Lathrobium (Lathrobium) leconteanum Scheerpeltz, 1933

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 (Lathrobium) leconteanum Scheerpeltz, 1933

Lathrobium leconteanum Scheerpeltz, 1933: 1274.

Lathrobium concolor LeConte, 1880: 175 (junior homonym).

Type material.

Lectotype, Lathrobium leconteanum Scheerpeltz, herein designated (MCZ): Faded disc / "♂ ♀ / [handwritten] L. concolor Lec. / [red] Type 6450 / Lectotype Lathrobium concolor LeConte Desg. Haberski & Caterino."

Other material.

USA: Indiana: ‘Ind.’ (1, USNM) . New Hampshire: Coos Co.: Mount Washington (1, UNHC); Grafton Co.: Hubbard Brook Experimental Forest , D. S. Chandler (1, UNHC) .

Diagnosis.

This species is similar in appearance to L. washingtoni but differs in having elongate antennomeres. Males are otherwise difficult to tell apart, even in the primary and secondary sexual characters. Lathrobium leconteanum has four spines on the internal sac of the aedeagus whereas L. washingtoni has two. Females are more easily differentiated because L. leconteanum has an undivided tergite IX and L. washingtoni has tergite IX fully divided.

Description.

Body length 7 mm; body coloration dark red, appendages lighter. Gular sutures parallel, widely separate; antennomeres V-VII longer than wide. Elytra 1.2 × longer than pronotum. Females with paraprocts undivided, apices 1.3 × as long as basal portion; sternite VIII conical with small apical notch. Genitalia as in Fig. 44 .

Distribution.

Canada: ON, NF ( Bousquet et al. 2013). USA: IN, NH.

Figures

Figures 44 - 49. Lathrobium terminalia A female terminalia B male sternite VIII C aedeagus in ventral view D aedeagus in lateral view. 44 L. leconteanum 45 L. lineatocolle 46 L. pedale 47 L. praelongum 48 L. rhodeanum 49 L. simile. Scale bars: 1 mm.