Touroultia lordi Nearns and Tavakilian

Nearns, Eugenio H. & Tavakilian, Gérard-Luc, 2012, New Taxa and Combinations in Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) from Central and South America, with notes on additional taxa Eugenio H. Nearns, Insecta Mundi 2012 (231), pp. 1-24 : 8-11

Touroultia lordi Nearns and Tavakilian , sp. nov.

( Figures 4a, c )

Description. Male. Length 14.0– 14.5 mm (measured from vertex to elytral apices), width 6.0– 6.25 mm (measured across humeri). Habitus as in Fig. 4a . General form elongate-ovate, moderate-sized.

Integument dark brown or black, with pale testaceous and dark brown variegated pubescence; base of antennomeres with grayish or pale testaceous pubescence; elytra dark brown pubescence, with two irregularly-shaped, distinct regions of pale testaceous pubescence near middle.

Head with frons elongate, about 1.5 times width of lower eye lobe (as in Fig. 4c ). Eyes with lower lobes large, oblong; narrowest area connecting upper and lower eye lobes about 4 ommatidia wide.

Genae roughly subquadrate, about 1/3 as tall as lower eye lobes.

Antennae distinctly longer than body; antennal tubercles prominent, moderately separated; tubercles unarmed at apex; scape robust, clavate; antennomere III sinuate. Antennal formula based on antennomere III: scape=0.84; II=0.15; III=1; IV=0.85; V=0.76; VI=0.73; VII=0.74; VIII=0.74; IX=0.77; X=0.79; XI=0.87.

Pronotum subcylindrical, transverse, about 1.25 times as wide as long, sides feebly sinuate; disk with three moderately elevated tubercles, median tubercle oval, lateral tubercles more prominent; one basal transverse sulcus, and a more distinct oblique sulcus laterally which continues down the side.

Scutellum transverse, apex rounded.

Elytra about 1.6 times as long as width at humeri ( Fig. 4a ), about 3.75 times as long as pronotal length, about 1.6 times broader basally than pronotum at widest (at base); lateral margins slightly sinuate, gradually rounded to apices at apical 1/3, apices individually rounded; base of each elytron with a moderate gibbosity; basal 1/3 of elytra with surface coarsely, moderately to deeply, granulatepunctate; humeri prominent, anterior margin oblique, angle with moderate sized, obtuse tubercle.

Venter with procoxae large, globose, with small, obtuse tubercle; narrowest area of prosternal process between procoxae, about 1/5 as wide as procoxal cavity; apex of prosternal process subtriangular. Mesosternal process about 0.75 times as wide as mesocoxal cavity; mesosternal process feebly emarginate. Fifth sternite slightly longer than IV, apex feebly emarginate.

Legs moderate in length; profemora robust; meso- and metafemora clavate apically; tibiae slightly expanded apically; metafemora about 1/3 as long as elytra.

Female. Length 17.0 mm (measured from vertex to elytral apices), width 7.5 mm (measured across humeri). Similar to male except antennae about 1.3 times as long as body; procoxae without tubercle; elytra about 1.75 times broader basally than pronotum at widest (at middle); fifth sternite about 1.5 times as long as IV, with a median triangular impression.

Type Material. Holotype, male ( Fig. 4a, c ), “ Piste Coralie pk 12, 8 Janvier 1988, Guyane, Piégeage lumineux, Odette Baloup leg.” ( MNHN). Allotype, female, “ Guyane F. Route de Kaw , PK 33, battage, 19-27-XII-2003, Touroult leg.” ( JTPC). Two paratypes: one male, “ French Guiana, PK 37-40, Rte de Kaw, Jan 25-Feb 1, 1995, E. Giesbert, F. Hovore ” ( ENPC); one male, “ Montagne des Chevaux GF, piège à vitre, 08/II/2009, P.-H. Dalens leg.” ( PHDC).

Etymology. We take pleasure in naming this species for Nathan Patrick Lord, for his friendship and companionship on many collecting trips. The epithet is a noun in the genitive case.

Diagnosis and Remarks. This species is distinguished from its congeners by the combination of the following characters: base of antennomeres IV-XI with grayish or pale testaceous pubescence; base of elytra with surface coarsely, deeply, granulate-punctate genae roughly transverse, about 1/3 as tall as lower eye lobes; elytra with basal gibbosities strongly elevated. Touroultia lordi , sp. nov. is described from four specimens: three males and one female. Nothing is known about the habitat and behavior of this species; however, the holotype specimen was collected at light and the allotype specimen was collected beating vegetation.

Figures

Figure 4. Two species of Touroultia, gen. nov. a) T. lordi, sp. nov., holotype male, dorsal habitus. b) T. swifti, sp. nov., holotype male, dorsal habitus. c) T. lordi, sp. nov., holotype male, close-up of head. d) T. swifti, sp. nov., holotype male, close-up of head.