56 -LONGICORNIA; 
3. Mecometopus hogei. : 
M. olivaceo et cesopo coloribus simillimus, eylindricus ; capite nigro-olivaceo, antice minus elongato at fronte 
plana; thorace. fulvo-olivaceo, antice et disco obscuriore, oblongo-ovato, linea dorsali paullulum trans- 
verse rugato ; scutello olivaceo-nigro marginibus cinereis; elytris basi paullo gibbosis, apice truncatis et 
extus dentatis, basi usque ultra medium nigro-olivaceis macula utrinque obliqua subhumerali, altera 
simili pone scutellum juxta suturam, lineolaque transversa mediana cinereo-olivaceis, triente apicali fulvo- 
olivaceis apice ipso obscurioribus; meso- et metasternorum lateribus abdomineque flavescenti-albis; antennis 
filiformibus, corporis dimidio paullo longioribus, nigris ; pedibus nigris, femoribus modice incrassatis, 
posticis apice bispinosis, femoribus posticis rectis, haud dilatatis. 
Long. 5-6 lin. 
Hab. Mexico, Paso del Macho (Hége). 
Distinct from WU. esopus (which it greatly resembles in colours, although the markings 
towards the base of the elytra are different) by the much shorter forehead, longer 
antenne, the absence of elytral ridges, and the undilated tibie. It also greatly re- 
sembles WV. olivaceus (L. & G.), which has a similar short forehead; but the markings 
on the basal half of the elytra are very different from those of this species. I. centurio, 
a similarly coloured but very distinct species, from South Brazil, agrees also with it in 
the shorter forehead. The plane surface of the forehead and the comparatively slender 
hind femora decide me to place these three species in Mecometopus rather than in 
Neoclytus, to which genus they might be referred if attention were not paid to this 
character. The two genera, however, graduate into each other, as is the case with all 
the generic groups into which modern coleopterists have attempted to divide the Clytint. 
4, Mecometopus ion. 
Clytus (Rhopalomerus) Jon, Chevr. Ann. Soc. Ent. Fr. 1860, p. 496", t. 9. f. 9. 
Neoclytus Ion, Bates, Trans. Ent. Soc. 1872, p. 186 *, 
Hab. Muxico, near the city (Sallé1); Nicaragua, Chontales (Belt *). 
As stated in my enumeration of the Longicorns of Chontales (Joc. cit.), the single 
specimen taken by Belt differs from Chevrolat’s description and figure by an addi- 
tional short yellow longitudinal stripe at the base of the elytra. A similar stripe lies 
also nearly parallel on the epipleura near the shoulder; and the antenne appear shorter 
and thicker. It is impossible from a single specimen to decide whether these differences 
indicate a distinct species. The length and flatness of the forehead and the slenderness 
of the hind legs bring the species within the definition of the genus Mecometopus. 
5. Mecometopus macilentus. 
Mecometopus macilentus, Bates, Trans. Ent. Soc. 1872, p. 187. 
Hab. Nicaragua, Chontales (Belt). 
With the elytral markings, colours, and legs of the typical Mecometopi, this species 
differs by its shorter and broader forehead. Its position, however, seems more natural 
here than in Neoclytus. 
