Lathrobium (Abletobium) pallescens (Casey, 1905)

Haberski, Adam & Caterino, Michael S., 2024, A review of Nearctic Lathrobium (Coleoptera, Staphylinidae), with revision and descriptions of new flightless species from the mountains of the southeastern U. S., ZooKeys 1198, pp. 193-277 : 193

Lathrobium (Abletobium) pallescens (Casey, 1905)

Abletobium pallescens Casey, 1905: 79.

Lathrobium (Abletobium) pallescens : Bernhauer and Schubert 1912: 265.

Type material.

Lectotype, Abletobium pallescens Casey herein designated (USNM): "MASS / CASEY bequest 1925 / [red] TYPE USNM 38106 / [handwritten] Abletobium pallescens Jul / Lectotype Abletobium pallescens Casey Desg. Haberski & Caterino."

Other material.

Canada, Ontario: Carleton Co.: Fitzroy Provincial Park, 02 May 1979, A. & Z. Smetana, (1 CNC); Grey Co. : Ingli's Falls , 24 Jun 1985, B. Sinclair (1 CNC) . Quebec: Haut Saint François: Johnville , 01 Nov 1987, C. Levesque (1 CNC); same locality, 03 Jul 1988 (1 CNC); same locality, 30 Oct 1988 (1 CNC) .

Diagnosis.

This species can be distinguished from all other Abletobium by the presence of eyes with ommatidia.

Description.

Body length 6 mm; Body coloration pale red. Eyes small, ~ 30 ommatidia. Head wider than pronotum; gular sutures parallel, widely separate throughout; antennomeres V-VII 1.8 × longer than wide. Elytra slightly shorter than pronotum. Females with paraprocts undivided, apices longer than basal portion; sternite VIII conical with small apical notch. Median lobe of aedeagus fully sclerotized and tube-like (Fig. 19 ).

Distribution.

Canada: ON, QC. USA: MA.

Remarks.

This species had not been previously recorded in Canada because CNC specimens had been misidentified as L. shermani . We corrected these identifications.

Figures

Figures 19, 20. Lathrobium terminalia A female terminalia B male sternite VIII C aedeagus in ventral view D aedeagus in lateral view. 19 L. pallescens 20 L. shermani. Scale bars: 1 mm.