Anillinus lescheni Sokolov and Carlton

Sokolov, Igor M., Carlton, Christopher & Cornell, James F., 2004, Review of Anillinus, with Descriptions of 17 New Species and a Key to Soil and Litter Species (Coleoptera: Carabidae: Trechinae: Bembidiini), The Coleopterists Bulletin 58 (2), pp. 185-233 : 217-218

Anillinus lescheni Sokolov and Carlton , new species

( Figs. 12, 15 , 30 , Map fig. 40)

Holotype ( USNM). Male labeled / Oklahoma, Latimer Co., IV-85, K.Stephan / HOLOTYPE, Anillinus lescheni Sokolov and Carlton , des. 2004/.

Paratypes (21). Four males and 2 females with same data as holotype. One female labeled / Oklahoma, Latimer Co., April 1982, Karl Stephan / collected under rock ( TAMU) ;/ 2 males, 1 female labeled / Oklahoma, Latimer Co., -IV-83, Karl Stephan / collected under rock/ ( TAMU, JFC) ; 1 male labeled / Oklahoma, Latimer Co., IV-85, Karl Stephan / collected under rock/ ( JFC) ; 1 male labeled / Oklahoma, Latimer Co., VI- 1985, K.Stephan / ( TAMU) ; 1 male labeled / Oklahoma, Latimer Co., III-1987, Karl Stephan / ( JFC) ; 1 male labeled / Oklahoma, Latimer Co., IV-1987, Karl Stephan / ( JFC) ; 1 male labeled / Oklahoma, Latimer Co., III-1989, Karl Stephan / ( JFC) ; 1 male, 1 female labeled / Oklahoma, Latimer Co., - IV-1991, Karl Stephan / ( TAMU) ; 1 male, 1 female labeled / Oklahoma, Latimer Co., - III-1992, Karl Stephan / ( TAMU) ; 2 females labeled / Oklahoma, Latimer Co., - III-1992, Karl Stephan / ex gopher burrow/ ( TAMU) .

Specific Epithet. This species is named for Richard Leschen (Landcare Research, Auckland, New Zealand) in honor of his contributions to Coleoptera systematics and in recognition of Karl Stephan’s effectiveness in training coleopterists how to collect.

Description. Large-sized species (ABL range, 2.20–2.50 mm; mean, 2.38 mm, n ¼ 10). Habitus elongate, parallel-sided (WE/ABL, 0.29), head relatively broad (WH/WPm, 0.81), pronotum wide (WPm/WE, 0.97). Color of body various, from rufotestaceous to amber testaceous, appendages testaceous. Dorsal microsculpture distinct, covering pronotum and head except for small areas with indistinct microsculpture at anterior parts of frons between frontal carinae and frontal grooves.

Pronotum moderately convex, broad (WPm/LP, 1.46), with margins markedly constricted posteriad (WPm/WPp, 1.52) and slightly sinuate before posterior angles. Anterior angles evident, slightly prominent. Posterior angles nearly rectangular (95–1008). Width between anterior angles much greater than between posterior angles (WPa/WPp, 1.05).

Elytra slightly convex, widely depressed along suture, relatively short (LE/ABL, 0.57), with traces 3–4 interneurs. Humeri prominent, only slightly rounded. Vestiture of elytra short (less than one-fourth length of discal setae).

Males with mesotibiae bearing a posterior row of approximately six, evenly spaced teeth. Metafemora ( Fig. 12) swollen, broadest in apical one-third and bearing a posterior row of low tubercles in middle one-third. Metatibiae ( Fig. 15 ) bearing a posterior row of irregular rounded, granular tubercles.

Median lobe ( Fig. 30 ) large, slightly arcuate, with an elongate ventrolateral lobe. Internal sac with large curved copulatory sclerite. Internal sac bearing approximately ten sharp, conical spines. Ventral sclerite absent, but two dense clusters of ventral spines present.

Distribution. Known from Latimer Co., Oklahoma ( Fig. 40). This species and its sympatric congener A. stephani represent the western-most occurrences of the genus.

Habitat. Although Karl Stephan’s collecting efforts encompass the entire area of Latimer County, two of his favorite collecting localities are his house near Red Oak and Robbers Cave State Park. Habitat where specimens were collected at the state park is rocky upland oak/hickory/shortleaf pine forest. Specimens were taken from beneath large rocks during rainy weather (K. Stephan pers. comm.). This locality is also the type and only known locality for the pselaphine staphylinid Arianops stephani Carlton and Allen (Carlton and Allen 1989) .

Differential Diagnosis. Anillinus lescheni is parallel-sided with distinct microsculpture on the forebody ( Table 2, group II of endogean species). This species is sympatric with A. stephani , which shares the elongate habitus and distinct microsculpture. The unusual tubercles of the metatibiae and large ventrolateral process of the aedeagus of males distinguish this species from A. stephani and all other species. It is also much larger than A. stephani .

Figures

Figs. 14–17. Anillinus spp., right metatibiae, setae and spurs omitted. 14) A. elongatus Jeannel; 15) A. lescheni n. sp.; 16) A. fortis (Horn); 17) A. stephani n. sp.

Figs. 25–31. Aedeagi of Anillinus spp., right lateral aspects, scale ¼ 0.1 mm. 25) A. docwatsoni n. sp.; 26) A. erwini n.sp.; 27) A. folkertsi n.sp.; 28) A. kovariki n.sp.; 29) Anillinus langdoni n.sp.; 30) A. lescheni n. sp.; 31) A. loweae n.sp.