Odontocera triplehorni Wappes and Santos-Silva

Wappes, James E. & Silva, Antonio Santos-, 2015, A New Odontocera Audinet- Serville (Coleoptera: Cerambycidae: Rhinotragini) From Honduras And Nicaragua, The Coleopterists Bulletin (mo 14) 69, pp. 180-182 : 180-182

Odontocera triplehorni Wappes and Santos-Silva , new species

( Figs. 1–3 )

Diagnosis. Odontocera triplehorni is similar to photographs of Odontocera chrysostetha Bates, 1870 , in Bezark (2015) and specimens in the ACMT and MZSP, but differs as follows: pronotum with four black spots, one at middle of both anterior and posterior margins and two in middle of disk; lateral black line of elytra interrupted near base; sutural black line of elytra not reaching scutellum. In O. chrysostetha , the pronotum has six black spots, two on the anterior margin, two laterally about middle, and two laterally near base, the lateral black line of the elytra reaches the humerus, and the sutural black line of the elytra reaches the scutellum. It also differs in its distribution, being known only from South America.

Description. Holotype female ( Figs. 1–3 ). Integument yellowish orange, except the following black: labrum; mandibles; small semicircle on vertex, close to prothorax; antennae, except for ventral surface of scape, part of ventral surface of pedicel, ventral surface of antennomeres III–IV, ventral surface of basal 2/3 of antennomere V, basal half of antennomere VI, and distal half of antennomere XI; 4 irregular spots on pronotum; dorsal patch on each humerus; line on epipleura (that does not reach humerus) and another on elytral suture (that does not reach scutellum), both interconnected at apex; small area on dorsal extreme of profemur; dorsal and part of outer surface of mesofemur at distal extreme; outer surface of metafemur at distal extreme; dorsal and outer surface of pro- and mesotibiae; distal fourth of outer surface of metatibiae, and about distal fifth of dorsal, ventral, and inner surface of metatibiae; tarsi, except for base of tarsomeres I–III and V. Head: Not elongated behind eyes (posterior edge of eyes near anterior edge of prothorax); rostrum (between apex of inferior ocular lobe and genal apex) in frontal view 1.2 times length of lower eye lobe. Frons coarsely, confluently punctate; with sparse, short yellowish setae, distinctly sparser towards center, interspersed with sparse, long setae. Vertex finely, moderately abundantly punctate, distinctly sparser centrally than laterally; with sparse, moderately long, yellowish setae. Antennal tubercles coarsely, shallowly punctate on basal 3/4, with sparse, short yellowish setae; distal quarter smooth, glabrous. Labrum with sparse, short yellowish setae on disc, sparsely interspersed with long setae; with longer, thick seta laterally. Lateral side of mandible with sparse, short, yellowish setae, interspersed with sparse, long setae on basal third. Area behind middle of lower eye lobes with fringe of yellowish, dense setae close to eye, interspersed with sparse, long setae; with long yellowish setae sparse under lower eye lobes. Genae coarsely, abundantly, punctate-striate, except for smooth, narrow area close to apex; with sparse, short yellowish setae, except for glabrous area close to apex. Gula smooth, glabrous. Submentum transversely striate; with sparse, short setae, distinctly longer laterally. Distance between upper eye lobes equal to 0.7 times length of scape; in frontal view, distance between lower eye lobes slightly shorter than 0.7 times length of scape. Antenna about as long as elytral length; nearly reaching distal third of elytra; antennomere III filiform; antennomeres IV–V enlarged towards apex, with distal outer angle rounded; antennomeres VI–X distinctly enlarged towards apex, distal outer angle dentate; antennomeres VI–XI forming moderately distinct club; scape, pedicel, and antennomeres III–VI with long, dark, thick setae; antennal formula (ratio) based on antennomere III: scape = 0.65; pedicel = 0.26; IV = 0.54; V = 0.78; VI = 0.74; VII = 0.67; VIII = 0.57; IX = 0.52; X = 0.41; XI = 0.46. Thorax: Prothorax subcylindrical, longer than wide, widest near middle, with blunt tubercle laterally. Pronotal disk elevated, with 5 low tubercles, 2 subrounded ones on each side (anterior ones more distinct), and a longitudinal one in middle; elevated area coarsely, confluently punctate, with sparse, short, yellowish setae, intermixed with sparse, long setae; anterior and posterior regions with yellowish white pubescence, interspersed with sparse, long, yellowish setae. Prothorax laterally, shallowly, coarsely punctate; with sparse, long setae, intermixed with sparse, short setae. Prosternum, coarsely, moderately shallowly, confluently punctate on basal half; distal half with sparse, coarse, shallow punctures; basal half pubescent, interspersed with sparse, long setae; distal half also with sparse, long setae. Prosternal process distinctly narrowed centrally, truncate at apex; with short, moderately abundant setae, with long setae intermixed. Metepisterna pubescent, with sparse, long setae intermixed. Metasternum laterally and anteriorly pubescent, with sparse, long setae intermixed; remaining surface with short, sparse setae, interspersed with sparse, long setae. Scutellum with yellowish white pubescence. Elytra: Long, narrowed from base to apex, slightly dehiscent suturally at distal third; moderately coarsely, abundantly punctate laterally and on base; translucent area with sparse, fine punctures; with sparse, long setae on basal fourth, gradually shorter and sparser towards apex. Abdomen: Ventrites moderately, finely, abundantly punctate laterally, sparsely punctate centrally; with sparse, long setae, more abundant laterally; sternites rounded ventrally with the 5 th narrowed and evenly rounded at apex. Legs: Femora clavate; metafemoral peduncle distinctly long; apex of metafemur reaching apex of 4 th abdominal segment. Metatarsomere I 1.4 times longer than II–III together.

Male. General color as female holotype, except for: longer dorsal black area distally on mesofemural club (0.6 times its length); metafemural club with apex completely ringed in black. Lower eye lobes much larger, resulting in them being much closer together (0.2 times length of scape) in frontal view. Antennae 1.14 times elytral length; nearly reaching apices of elytra (0.9 times its length). Fifth sternite broadly, shallowly excavated ventrally and widely notched at apex.

Dimensions. Holotype female/ paratype male. Total length (from mandibular apex to abdominal apex) 14.8/ 15.4 mm. Prothorax: length 2.5/ 2.3 mm; anterior width 2.1/ 1.5 mm; posterior width 2.0/ 1.7 mm. Humeral width 2.7/ 2.3 mm. Elytral length 9.2/ 8.3 mm.

Type Material. H o l o t y p e f e m a l e f r o m HONDURAS, Olancho: La Muralla National Park , 24-27.V.1995, J. E. Wappes col. ( USNM). Paratype male from NICARAGUA, Matagalpa: Montaña Selva Negra , 7.5 km N Matagalpa, N 13°00′01″ W 85°54′32″, 18 May 2000, 1300 m, R. D. Cave ( ACMT) .

Etymology. This beautiful new rhinotragine species is named for Dr. Chuck Triplehorn, retired Ohio State University Professor and longtime Curator of the OSU entomological collection (now bearing his name), to honor and recognize his lifetime of leadership in the Entomological Society of America and The Coleopterists Society (Past President of both organizations), for his personal policy of befriending all that crossed his path, and for his numerous contributions to our knowledge of the Tenebrionidae . Simply stated, Chuck Triplehorn is one of the most personable, enthusiastic, and positive persons we have ever met.

Figures

Figs. 1–3. Odontocera triplehorni, holotype female. 1) Dorsal habitus; 2) Ventral habitus; 3) Lateral habitus.