Campodea (Campodea) grassii Silvestri, 1912

Campodea (Campodea) grassii Silvestri, 1912: 122, figs IX–XI.

Diagnosis (Silvestri 1912; Condé 1955b; Condé & Mathieu 1957; Bareth 2006)

Body length 4.0–7.0 mm; epicuticle with abundant microdenticles; short, thick clothing setae with a few apical barbs; antennae with 24–36 antennomeres; cupuliform organ with four to six simple olfactory chemoreceptors; sensillum of third antennomere in dorsal and ventral position; 1+1 ma, 1+1 lp macrosetae on metanotum; middle-sized, robust notal macrosetae almost completely covered with barbs; lp metanotal so short in adults that it is difficult or impossible to differentiate from thin pine cone marginal setae; one trochanteral sensillum; 1+1 la, 1+1 lp macrosetae on VI–VII urotergites, 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment; cerci covered in long thin macrosetae with small distal and thin barbs and a few clothing setae; small spermatozoid fascicles 35 μm in diameter and 10 μm wide, spiral filament turns around 2.5 ×, is 170–200 μm long and 1 μm in diameter.

Habitat and distribution

Soil-dwelling species with a clear preference for the upper layers of soil (O and A horizons). It is frequently found near springs or moisty sites and has been found in the entrance or twilight zones in caves (Sendra & Moreno 2004), and in MSS habitats (Sendra et al. 2017a). Distributed in the West-

Mediterranean region, it has been sampled in the Iberian and Italian peninsulas (Silvestri 1912; Condé & Mathieu 1957; Ramellini 2000; Sendra & Moreno 2004), in N Africa (Algeria; Condé 1947g); in Corsica (Condé 1947e), Sardinia (Bareth 1980), Sicily (Silvestri 1912) and Ponza Island (Condé 1978b).