Pinacodera complanata (Dejean 1826)

With character states of subgenus Pinacodera restricted as follows: OBL. 9.5 – 12.5 mm. Length (n= 24 males, 17 females): head 0.88–1.08, pronotum 1.72 – 2.28, elytra 5.33 – 7.17, metepisternum 1.26 – 1.64 mm; width: head 1.62 – 2.16, pronotum 2.16 – 2.92, elytra 3.58 – 5.08, metepisternum 0.62 – 0.80 mm. Body proportions. HW/HL 1.74 – 2.08; PWM/PL 1.18 – 1.33; EL/ EW1.35 – 1.59; ML/MW 1.89 – 2.05. Color (Fig. 4). Dorsum of head entirely ferruginous to rufo-piceous; pronotum ferruginous with lateral margins ranging from translucent to lighter and creamy in appearance; elytra ranging from ferruginous to rufo-piceous, few specimens with basal third of elytra lighter in color, lateral margins translucent to somewhat translucent; antennae and other appendages ferruginous to brown. Microsculpture. Microlines absent from head capsule and pronotum; elytra with mesh pattern isodiametric, microlines distinct. Macrosculpture and pilosity. Dorsal punctures with short setae present, few to many visible on head, pronotum (Fig. 5), and at base of elytra (occasionally few setae extended toward apex of elytra). Elytral epipleuron with setae visible, extended to constriction. Elytral intervals with one to two rows of scattered punctures in intervals 1, 3 and 5 and two to three (rarely four) in intervals 2, 4, 6 and 8. Fixed setae. Pronotum with two setae along each margin; 15–16 lateral (umbilical) setae. Two setae on each of abdominal sterna III to VI, four setae along apical margin of sternum VII (Fig. 3). Luster. Elytra dull. Head. Fine scattered setigerous punctures from hind portion of eye to constriction of neck; also additional fine punctulae from base of neck extended laterally toward clypeus, otherwise glabrous. Pronotum. Disc with setigerous punctures scattered throughout, more densely and evenly so along margins, longest setae along anterior angles (Fig. 5); posterior angles obtuse; posterior margin slightly lobate; basolateral impressions shallow. Elytra. Elytral apices truncate, striae shallowly impressed and punctulate throughout length; intervals flat; a noticeable contrast of punctures extended interval lengths; scattered arrangements of one to two rows on intervals 3, 5 and 7 and scattered arrangements of two to four rows in intervals 2, 4, 6 and 8. Most specimens with a single row of punctures on 3, 5 and 7 and three rows on 2, 4, 6 and 8; epipleuron with setigerous punctures from base to constriction, in a few specimens beyond to apex. Hind wings. Macropterous. Legs. Male tarsi with adhesive vestiture ventrally, two rows of squamo- setae on tarsomeres 1–4 of foreleg and 1–3 of middle leg. Male genitalia. (Fig. 6A) Length 1.88 – 2.00 mm. Endophallus with endophallic plate (ep) almost flat and apical endophallic lobe (ael) enlarged. Female genitalia. Gonocoxite 2 (gc2) (Fig. 6B) distinctly, obliquely truncate.