Longiconiia Malay ana. 671 



MALLODONTINiE. 



M. Lacordairo, although not without hesitation, has 

 followed M. James Thomson in adopting this sub-family, 

 which has really nothing to distinguish it from the Bem- 

 phaninai, except the absence of denticulations or other 

 asperities^ on their legs. Even as a specific character, 

 this requires to be received with caution ; and it is even 

 admitted that " some have this character normally, some 

 accidentally." There are seven genera admitted, of 

 which only one, and that confined to a single species, is 

 in the collection. 



Genus. 

 Archetypus, Thorns. 



Aechetypus. 



Archetypus, J. Thomson, Essai &c., p. 319; Lacordaire, 

 Gen. viii. 150. 



Caput magnum ; mandibulce validas, horizontales, elon- 

 gatae, supra villosse, intus pluridentat^. OcuU in- 

 tegri, valde distantes. AntenncB corporis dimidio 

 vix longiores; scapo brevi, crasso; articulo tertio 

 hand scapo longiore; quarto et sequentibus sub- 

 Eequalibus, ultimo longiore et acuto. Prothoracc 

 trans versim subquadratus, apice la tier, angulatim 

 emarginatus, lateribus elevato-marginatis, integris. 

 Elytra breviuscula, depressa, mutica. Pedes bre- 

 viusculi, validi, Iseves; tarsi mediocres, articulo 

 basali duobus sequentibus conjunctim breviore. 

 Prosternum productum, apice utrinque incisum. Me- 

 sosternum latum, excavatum. Corpus glabrum. 



The female differs considerably from the above ; the 

 head, particularly, is much smaller, the mandibles are 

 short, and the prothorax is broadest at the base. The 

 antennge are only slightly shorter, but the legs are con- 

 siderably less robust. M. Lacordaire mentions a second 

 species from New Guinea. 



