to follow the genus Hleothinus, p. 155). 
Leiopus, Serville, Ann. Soc. Ent. Fr. 1835, p. 86. 
Sternidius, Leconte, Smithson. Misc. Coll. 265 (Class. Col. N. A. part 2, May 1873), p.838 (partim). 
Liopus, Horn, Trans. Amer. Ent. Soc. viii. (1880), p. 123 (partim). 
Excluding the species with hair-tufts on the elytra, this genus is taken here as defined 
by Dr. Horn. It comprehends those allies of the type Leiopus nebulosus of Europe 
which have a very narrow prosternum, a mesosternum of very moderate width, oblong, 
more or less narrowed behind, and hind tarsi of short or medium length, in which the 
basal joint is as long as or a little longer than joints 2 and 3 taken together. As thus 
defined, it comprises a small number of described species from the North Temperate 
zone of both the Eastern and Western hemispheres. 
The following species are somewhat aberrant, but agree better with Leiopus than 
with Nyssodrys or any other allied genus. 
1. Leiopus neviicornis. 
L. alphe (Say) affinis. Obscurius fuscus, thorace vittis duabus antice convergentibus atro-fuscis ; elytris post 
medium utrinque (fere sicut in L. alpha) fascia abbreviata valde obliqua atro-fusca antice cinereo-marginata ; 
antennis rufo-testaceis, articulis apice nigro-fuscis, 1°-8" griseo- et fusco-piperitis ; thoracis spina laterali 
acuta ante basin sita, lateribus anticis recte obliquis, post spinam sinuatis ; elytris apice breviter obtusis- 
sime truncatis, dorso guttis nonnullis nigro-fuscis lineatim digestis haud perspicue elevatis ; mesosterno 
quam in L. nebuloso et L. variegato distincte latiori postice valde angustato. 
Long. 3 lin. 
Hab. Mexico, Cordova (Sallé), Jalapa (Hoge). 
2. Leiopus —— ? 
Hab. Mexico, Ventanas (forrer). 
A single imperfect specimen of a species evidently very distinct from the foregoing. 
8. Leiopus { 
Hab. Mexico, Cordova (Sallé). 
Distinct from both the preceding. A single example, very imperfect. 
ALCIDION (p. 156). 
Alcidion eulophum (p. 156). 
To the locality given, add:—Mexico, Jalapa (Hége); GuaremaLa, San Gerdnimo, 
Purula, Las Mercedes, Panajachel (Champion) ; Costa Rica (Van Patten). 
Varies in size from 8 to 6 lines. A common species in Guatemala. 
BIOL. CENTR.-AMER., Coleopt., Vol. V., August 1885. 3e 
