Anillinus barberi Jeannel, 1963

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 : 197-198

Anillinus barberi Jeannel

(Map fig. 38)

Anillinus barberi Jeannel 1963 b:150 . Holotype female glued on triangle and labeled / Plummer Is., Md. 44 22 5 H.S. Barber / TYPE/ TYPE No 69545 USNM/ Anillinus barberi type R. Jeannel det., 19 / deposited USNM.

Holotype examined. Specimen is in good condition, not damaged or dissected.

Description. Large-sized for genus (ABL 1.98 mm). Habitus moderately convex, ovoid (WE/ ABL, 0.39), head of moderate size (WH/WPm, 0.73), elytra relatively narrow (WPm/WE, 0.83). Color of body brunneorufous, appendages testaceous. Dorsal microsculpture distinct over all dorsal surfaces of head and pronotum with meshes of small diameter: 10–11 versus 7–8 sculpticells of other species on line equal to 0.1 mm (counted on pronotum left and below intersection of median line and antero-transverse impression).

Pronotum moderately convex and transverse (WPm/LP, 1.34), with margins moderately and rectilinear constricted posteriad (WPm/WPp, 1.29), without sinuation before posterior angles. Anterior angles evident, prominent. Posterior angles obtuse. Width between posterior angles approximately the same as between anterior angles (WPa/WPp, 0.98).

Elytra moderately convex, subparallel at middle, slightly depressed along suture, relatively elongate (LE/ABL, 0.59), with traces of 1–2 interneurs. Humeri prominent, slightly rounded. Vestiture of elytra short. Genitalia not examined.

Distribution. Known only from the type locality on the Potomac River in Virginia and Maryland ( Fig. 38).

Habitat. No data.

Differential Diagnosis. Anillinus barberi is ovoid in form with distinct microsculpture on the forebody ( Table 2, species group I of litter species). This species is not known to be sympatric with any other members of the genus. The limited distribution and relatively large size make it unlikely that this species will be confused with others. Additional specimens and aedeagal examination are required for further diagnosis.