Lougicornia of Mexico and Central America. 147 



(//. //. Smith). Two examples only, females. The 

 genus is an addition to the Mexican fauna. 



Tetropium guatemalanum, n. sp. 

 T. vclutino (Lee.) affine, gracilius, totuni nigrum, parum nititlnm, 

 elytris opacis ; nigro-pilosum, elytris subtiliter inciimbenti-pube- 

 scentibiis. Caput piiiictatuni, inter antennas canaliculatum, vertice 

 medio dcpresso. Thorax relative parvus, in medio rotundato-dila- 

 tatus, postice niagis quam antice angustatus, 'supra ina;qualis, 

 prsecipue ad latera aspere punetulatus. Elytra anguste elongata, 

 densissime et subtilissime punctulata, utrinque obsolete bicostulata. 

 Subtus cum pedibus griseo-pubescens. Long. 14 millim, 5 ?. 



Uah. Guatemala, Tepan {Coiiradt). A single ex- 

 ample. 



Ilammaticherus qlahricoUis, Bates, Trans. Ent. Soc. 

 Lond., 1870, p. 251. 



Ihih. Mexico, Temax in North Yucatan (Gaumer), 

 Three examples, females. 



The Yucatan examples resemble the unique specimen 

 found by me on the Upper Amazons very closely, excei)t 

 that the 3rd and 4th antennal joints have dentiform 

 processes at their inner apices, of which there is scarcely 

 any trace in the type-specimen, and the spine at the 

 sutural apex of the elytra is a little longer. They are, 

 however, females, whilst the Amazons specimen is a 

 male, and the spines may be a sexual character, though 

 they are not so in the allied 1i . pUcatiis (Oliv.), from 

 which H. glabricollis differs in being much smaller, 

 nearly glabrous and shining above, having an extremely 

 fine grey pile on the elytra only, in the much less 

 prominent eyes and less deep and regular thoracic fur- 

 rows, and in the eyes having the basal, apical, and 

 sutural borders black. 



Aneflus cgliitdricollis, n. sp. (PI. Y., fig. 1). 

 Maxime elongatus, subcylindricus; piceo-fuscus, breviter griseo- 

 pubescens, supra nitidus, subtus cum pedibus densius pubescens. 

 Palpi ad apicem parum dilatati, truncati. Caput grosse aspere punc- 

 tatum, oculis minus convexis. Antennae ( ? '?) corporis dimidio baud 

 longiores, scapo scabroso-punctato, articulo 4to praecedenti dimidio 

 breviori, 3 — 7 ad apicem intus sat longe spinosis, 4 — 9 supra distiucte 



