N. 29: P. Gnaspini

G. it. Ent., 5 (29): 391-395

December 31, 1991

A new cavernicolous Ptomaphagus (Coleoptera, Cholevidae)

from Argentina

by

PEDRO GNASPINI

Abstract - Ptomaphagus picunche n. sp. is described from caves from the Neuquén Province, Argentina. This is the first southern South American species of the tribe Ptomaphagini, and does not belong to the group of described South American Ptomaphagus. Although it does not show striking troglomorphic features, it is a possible troglobite because it inhabits caves in a desertic region, and might be restricted to the subterranean environment.

N. 28: P. Gnaspini

G. it. Ent., 5 (28): 325-340

August 31, 1991

Brazilian Cholevidae (Coleoptera)

with emphasis on cavernicolous species

I. Genus Dissochaetus

by

PEDRO GNASPINI

Abstract - The cavernicolous species of the genus Dissochaetus were surveyed. One new species was collected and is described - Dissochaetus vanini sp. n., from several caves from Minas Gerais, Paraná and São Paulo States - type locality: Gruta da Lacinha, Paraná. Four Dissochaetus species were collected both in caves and in the epigean environment: D. hetschkoi, D. murrayi, D. villosus and D. vanini; and one (D. maculatus) was collected only in the epigean environment. Colonization of caves is discussed, and dispersion seems to be mainly by epigean routes. A checklist of all known species and collecting localities is given.