Anthonomus juniperinus

Clark, Wayne E. & Burke, Horace R., 2010, The Anthonomus juniperinus group, with descriptions of two new species (Coleoptera: Curculionidae), Insecta Mundi 2010 (119), pp. 1-10 : 2-3

Key to species of the Anthonomus juniperinus group

1. Elytral scales fine, setalike, sparsely, evenly distributed. Body stout, sides of elytra subparallel in basal 1/2 or broadly rounded ( Fig. 6 ). Small, length 1.5-1.9 mm. Central Texas, western Arkansas. Host. Juniperus ashei J. Buchholz .................................................................... A. rileyi n.sp.

— Elytral scales more coarse, densely distributed, interrupted by angulate postmedian fascia on elytra extending across intervals 2-4, forming chevron-shaped pattern ( Figs. 2, 4 ); Body more elongate, sides of elytra nearly parallel in basal 1/2. Larger, length 2.0-3.0 mm. Eastern and western United States. Host. Juniperus spp. , not including J. ashei .................................... 2 2(1). Elytral postmedian fascia dark brown to black, distinctly defined ( Fig. 2 ); pronotal and elytral scales equally densely distributed; Eyes strongly convex in dorsal view, somewhat protuberant posteriorly. Rostrum short, nearly straight, slightly longer in female, ca. 1.2x longer than pronotum along midline. Legs stout; metafemur with small tooth, Body elongate-oval, length 2.0-2.5 mm. Eastern United States as far west as eastern regions of Texas and Kansas. ........ ...................................................................................................... A. juniperinus (Sanborn)

— Elytral postmedian fascia sometimes faintly darkened but not distinctly defined, mostly bare with occasional small dark spots on interstriae 2 and 4; pronotal scales more densely distributed than elytral scales ( Fig. 4 ). Eyes more evenly and not as strongly convex in dorsal view. Rostrum longer and more slender, especially in female, ca. 1.5x longer than pronotum along midline, Legs slender; metafemur without tooth. Body stouter, length 2.3-3.0 mm. Arizona, California, Colorado, Idaho, Oregon, and Utah. ............................................................ A. sanborni n.sp.

Figures

Figure 1-6. Anthonomus juniperinus group spp., habitus, lateral and dorsal views. 1, 2) A. juniperinus, male, 10 mi. SW Elkhart, Texas. 3, 4) A. sanborni, female, 15 mi. N Alvord Ranch, Harney County, Oregon. 5, 6) A. rileyi, female, vic. Long Hollow Creek, Travis County, Texas.