Cimberis pilosa (LeConte)

Janicki, Julia & Young, Daniel K., 2017, Nemonychidae and Anthribidae of Wisconsin (Coleoptera: Curculionoidea), Insecta Mundi 2017 (579), pp. 1-36 : 4

Cimberis pilosa (LeConte)

(Fig. 3–4)

Rhinomacer pilosus Leconte 1876: 2 .

Cimberis pilosus (LeConte) ; Anderson 1947: 515.

Neocimberis pilosus (LeConte) ; O’Brien and Wibmer 1982: 18.

Cimberis pilosa (LeConte) ; Kuschel 1989: 139.

Description. Length 2.0– 3.8mm. Body elongate-oval. Integument reddish-brown to brown, if elytra reddish-brown head, prothorax and sterna often darker; antennae, prerostrum and legs partially to entirely reddish-brown. Vestiture consisting of recumbent to semierect, recurved, greyish or reddish setae. Frons 1.37–1.57X dorsal tip of rostrum, usually densely punctate. Rostrum strongly saddled basally, slender, 0.98–1.33X pronotal length, abruptly widened basally towards eyes. Labrum trapezoidal, sides converging from the base, apical margin rounded or subtruncate. Antennae reaching eyes at segment four or five. Eyes small, more or less circular in outline, strongly convex, with long interfacettal setae. Pronotum width 1.04–1.28X length, strongly rounded laterally, truncate or emarginate apically. Elytra elongate, length 1.76–1.94X width. Femora moderately to strongly swollen. Sexual dimorphism present: abdominal sternites 3–4 of female each with one setiferous pit of variable size.

Diagnosis. Cimberis pilosa can be distinguished by the trapezoidal labrum with sides converging from the base and rounded to subtruncate apical margin, small, convex eyes, yellow or rust-brown elytra with white setae, and by the smaller size.

Natural history. Adults are associated with male pollen-bearing flowers of pine ( Pinus spp. ), including Jack pine ( P. banksiana ), longleaf pine ( P. palustris ), Virginia pine ( P. virginiana ), and Scots pine ( P. silvestris ).

Phenology. In Wisconsin, adults were collected from April – June.

Collecting methods. The 19 specimens examined during the study came from eight counties and represent a NEW STATE RECORD. This species can be found in most habitats with pines, especially pine barrens ; most specimens examined were collected from Jack pine. Adults can be collected most readily by beating branches of male pine trees between late April and early May, especially those of Jack pine. One specimen was collected from a Lindgren funnel trap suspended on Jack pine.