Callia thomsoni, Wappes, James E., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2017

Wappes, James E., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2017, New species, new records and notes on Lamiinae from Neotropical Region (Coleoptera, Cerambycidae), Zootaxa 4290 (1), pp. 83-98 : 87-89

Callia thomsoni sp. nov.

( Figs 8–12 )

Description. Female. Head and pronotum light reddish-yellow except dark brown apex of genae and black distal half of mandibles; prosternum slightly darker than pronotum; basal 3/4 of scape and narrow basal ring on antennomeres III–VII reddish-brown; remaining areas of scape, pedicel and antennomeres dark-brown, almost black; ventral side of meso- and metathorax dark brown laterally, gradually dark reddish-brown toward central area; scutellum dark brown; elytra dark reddish-brown from base to after middle, except dark brown punctures, entirely dark brown on remaining surface; procoxae and profemora light reddish-brown except darker brown apex; mesocoxae reddish-brown; mesofemora mostly brown, with irregular dark reddish-brown areas; metacoxae mostly dark brown with irregular dark reddish-brown areas; metafemora dark brown; protibiae reddish-brown on basal third, black on remaining surface; meso- and metatibiae reddish-brown on base, black on remaining surface; tarsi black; abdominal ventrite I dark reddish-brown on center of basal 2/3, dark brown on remaining surface; abdominal ventrites II–V dark brown.

Head. Frons finely, sparsely punctate; with abundant yellow pubescence partially obscuring integument, interspersed with long, erect yellow setae, dark brown close to base of antennal tubercles. Area between antennal tubercles slightly depressed, impunctate; with yellow pubescence partially obscuring integument. Remaining surface of vertex finely, sparsely punctate, except smooth area close to prothorax; with yellow pubescence partially obscuring integument (pubescence less distinct depending on angle of light source), interspersed with long, erect, yellow setae, nearly glabrous close to prothorax. Antennal tubercles with reddish-brown pubescence not obscuring integument, interspersed with long, erect dark setae. Median groove distinct from clypeus to prothoracic margin. Area behind upper eye lobes with wide yellow pubescent band close to eye, glabrous on remaining surface; area behind lower eye lobes with narrow band of yellowish-white pubescence close to eye (widened toward ventral side), interspersed with a few long, erect yellow setae, glabrous on remaining surface. Genae very finely, transversely striate except smooth area close to apex and eye; with yellowish-white pubescence partially obscuring integument, except for disjunct glabrous smooth areas. Gulamentum smooth and glabrous, except for sparse yellowish-white pubescence interspersed with a few long, erect setae close to anterior elevated region. Upper eye lobes at its widest point with 8 rows of ommatidia; region of connection between eye lobes with 4 rows of ommatidia; distance between upper eye lobes 0.50 times length of scape; in frontal view, distance between lower eye lobes 0.95 times length of scape. Antennae 1.5 times elytral length, reaching elytral apex at basal third of antennomere X; scape and pedicel with erect, dark setae throughout; antennomeres III–X with long, erect, sparse dark setae ventrally; antennal formula (ratio) based on length of antennomere III: scape = 1.02; pedicel = 0.19; IV = 1.00; V = 0.95; VI = 0.89; VII = 0.87; VIII = 0.80; IX = 0.76; X = 0.65; XI = 0.65.

