Aleochara (Aleochara) gracilicornis Bernhauer

Klimaszewski, Jan, Langor, David W., Bourdon, Caroline, Gilbert, Amelie & Labrecque, Myriam, 2016, Two new species and new provincial records of aleocharine rove beetles from Newfoundland and Labrador, Canada (Coleoptera, Staphylinidae, Aleocharinae), ZooKeys 593, pp. 49-89 : 54

Taxon classification Animalia Coleoptera Staphylinidae

Aleochara (Aleochara) gracilicornis Bernhauer Figs 15-22

Diagnosis.

Body length 4.0-6.0 mm, robust, dark brown to black, with legs or only tarsi, labial and maxillary palpi and most of elytra (except sides and for scutellar section) rust-brown to yellowish-brown (Fig. 15); maximum distance between eyes equal to 2.0 times maximum diameter of eye (Fig. 15). This species is externally very similar to Aleochara tahoensis Bernhauer from which it differs by having a narrower distance between eyes (2.5 times maximum diameter of eye in Aleochara tahoensis ). It may be distinguished from all species of Aleochara by the shape of the median lobe and the sclerites of the internal sac of the aedeagus (Fig. 16), and the shape of the spermatheca (Fig. 22). For a more detailed description, see Klimaszewski (1984).

Distribution.

Bionomics.

In North America, adults were collected from debris among vegetation in a temporary creek, from leaves and debris at the edge of deciduous forest and from flood debris, in swampy habitats, and in an old beaver lodge and on carrion ( Klimaszewski 1984). Specimens were collected from March to September at altitudes up to 2651 m.