Canthochilum matthewsi Philips & Ivie, new species
Creators: name: Philips, Keith
name: Ivie, Michael A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Canthochilum
Canthochilum matthewsi

description: Canthochilum matthewsi Philips & Ivie, new species
Figs. 3, 9, 15, 21, 27, 36, 45, 46
Diagnosis. This species can be differentiated from others by the clypeal margin with six teeth (excluding the angulation at clypeo-genal margin), the elytral interspaces rounded at top of elytral declivity, and the transversely subcarinate at the elytral apex in rear view.
Description (male). Body oblong, reddish-black, legs and anterior edge of clypeus reddish brown (Fig. 36); dorsal surface of head with fine punctures separated by 4X diameter on anterior 1/2, becoming larger, separated by 1X diameter on vertex, near posterior margin and near eyes, surface shagreened near posterior margin only; clypeus with 6 teeth anteriorly, mesad teeth largest, acute but tips blunt, remaining teeth progressively smaller laterally, obtuse, clypeal-genal projections smaller, obtuse (Fig. 9); dorsal ocular area large, eyes separated by a distance equal to 3.5 to 4X their transverse width (Fig. 9); elytral striae distinct, deep, with fine punctures along length; elytral intervals distinctly but shallowly convex, row of very weak bumps down center, very fine scattered punctures visible under high magnification, surface coarsely shagreened; elytron with lateral carina or relatively abruptly angulate margin between seventh and eighth striae, punctures of eighth stria dorsad margin of epipleuron coarse, row evenly spaced; protibia with 3 teeth, distally bent strongly, obliquely, forward from tarsal insertion (Fig. 21); protibial spur broad, moderately hooked, reaching third tarsomere; metatibia slightly arcuate; mesosternal suture anteriorly slightly obtusely angled (Fig. 15); metasternum with a distinct longitudinally elongate depression at middle; pygidium entirely margined, nearly flat, surface finely punctured and smooth; aedeagus with basal piece with small finger-like projection attached at apex to basal paramere region, parameres small and triangular (Fig. 27). Length: 2.9 – 3.6 mm, measured along midline from anterior margin of pronotum to tip of elytra.
Female. Differs from the male by the smaller protibial spurs that are less curved apically; the significantly less curved metatibia, and the less deep metasternal depression.
Types. HOLOTYPE MALE: DOM.REP: Par. Nac. Almando; Bermudez, Cordillera Cent.; Los Tablones, 1,220m; 0 3 SEP 1988, M. A. Ivie; K. Philips & K. A. Johnson [NMNH].
ALLOTYPE FEMALE: DOM.REP: Prov. Santiago; Par. Nac. A. Bermudez; Los Tablones, 1,290m; M. A. & R. O. Ivie colr; flight intercept trap/ on Rio Izquiera; 19º03’N, 70º50’W; 0 9 APR–07JULY 1992 [NMNH]. PARATYPES. 1 MALE — same data as Holotype [WIBF]
1 MALE, 3 FEMALES — same data as Allotype [WIBF]. 1 MALE — DOM.REP: Prov. La Vega; Par. Nac. Armando Bermudez; Los Tablones, 1,245m, 19º03’; N, 70º50’W, 07JULY–25AUG; 1992, M. A. Ivie & D.S. Sikes/ flight intercept trap [WIBF]. 1 FEMALE — Colonia, 1.5; 1000m 1972/ Rep. Dominic.; J. & S Klapperich [CMNC]. 3 FEMALES — DOM.REP: La Vega Prov.; PN A. Bermudez, Cienaga; 19.VII– 2.VIII.95, 1000m; trop.evgrn.for, FIT; S + J Peck, 95-32 [CMNC, TKPC]. 5 MALES, 7 FEMALES — DOM.REP: La Vega Prov.; PN A. Bermudez, Cienaga; 19.VII–2.VIII. 95, 1010m; trop.evgrn.for., FIT; S + J Peck, 95-33 [CMNC, TKPC, WIBF]. 2 FEMALES — DOM.REP: La Vega Prov.; PN A. Bermudez, Cienaga; 19.VII–2.VIII. 95, 1020m; trop.evgrn.for., FIT; S + J Peck, 95-34 [CMNC, TKPC]. 3 MALES, 3 FEMALES — DOM.REP: La Vega Prov.; PN A. Bermudez, Cienaga; 19.VII–2.VIII.95, 1100m; trop.evgrn.for., FIT; S + J Peck, 95-36 [CMNC, TKPC]. 2 MALES, 3 FEMALES — DOM.REP: La Vega Prov.; PN A. Bermudez, Cienaga; 21.VII–4.VIII.95 for.; carrion traps, 1000m; S + J Peck, 95-39 [CMNC, MNHD, WIBF]. 2 MALES — DOM.REP: La Vega Prov.; PN A. Bermudez, Cienaga; 19.VII.95, 1000m; for. carrion traps; S + J Peck, 95-38 [CMNC, WIBF]. 1 MALE — DOM.REP: La Vega Prov.; PN Bermudez, 1 km W; Cienaga, 1050m; 2.VIII.95, forest litter; S + J Peck, 95-53 [CMNC].
Etymology. This species is named after Eric Matthews, in recognition to the tremendous advances he made in the study of West Indian Scarabaeinae.
Notes. This species is sympatric with Canthochilum magnum and both species can sometimes be found together in the same trap.
description: Published as part of Philips, Keith & Ivie, Michael A., 2008, Seven new species of Canthochilum Chapin from Hispaniola (Coleoptera: Scarabaeidae: Scarabaeinae), pp. 27-42 in Zootaxa 1730 on pages 32-33, DOI: 10.5281/zenodo.181296