Thorax. Prothorax transverse, 1.7 times wider than long (including lateral tubercles); lateral tubercles large, conical, with acute apex directed backward; sides subparallel from base to lateral tubercle, convergent from tubercle to distal margin. Pronotum slightly, subelliptically depressed at each side of basal central region; moderately coarsely, sparsely punctate throughout; with yellow pubescence partially obscuring integument, sparser on depressed areas and distal fifth (this latter slightly widened toward sides); with long, erect, moderately abundant yellow setae. Sides of prothorax moderately coarsely punctate (punctures more abundant than on pronotum); with yellow pubescence not obscuring integument. Prosternum nearly smooth, with abundant yellowish-white pubescence not obscuring integument; with some long, erect, yellowish setae centrally. Prosternal process narrowed centrally, longitudinally depressed; with yellowish-white pubescence not obscuring integument. Mesosternum with sparse yellowish-white pubescence centrally, distinctly denser laterally. Mesepisternum, mesepimeron and metepisternum with yellowish-white pubescence partially obscuring integument. Metasternum with yellowish-white pubescence, partially obscuring integument laterally, gradually sparser toward central discrimen, interspersed with long, erect yellowish-white setae. Scutellum with yellowish-white pubescence not obscuring integument. Elytra. Humerus somewhat projected forward; coarsely, abundantly punctate on light area, gradually finer, sparser on dark area; with minute, dense grayish pubescence not obscuring integument (more distinct on dark area); with long, erect, abundant black setae throughout; apex individually rounded. Legs. Femora with yellowish-white pubescence not obscuring integument, interspersed with long, erect, dark setae (primarily on metafemora). Tibiae with abundant, sub-erect black setae.

Abdomen. Ventrites with grayish-white pubescence partially obscuring integument, interspersed with long, erect, sparse dark setae, gradually more abundant toward ventrite V. Ventrite V with narrow, longitudinal sulcus at center of basal third, widely, slightly depressed on central distal half; apex truncate.

Dimensions (mm). Total length, 8.65; prothoracic length, 1.35; basal prothoracic width, 1.65; distal prothoracic width, 1.50; widest prothoracic width (between apices of lateral tubercles), 2.30; humeral width, 2.65; elytral length, 6.50.

Type material. Holotype female from PERU, Madre de Dios: Puerto Maldonado (12.56104° / 71.10645°; 267 m), 22.XI.2013, T. Pérez col. ( MHNJP).

Etymology. Named in honor of James Thomson, 19th century entomologist who, among other distinctions, is the author of the tribe Calliini .

Remarks. Callia thomsoni sp. nov. is similar to C. divisa Galileo & Martins, 2002 (described and known only by the holotype male from Brazil, Mato Grosso), but differs as follows: area of connection of eye lobes narrow, with 4 rows of ommatidia ( Fig. 12 ); lateral tubercles of prothorax with acute apex directed backward ( Fig. 12 ); scutellum larger ( Fig. 12 ); elytral punctures on light area of elytra distinctly contrasting with surface around them ( Fig. 8 ); elytra with dark erect setae throughout. In C. divisa ( Fig. 13 ), the area of connection between eye lobes is wider, with distinctly more than 4 rows of ommatidia, lateral tubercles of prothorax with blunt apex not directed backward, scutellum smaller, elytral punctures on light area of elytra not contrasting with surface around them, and elytra with long, erect yellowish setae, black only on part of darker area (Juan Pablo Botero – personal communication). Although the holotype of C. thomsoni is a female and that of C. divisa a male, we did not find the sexual dimorphism differences which have been attributed to other species in the genus (for example, see Martins & Galileo 2006).

Callia thomsoni sp. nov. can be included in the alternative of couplet “18” from Galileo & Martins (2002) (translated):

18(17). Pedicel and antennomeres III–VII with light basal ring; elytral integument mostly reddish on basal half............... 18’ - Antennae entirely black; elytra lighter only at basal extreme................................................19 18’(18). Area of connection between eye lobes narrow, with 4 rows of ommatidia; lateral tubercles of prothorax with acute apex directed backward; elytral punctures dark on light area of elytra; elytra with dark setae throughout. Peru (Madre de Dios .................................................................................. C. thomsoni sp. nov. - Area of connection between eye lobes wide, with more than 4 rows of ommatidia; lateral tubercles of prothorax with blunt apex not directed backward; elytral punctures not dark on light area of elytra; elytra with dark setae only at part of dark region. Brazil (Mato Grosso)............................................... C. divisa Galileo & Martins, 2002

Figures

FIGURES 8 – 13. 8 – 12, Callia thomsoni sp. nov., holotype female: 8, dorsal habitus; 9, ventral habitus; 10, lateral habitus; 11, head, frontal view; 12, pronotum. 13, C. divisa, holotype male (by Juan Pablo Botero).