Brasiella (Brasiella) bellorum Acciavatti 2011

General. Figs 1A, 2A. Body. Formelongate; head broad, eyes prominent, not bulging laterally; pronotum square; elytra broadened distad, apices evenly and separately rounded. Size.Males, length 6.3-6.8 mm, width 2.1-2.2 mm; females, length 6.7-7.2 mm, width 2.2-2.4 mm. Head. Figs 1B, 1D, 2D, 2F. Shiny dark black brown, blue brown or copper dorsally, shiny black green ventrally; entire surface glabrous except for two pairs of supraorbital sensory setae. Frons finely and longitudinally rugose. Vertex more coarsely rugose, transverse rugae along anterior margin narrow and irregularly arranged, 13-16 more or less complete longitudinal rugae between eyes and middle where rugae converge into an arcuate pattern; rugae transition abruptly into a posterior area with a finely and irregularly granulate surface. Eyes prominent, not bulging laterally, less prominent in female than male. Genae longitudinally rugose. Clypeus finely and irregularly granulate, narrowed mesad. Labrum testaceous with a dark brown margin, subrectangular, width to length ratio 3 in holotype male, ratio 2.5 in allotype female; anterior margin slightly sinuate, medial tooth minute or absent, sinuation larger, more prominent at middle in female than in male; posterior margin distinctly arcuate mesad; medial carina broad and distinctly raised; 6-9 setae in an irregular row near middle arranged on either side of medial carina. Maxillae and labium mainly testaceous, only distal palpal segments dark brown with metallic blue green reflections. Mandibles sexually dimorphic; in male, surface mainly testaceous, only teeth metallic green; in female, surface only testaceous in basal half, apical half and teeth shiny brown; mandibles symmetrical, four teeth distad of molar, apical tooth longest, first and third tooth coequal in length, second tooth shortest; gaps between teeth wider in female than in male; first and second teeth without a gap between them in male. Antennae 11 segmented; scape dorsally shiny green and ventrally pale yellow, occasionally pale yellow with a single subapical sensory seta; antennomeres 2-4 shiny green, glabrous except for a few, short erect setae along their length and distally; antennomeres 5-11 dull brown, sheathed with dense short sensory setae. Prothorax. Figs 1C, 1D, 2C, 2D. Pronotum shiny black brown to copper. Proepisterna shiny black green to copper, surface wrinkled dorsad. Prosternum shiny green. Pronotum glabrous except for short, decumbent, white setae distributed in several, irregular rows medially directed, originating close to and lying in a narrow band distinctly removed from lateral suture, in a sparse narrow band transversely and anteriorly oriented within broad anterior margin, and in a sparse narrow band laterally oriented on each side of midline extending nearly to the narrow posterior margin; transverse submarginal sulci distinct, anterior sulcus shallow, posterior sulcus deeper and deepest at posterior angles; transverse rugae within broad anterior margin irregular and shallow, interrupted at middle by an irregularly arranged pattern, within posterior margin more distinctly and deeply engraved especially medially and extending onto midline; surface sculptured by fine, transverse rugae angled on disc and interrupted by a finely engraved longitudinal midline, and more finely and irregularly sculptured elsewhere. Proepisterna glabrous except for white, erect and appressed setae arising from small setigerous punctures scattered over most of the surface in males, only in ventral half in females. Prosternum glabrous, surface smooth. Pterothorax. Figs 1C, 2C. Mesepisterna glabrous except for appressed setae near ventral margin; female coupling sulcus represented by a shallow, circular depression medially situated with a slightly deeper center, a distinct groove extends only dorsally from center, surface smooth below center. Mesepimeron with sparse appressed setae. Metepisterna with scattered appressed setae, more abundant in male than female. Prosternum and mesosternum glabrous, smooth to slightly wrinkled; metasternum glabrous except for long, dense white appressed setae laterad, surface smooth mesad and coarsely sculpted laterad where setae originate. Scutellum triangular, cupreous. Legs. Figs 1A, 2B. Segmentstestaceous brown with metallic brown green reflections. Coxae shiny metallic brown green; trochanters testaceous or dark brown; femora and tibiae testaceous with metallic green reflections anteriorly in most specimens, metallic green except for testaceous distal end of each segment in other specimens; tarsomeres dark metallic violet black or brown; white, appressed setae on front and middle coxae, and laterally on hind coxae; erect setae and suberect closely spaced forming several regular and irregular rows on all femora; setae widely spaced in a few rows on all tibiae; middle tibiae with patch of appressed setae dorsally along distal half; tarsomeres with short scattered setae on ventral surface; distal tarsomeres with two asymmetrical rows each with a few to several small, erect setae; an erect subapical seta present only on front trochanter, absent on middle and hind trochanters; males with dense pad of erect setae ventrally on proximal three tarsal segments; tarsal claws small. Elytra. Figs 1A, 2A. Form narrow in male, broadened distad and broadest at outer apical angle in female; evenly curved along posterior margins with apices separately rounded; sutural spine small and inconspicuous, feebly withdrawn from apex; posterior margins finely microserrulate. Surface finely granulate, impunctate, numerous small, irregular, metallic green or blue green flecks of various sizes scattered over a dull, dark copper brown background; elytral pattern thin, narrow slightly contrasting with the darker elytral ground color; setigerous punctures with short, erect, transparent setae indistinct in subsutural rows on disc, but distinct at elytral base, and at inner humeral angles, each surrounded by a metallic fleck slightly larger than flecks elsewhere on elytra; surface slightly depressed in humeral area and on disc creating a slight but distinct raised area basally. Elytral markings tawny, forming pattern of narrow markings reduced in width in most specimens, or partially missing in other specimens; pattern consisting of a narrow humeral lunule thinned medially and broken before terminating as a spot on disc in most specimens, or reduced to a small dot in other specimens; middle band sinuate with irregular margins, thinned medially or broken, slightly enlarged near suture, slightly expanded along lateral margin in most specimens, or reduced to small terminal spots in a few specimens; apical lunule narrow and broadened along suture in all specimens examined. Elytral epipleura testaceous except for a narrow, metallic green to copper green band along dorsal margin. Abdomen. Figs 2B, 2E. Surface of 1st-5th sterna shiny black with green reflections, 6th sternum entirely shiny black to black brown; posterior margins of male 3rd-5th sterna and female 3rd-4th sterna narrowly black; posterior margin female 5th sternum broadly black; 3rd-5th sterna medially smooth with scattered, fine, erect setae in both sexes; male 1st-6th sterna and female 1st-5th sterna laterally covered with dense, scattered, appressed white setae and roughened from setal punctures; male 6th sternum glabrous medially with a broad, deep concave notch; female 5th abdominal sternum with moderately raised transverse wrinkles and a wide membranous band at midline extending anteriorly along most of the sternum from a large membranous wedge along posterior margin; female 6th sternum entirely glabrous, posterior margin with a row of 6-10 erect spines and with a large lateral gibbosity on each side. Male Genitalia.Figs 1E, 1F, 1G. Shape narrow near base, broad in middle half, slim distally with neck short and narrow, apical hook evenly rounded, tip shortened and at acute angle to aedeagus, aedeagus apical spine field forming a long and narrow pad. Aedeagus inner sac sclerites: stylet tip short and bent; shield rounded distad; large tooth short, broad and rounded at tip with large root and small dark fields; arched piece long and thin.

Fig. 22. DOMINICAN REPUBLIC: La Vega Province, El Convento, Rancho Guaraguao, and Constanza. This species likely occurs in suitable habitats throughout the Constanza Valley and surrounding mountainous areas of the central portions of the Cordillera Central.