264 ° SUPPLEMENT. 
the fifth, besides a minute one on the sixth joint; spines in Psyrassa existing only on 
the third and fourth joints. It would belong therefore to Stizocera. 
4. Peribeum reticolle. (Tab. XVIII. fig. 6.) 
Nigro-fuscum ; elytris, antennis pedibusque obscure castaneis, capite supra thoraceque crebre alveolato-punctatis, 
hoc sat elongato, lateribus squaliter rotundatis ; scutello cinereo-hirto ; elytris apice obtuse truncatis, supra 
erecte hirsutis sat crebre (versus basin aspere) punctulatis ; pedibus hirsutis, femoribus posticis minus 
abrupte clavatis, tibiis extus unicarinatis ; antennis (@ ) articulo 3° carinato, scapo grosse punctato, art. 
3°-5™ apice spinosis, . 
Long. 5 lin. @. 
Hab. Muxico, Ventanas, Tres Marias Islands (Forrer). 
Allied to P. dbimaculatum, and forming with that, and probably other species, a group 
or distinct genus, characterized by the alveolate sculpture of the thorax. In P. bimacu- 
latum, however, we have an approach to the thoracic sculpture of the typical Peribwa 
in the smooth dorsal space or callus, besides the more abruptly clavate femora. 
NEPHALIUS (p. 27). 
This generic name is inapplicable for our Central-American species and must 
be withdrawn; they should be all referred, at least provisionally, to Peribeum. 
Lacordaire’s suppression of Newman’s genus Nephalius, and its reconstitution under 
the same name for the reception of a different series of species, is a proceeding which 
is not likely to meet with permanent approval; and it is better at once to restore the 
name for the group which embraces Newman’s typical (or first) species, viz. WV. amictus, 
which has since received a new name, viz. Mephritus, Pascoe. Nephalius amictus, 
Newman, is nearly allied to, if not identical with, Pascoe’s type (Mephritus cinerascens). 
The true Mephalii, as far as at present known, are from South Brazil, at any rate 
none are contained in our collections from Central America. 
Nephalius rutilus (p. 27). | 
To the locality given, add :—Mexico, Playa Vicente (Sailé). 
Nephalius rugicollis (p. 27). 
To the localities given, add :—Panama, Taboga Island (Champion). 
MALLOCERA (p. 28). 
2. Mallocera amazonica. 
Mallocera amazonica, Bates, Trans. Ent. Soc. 1870, p. 278’. 
Hab. GuatemMaLa, Yzabal (Sallé).—Sovuta AMERICA, Amazons 1, 
One male example, agreeing perfectly with the type specimen (also a male) from Ega 
on the Upper Amazons. 
