Anillinus daggyi 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 : 210-212

Anillinus daggyi Sokolov and Carlton , new species

( Fig. 24 , Map fig. 42)

Holotype ( NCSU). Male labeled /69348/ Glen Alpine Springs Burke Co., NC IV 17 1977 Tom Daggy / HOLOTYPE, Anillinus daggyi Sokolov and Carlton , des. 2004/.

Paratypes (18). Four males, 5 females, same data as holotype and bearing the following top labels /69342/; /69343/; /69344/; /69345; /69346/; /69347/; /69349/; /69350/ ( NCSU); 3 males (1 slide mounted) and 2 females labeled / Glen Alpine Springs Burke Co., NC XI 29 1973 Tom Daggy/ and bearing the following top labels /61786/; /61787/; 61789/; /61790/; /61791/ ( NCSU); 1 male and 3 females labeled / NC Burke Co 8 mi S Enola CR1969 4 Oct 70 JCornell ex rot stump ( JFC) .

Specific Epithet. The species is named for the collector, Tom Daggy.

Description. Small-sized for genus (ABL range, 1.53–1.77 mm; mean, 1.65 mm, n ¼ 10). Habitus moderately convex, ovoid (WE/ABL, 0.38), head of moderate size (WH/WPm, 0.75), elytra relatively wide (WPm/WE, 0.77). Color of body rufotestaceous, appendages testaceous.

Head with microsculpture evident across frons and vertex, except indistinct in paramedian areas of vertex. Dorsal microsculpture distinct across most pronotum; indistinct along midline.

Pronotum moderately convex and transverse (WPm/LP, 1.23), with margins moderately and rectilinear convergent towards base (WPm/WPp, 1.29). Anterior angles evident, slightly prominent. Posterior angles slightly obtuse (100–1108). Width between posterior angles equal to width between anterior angles (WPa/WPp, 1.00).

Elytra moderately convex, slightly depressed along suture, length normal for genus (LE/ABL, 0.57), with traces of 1–2 interneurs. Humeri moderately prominent, slightly rounded. Vestiture of elytra short (less than one-quarter length of discal setae).

Males with metafemora simple.

Median lobe ( Fig. 24 ) weakly arcuate with broad lobate apex. Internal sac with dorsal copulatory sclerite short and sickle-shaped; ventral sclerites and spine patches absent.

Distribution. This species is known from two nearby localities in Burke County, NC ( Fig. 42 ).

Habitat. A series of four specimens was collected from a rotten stump.

Differential Diagnosis. Anillinus daggyi is ovoid in form with microsculpture on the forebody except paramedian patches of vertex ( Table 2, group II of litter species). In

addition, it may be distinguished from all other species in this group (for which males are known) by the form of the copulatory sclerites and armature of the internal sac.

This species is sympatric with A. fortis and probably with A. erwini , and it is likely sympatric with at least one species of Serranillus . From A. erwini it differs by the presence of microsculpture across most of the disc of the pronotum and head, and by the shorter and more arcuate dorsal copulatory sclerite. Anillinus daggyi may be distinguished from A. fortis by its smaller size (mean ABL of A. fortis , 1.95; of A. daggyi , 1.65) and paler color, in addition to aedeagal differences.

Figures

Figs. 18–24. Aedeagi of Anillinus spp., right lateral aspects, scale ¼ 0.1 mm. 18) A. elongatus Jeannel; 19) A. fortis (Horn); 20) A. steevesi Barr; 21) A. balli n. sp.; 22) A. barri n. sp.; 23) A. cornelli n. sp.; 24) A. daggyi n. sp.

Fig. 42. Locality records for Anillinus spp. occurring within North and South Carolina, with the French Broad River indicated.