Callimoxys Kraatz, 1863

Hammond, H. E. James & Williams, Daryl J., 2011, A Revision of the GenusCallimoxysKraatz (Coleoptera: Cerambycidae) in America North of Mexico and Review of World Species, The Coleopterists Bulletin 65 (3), pp. 246-289 : 262-263

Callimoxys Kraatz, 1863

Callimoxys Kraatz, 1863: 105

Diagnosis. Members of this genus can be separated from other genera of the Stenopterini by the following combination of characters: antennae 11-segmented, filiform; pronotum with one or two pairs of dorsolateral tubercles, surface densely punctured and pubescent; elytra relatively short and narrow, dehiscing from basal third to half, leaving 1–3 abdominal tergites exposed; abdominal segments elongate and narrow; pro- and mesofemora distinctly clavate, metafemora clavate to gradually enlarged apically; metatibia with modified punctures with leading edges enlarged and protuberant, forming ±2 rows of acute teeth; median lobe of aedeagus elongate and narrow with developed ventral lobe; tegmen bilobed, with two lateral apical apophyses.

Redescription. Male. Length: 6–12 mm. Color: Light brown to black except as follows: pronotum usually black, orange in one species; legs and tarsi completely brown to black to bicolored with apex dark and base yellow; tarsi light to dark brown with base lighter. Head: Wide dorsally across eyes. Elongate, mouthparts projecting forward to ventrally. Labrum truncate to bilobed, variously punctured. Clypeus short, with hind margin arcuate to V-shaped, variously punctured. Vertex deeply impressed between antennal bases, deeply punctured to longitudinally rugose. Interocular distance wide. Eyes deeply emarginated; upper lobe small and rounded, lower lobe larger, globose to triangular. Hind margin of eye with shallow to deep sinuation. Small to large postocular temple. Antennae: Long, usually reaching or surpassing elytral apex. Eleven-segmented, filiform, with apical antennomeres triangular to oval in cross section. Sensory pits situated laterally on antennomeres 5–11. Pronotum: Width subequal to or shorter than length. Disk with one or two pairs of lateral tuberosities, often with a smaller triangular or linear elevated area between posterior pair. Laterally with a single larger protuberant tuberosity. Surface densely punctured with erect fine to coarse setae of variable length. Sternum: Prosternum long before procoxae. Procoxae separated by narrow, entire prosternal process. Mesocoxae separated by broad intercoxal process. Metacoxae separated by narrow gap. Elytra: Short, leaving from one to three apical abdominal tergites exposed. Broad at base, narrowing from basal third to half, apex attenuated and subulate. Punctation with a mixture of large and small punctures, not forming striae. Scutellum emarginate to bilobed. Wings: Veins r3, r4, RP, Ap3, AA4, and AA3 present and variously developed. Legs: Pro- and mesocoxae globose and slightly transverse. Pro- and mesofemora distinctly clavate. Metafemora range from gradually widened apically to distinctly clavate. Metatibia along lateral margin with modified punctures with leading edges enlarged and protuberant, forming ±2 rows of acute teeth. Abdomen: Five segmented with segment 1 longest, overall long and narrow. Abdominal sternites with variously developed transverse to oval punctation. Transverse microsculpture usually present. Genitalia: Tergum VIII broad and shield-like. Sternum VIII reduced to 2 small lateral lobes joined by medial basal apophysis. Spiculum ventrale present. Median lobe of aedeagus with variously developed ventral lobe. Tegmen bilobed, with two lateral apical apophyses.

Female. Similar to male except as follows: Length: 7–14 mm. Color: Light brown to black except as follows: pronotum usually bicolored orange with basal and apical margins black, to completely orange in some species. Head: Narrow across eyes. Antennae: Short, shorter than or reaching elytral apex. Pronotum: Width ≥ length.

Hosts. Acer spp. , Carya spp. , Ceanothus spp. , Cornus spp. , Crataegus spp. Lithocarpus spp. , Paliurus spp. , Prunus spp. , Quercus spp. (Bense 1995; Linsley and Chemsak 1997; Sama 2002; Vlasak and Vlasakova 2002).

Flower and Associated Vegetation Records. Ceanothus spp. , Cornus spp. , Crataegus spp. , Eriogonum spp. , Heracleum spp. , Holodiscus spp. , Phacelia spp. , Photinia spp. , Prunus spp. , Quercus spp. , Rhamnus spp. , Rhus spp. , Spiraea spp. , Toxicodendron spp. , Viburnum spp. (Linsley and Chemsak 1997; Sama 2002).

Distribution. Species of Callimoxys are known from Bulgaria, Canada, Caucasus, China, Croatia, Crimea, Greece, Hungary, Iran, Romania, Slovakia, Transcaucasus, Turkey, and United States.

Remarks. This genus is superficially similar to both the European Stenopterus and to the Oriental Merionoeda in sharing the tapered and shortened elytra and the distinctly bicolored and clavate metafemora. However, the male genitalia of Callimoxys are unique in that the median lobe is narrow and elongate and the tegmen is completely bilobed, with two completely separate lateral apical apophyses, whereas both Stenopterus and Merionoeda have short and broad aedeagi and a single lobed tegmen.