G. it. Ent., 15 (63): 1-14
March 2018
Due nuove Typhloreicheia Holdhaus, 1924
della Sardegna centrale, campionate in ambiente ipogeo,
e definizione di due nuovi gruppi di specie
(Coleoptera, Carabidae, Scaritinae)
di
P. MAGRINI & C. ONNIS
Abstract - Two new Typhloreicheia Holdhaus, 1924 from central Sardinia, collected in hypogean environment, and definition of two new species groups (Coleoptera, Carabidae, Scaritinae) - Two new Sardinian species from Sarcidano (a cave near Isili, CA) and Barbagia Seulo (a cavity of Mount Arcuerì, near Seui, OG), respectively, Typhloreicheia dewaelei n. sp. and Typhloreicheia nivis n. sp., are described and illustrated. The former is easily distinguished from the already known species for the shape of the aedeagus and its copulatory lamella, the narrow and parallel-sided elytra with numerous small marginal denticles, and other characteristics, which allow to attribute it to a new group of species, that we name the "parallela group", after the first species with these characteristics described: T. parallela (Holdhaus, 1924). The latter is singular for its aedeagus with very narrow, conic, downward bent apex, and very simple copulatory lamella made of a wide lamina with rounded apex; further, integuments are very light, the pronotum is particularly rounded, the elytral marginal groove is wide with denticles up to the apex, elytral striae somewhere vanish; also for this taxon, which presents such characteristics all together, we suggest the creation of a new group of species, the "nivis group", at present monospecific.
