Confluentia flavomaculata, Santos-Silva & Galileo & Mcclarin, 2018

Santos-Silva, Antonio, Galileo, Maria Helena M. & Mcclarin, Jim, 2018, Division of the genera Sparna Thomson, 1864 and Carterica Pascoe, 1858 (Coleoptera, Cerambycidae, Lamiinae, Colobotheini) with description of six new genera and eight new species, Zootaxa 4407 (1), pp. 1-28 : 23-26

Confluentia flavomaculata sp. nov.

( Figs 62–66 )

Description. Female. Frons brown on wide central area, light yellowish brown laterally; vertex dark brown except slightly reddish central area between antennal tubercles and area close to prothorax; area behind eyes brown close to eye, reddish brown centrally, darker brown close to prothorax; genae mostly light yellowish brown, with irregular brownish area near apex; ventral surface brown interspersed with light yellowish brown areas. Scape, pedicel and antennomere III dark brown; antennomere IV with basal third pale yellow, gradually reddish brown and then darker brown on distal third; remaining antennomeres dark reddish brown, gradually brown toward XI. Pronotum dark brown except two wide reddish brown lateral bands, narrowed toward distal area. Prosternum and mesoventrite dark brown centrally, yellowish brown laterally. Mesanepisternum, mesepimeron and metanepisternum reddish brown. Metasternum reddish brown laterally, gradually dark brown toward center. Elytra dark brown to piceous lighter toward apex, except subtriangular yellow macula laterally near center of distal area, reaching epipleura but not including suture. Coxae reddish brown. Pro- and mesofemoral peduncles pale yellow; base of metafemora reddish brown; pro- and mesofemoral clubs dark brown dorsally, dark reddish brown ventrally, with darker areas interspersed; remaining surface of metafemora mostly dark brown; abdominal ventrites dark reddish brown with irregular dark brown areas interspersed.

Head. Frons with short yellowish white pubescence not obscuring integument. Vertex with brownish pubescence, partially obscuring integument, except nearly glabrous central area between antennal tubercles. Area behind upper eye lobes with brownish pubescence, not obscuring integument, gradually yellowish white toward lower eye lobe; area behind lower eye lobe with yellowish white pubescence close to eye, not obscuring integument, glabrous toward prothorax. Genae with pubescence as on frons, except glabrous narrow distal area. Antennal tubercles with pubescence as on frons frontally, more brownish toward upper eye lobe. Distance between upper eye lobes 0.14 times length of scape; in frontal view, distance between lower eye lobes 0.30 times length of scape. Antennae 1.95 times elytral length, reaching elytral apex at distal third of antennomere VII; scape gradually widened toward apex, with moderately long, erect, thick, dark setae ventrally; antennomeres III–VII with sparse, moderately short, erect dark setae ventrally (shorter and sparser toward VII); antennal formula (ratio) based on length of antennomere III: scape = 2.07; pedicel = 0.15; IV = 1.12; V = 0.95; VI = 0.95; VII = 0.88; VIII = 0.87; IX = 0.87; X = 0.80; XI = 0.65.

Thorax. Prothorax 1.35 times wider than long; widest area ending in acute backward directed angle. Pronotum slightly transversely sulcate near base, with 3 longitudinal gibbosities, one elliptical centrally, from near base to after middle, one elongate on each side, less distinct; moderately coarsely, sparsely punctate on basal quarter, more distinctly laterally, finer, sparser, slightly distinct on remaining surface; with yellowish brown pubescence not obscuring integument (appearing to be more brownish on dark areas due to color of integument). Sides of prothorax with pubescence same as pronotum. Ventral surface of thorax with yellowish white pubescence not obscuring integument. Prosternal process laminiform. Mesoventral process very narrow, narrowest area 1/13 width of mesocoxal cavity. Scutellum with yellowish brown pubescence not obscuring integument. Elytra. Coarsely, abundantly punctate except smooth dorsal area close to apex; humeral and dorsal carinae well-marked, innermost not distinctly fused with outermost; apex sinuous, notched close to outer spine, with rounded sutural angle; with yellowish white pubescence, more distinct on distal quarter (appearing to be more brownish on dark areas due to color of integument); with a few long, erect, dark setae on distal third. Legs. Femora with yellowish white pubescence not obscuring integument. Protibiae, in lateral view, slightly widened in distal third.

Abdomen. Ventrites with yellowish white pubescence not obscuring integument (more grayish white depending on angle of light source).

Dimensions (in mm), holotype female. Total length, 8.80; prothoracic length, 1.15; basal prothoracic width, 1.25; distal prothoracic width, 1.00 (1.20 before constriction); greatest prothoracic width, 1.55; humeral width, 1.80; elytral length, 6.80.

Type material. Holotype female from PERU, Junín: Sanibeni (rain forest), 14.VI.1935, F. Woytkowski col. ( MZSP).

Etymology. Latin, flavus = yellow; maculata = stained, spotted. Allusive to the yellow macula on elytra.

Remarks. Confluentia flavomaculata sp. nov. is similar to C. soror , but differs as follows: scape ( Fig. 66 ) wider, not narrowed near apex; antennomere III shorter than IV; widest area of prothorax forming acute backward directed angle ( Fig. 62 ). In C. soror , the scape ( Fig. 67 ) is slender and narrowed near apex, antennomere III is slightly longer than IV, and the widest area of prothorax has distinct spine directed outward ( Fig. 20 ).

Figures

FIGURES 62–67. 62–66, Confluentia flavomaculata, sp. nov., holotype female: 62, dorsal habitus; 63, ventral habitus; 64, lateral habitus; 65, head, frontal view; 66, scape.67, C. soror, scape, holotype.

FIGURES 18–27. 18–19, Sparna bosqi, holotype male:18, dorsal habitus (photograph by Laura Trinogga); 19, dorsal habitus, drawing by Gilmour (1954). 20, Carterica soror, holotype, dorsal habitus (from Bezark 2017). 21, Carterica soror, male (from Monné & Monné 2008). 22–23, Sparna migsominea, holotype male: 22, dorsal habitus (photograph by Laura Trinogga); 23, dorsal habitus, drawing by Gilmour (1950). 24–27, Pseudosparna flaviceps, male: 24, head, frontal view; 25, lateral habitus; 26, dorsal habitus; 27, ventral habitus.