Canidia chemsaki Wappes and Lingafelter, New species
Creators: name: Wappes, James E.
name: Lingafelter, Steven W.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Canidia
Canidia chemsaki

description: Canidia chemsaki Wappes and Lingafelter, New species
Figs. 1 c, 2c, 4h, 5i, 7i, 9i; Map 1
Type Material: Holotype male (EMEC), San Jeronimo, Volcan Tacana, Chiapas, MEX­ ICO, VIII­10­70. Allotype female (EMEC), Chiapas, Mex., 12 mi. N. of Tuxtla Gutierrez VIII­11­52, (C. D. MacNeill). Fifty­six paratypes from Mexico: 1 male, same location as holotype, IX­19­70; 3 males, Chiapas, San Jeronimo, 600 m, IX­1­9­75; 1 female, same locality, VII­24­1973 (E. C. Welling); 1 male, same locality, VIII­11­16­75; 1 female, Chiapas, Jnct. Rts. 190 & 195, VI­11­1969 (J. M. Campbell); 1 female, Chiapas, 20­25 mi N Huixtla, 300’, 4 June 1969 (H. J. Teskey); 1 female, Candelaria, Loxicha, Oaxaca, V­27­ 85; 1 female, same locality, VI­26­85; 1 female, same locality, VII­21­85; 1 male, same locality, VII­29­85; 1 male, same locality, IX­16­85; 1 female, same locality, IX­6­85; 1 female, same locality, IX­10­85; 1 female, same locality, IX­1­85; 1 female, same locality, VI­22­83; 2 males, Chiapas, 35 km S San Cristobal, Sept 28, 1986 (J. E. Wappes); 1 male, Comitan, Chiapas, (D. H. Janzen); 1 female, Jnct. Rts. 190 & 195, Chiapas., VI­11­1969; 2 males, Chiapas, Parque Nacional El Aquacero, 27 Sept., 1986 and 3 Oct. 1986 (R. H. Turnbow); 1 female, Chis., 20­25 mi. N. Huiptla, 3000’, 4 June 1969 (H. J. Teskey); 1 female, Chiapas, 4 mi NW of Pueblo Nuevo River Bajada, VII­30­1965 (G. H. Nelson); 6 females and 5 males, Chiapas, El Chorreodero Cyn., 1 Oct., 1989 (F. T. Hovore); 1 female, Chiapas, 11 km S Bochil, 30 Sept., 1989 (F. T. Hovore); 1 male, Chiapas, Sumidero Cyn., 27 Sept., 1989 (F. T. Hovore); 9 females and 4 males, Chiapas, El Chorreodero Cyn., 1 Oct. 1989 (F. T. Hovore); 3 females, Chiapas, 12 km N Berriozabal “Pozo la Pera”, T. Luz 917 msnm, 19­21­VII­2001 (V. H. Toledo, A. M. Corona y A. Rodriquez); 1 sex?, Oaxaca, km 178, Puerto Escondido Rd., R. Bandar, VII­65; 1 sex?, Oaxaca, Jamaica Jct., km 183, Puerto Escondido Rd., R. Bandar, Vii­66. Paratypes deposited in EMEC, CNCI, USNM, UNAM, FHPC, GNPC, RTPC, JCPC, JEWC.
Male. Form moderately robust, subcylindrical, weakly tapering apically. Integument black to piceous, densely clothed with short, fine, white and brown, mottled, recumbent pubescence; a few longer, erect setae around moderately pronounced basal elytral crests; pronotum without pubescent fasciae or vittae; elytra usually with distinct inverted Vshaped white fascia post­medially, and a sinuate white fascia extending around outside and posterior of basal elytral crest and posteriorly along suture. Head with front convex; median line moderately impressed, extending to occiput, widened at the base of the antennal tubercles in a small, flattened diamond to triangularly shaped denuded area; frons, area behind and between the eyes, tubercles, dorsal­lateral areas of the gena and basal margins covered with gray pubescence; upper lobes of the eyes separated by width of scutellum base, lower lobes elongate­ovate and distinctly longer than the height of the gena directly below them. Antennae slender, surpassing elytra by at least 5 segments, moderately clothed with short, mottled, gray pubescence, all segments annulate at apical one­third to one­fourth, third segment approximately as long as scape, remaining segments successively decreasing in length through ninth which is subequal to tenth and eleventh; scape elongate, distinctly mottled, extending nearly to posterior pronotal margin, feebly carinate, cylindrical, widest at apical two­thirds, impressed below on apical one­fourth to one­third before apical process, apical process asymmetrical, with one lobe distinctly larger than the other, impressed behind. Pronotum cylindrical, width across tubercles approximately equal to or greater than dorsal length, slightly narrower posterior to lateral tubercles than anteriorly, moderately punctate above and on sides, punctures separated by 1–3 times their diameter, as large as those at base of elytra; coated with gray pubescence not arranged in vittae or other pattern; typically with glabrous, swollen region at middle of disk and with divided, transverse band across anterior one­third. Sides armed with moderate, acute tubercles, post­mediolaterally positioned, tubercles slightly retrorse. Scutellum of moderate size, broader than long, narrowly rounded at apex, impunctate, clothed with mottled gray and brown pubescence. Elytra broad at base, weakly tapering apically; together about 2.6 times as long as greatest width (at humeri), covered with mottled brown and white pubescence, usually with distinct pattern consisting of white inverted post­medial Vshaped fascia and a sinuate white fascia extending around outside of and behind basal elytral crest and down suture; coarsely punctate, punctures approximately spaced and sized as in pronotum; punctures deeper at base, progressively smaller distally, but present to apex; moderately developed basal crests surrounded by sparse, longer setae present; apices truncate. Underside densely mottled white and brown pubescence; prosternal process narrow, broadly expanded apically, at narrowest point one­fifth as wide as procoxal cavities; procoxal cavities closed behind; mesosternal process simple, 2–3 times as wide as prosternal process, over one­third width of mesocoxal cavities. Legs elongate, clavate; finely pubescent, bearing dense coating of mottled (rarely indistinct) white and brown setae, with golden and denser pubescence more pronounced on apical one­third of tibiae and all tarsi. Abdomen densely pubescent, mottled white and brown obscuring surface; terminal segment distinctly notched medially at apex, over 1.5 times as broad as long. Length 10.5– 11.2 mm, width 3.2–3.5 mm.
Female. Form similar to male; antennae surpassing elytral apices by about 4 segments; abdomen with terminal segment 1.5 times as broad as long, apical margin truncate and not indented. Length, 11.0– 14.2 mm, width 3.8–4.5 mm.
Remarks: This species has a distinctive brown and pale gray to white elytral pattern that is clearly evident on all but the most worn specimens. This pattern is bolder than in the similar C. ochreostictica (Dillon). In most examples the legs and antennae are mottled, however this is not evident in all specimens. Most specimens have a glabrous, swollen region at the middle of the disk and a divided, transverse swollen, glabrous band across the anterior one­third (lacking in C. ochreostictica). When viewed in cross section, both this species and C. giesberti, new species, have a triangular shaped, feebly­carinate scape with a large, broadly rounded apical process. Some specimens were taken on bark of Cedrela.
Etymology. This species is named after Dr. John A. Chemsak, in recognition of his many contributions to cerambycid taxonomy and for his enthusiastic encouragement of others to contribute to the science.
description: Published as part of Wappes, James E. & Lingafelter, Steven W., 2005, (Coleoptera: Cerambycidae, Lamiinae, Acanthocinini), pp. 1-27 in Zootaxa 927 on pages 4-6, DOI: 10.5281/zenodo.171108