Pinacodera ruficornis Bates 1891

With character states of subgenus Pinacodera restricted as follows: OBL 10.50 – 13.17 mm. Length (n= 10 males, 10 females): head 0.92 – 1.20, pronotum 2.04 – 2.60, elytra 5.42 – 7.17, metepisternum 1.08 – 1.20 mm; width: head 1.96 – 2.56, pronotum 2.76 – 3.56, elytra 4.17 – 5.42, metepisternum 0.70 – 0.84 mm. Body proportions. HW/HL 2.03 – 2.33; PWM/PL 1.31 – 1.41; EL/EW 1.18 – 1.37; ML/MW 1.35 – 1.45. Color (Fig. 33). Dorsum of head and pronotum piceous; head typically rufo-piceous from hind margin of eyes forward; legs piceous to rufo- piceous; epipleuron and abdominal sterna rufo-piceous to piceous. Microsculpture. Elytra with mesh pattern isodiametric, microlines shallow in most specimens, in few specimens more so in basal third. Macrosculpture and pilosity. Dorsal punctures with setae present, erect and easily visible at low magnification. Ventral surface of head with evenly scattered setigerous punctures (bearing somewhat long pilose setae) from behind eye laterally toward mentum. Pronotum with evenly scattered punctures and pilose setae over entire dorsal surface. Elytral epipleuron with scattered punctures and pilose setae, setae longer and more regular in apical half. Fixed setae. Pronotum with two to five fixed setae along lateral margin; elytra with two setae in stria 3 and 16 to 18 umbilical setae; two setae on each of abdominal sterna III to VI; four to eight setae along apical margin of sternum VII, typically six. Luster. Elytra glossy. Hind wings. Markedly reduced. Length 1.09–1.49 mm, mean 1.28 mm. Male genitalia. Phallus (Fig. 34C) length 2.42 – 2.56 mm. Female genitalia. Gonocoxite 2 (gc2) (Fig. 35C) long and narrow.