Chrysina galbina Hawks, 2017

Hawks, David C., 2017, Five new species of Chrysina Kirby (Coleoptera: Scarabaeidae: Rutelinae), Insecta Mundi 2017 (544), pp. 1-9 : 2-3

Chrysina galbina Hawks , new species

Figures 2 , 9–11 .

Type data. Holotype male (deposited at USNM), labeled: a) “ PANAMA: El / Valle, Cocle Prov. / 22.IV.65 / SS & WD Duckworth”; b) on red paper, “ Chrysina / galbina male symbol / Hawks, 2017 / HOLOTYPE ” . Paratype male labeled: a) as holotype; b) on yellow paper, “ Chrysina / galbina male symbol / Hawks, 2017 / PARATYPE ”.

Description, holotype male. Length 25 mm, width 13 mm. Color of dorsal surface of head, pronotum, elytra, and pygidium mostly iridescent pale avocado green; pronotum, scutellum, and elytra edged with golden yellow; apical calli golden yellow; ventral surface of body iridescent pale blue-green; femora and tibiae iridescent yellow green; tarsi metallic copper; antennal scape coppery yellow dorsally; remainder of antenna brown.

Head. Form broadly rounded. Dorsal surface of head with moderate to small punctures, mixed with fine punctures visible only with magnification; punctures dense, becoming subcontiguous laterally. Clypeus strongly convex in lateral view. Anterior border of labrum sinuate either side of acuminate apex. Mandibles not visible in dorsal view. Eye size moderate with ratio of interocular distance to width of pronotum at base = 1: 2.2. Ratio of antennal club length to interocular distance = 1:1.8.

Thorax. Pronotal basal margin entire. Pronotal surface like that of head; punctures dense, becoming contiguous laterally. Mesosternal process moderately long, rounded at apex. Each elytron with 8 distinct, weakly impressed striae; interstriae irregularly punctate, punctures as on pronotum; epipleural fold broad near base, narrowing posteriorly, terminating just posterior to first abdominal sternite.

Abdomen. Surface finely rugose. Genitalia: Genital capsule length 8.0 mm. Parameres ( Fig. 9–11 ) reflexed ventrally, asymmetrical, weakly notched at true apex, but left paramere with long ventrallyhooked spine; ventral keel absent. Ventral plates nearly symmetrical, triangular.

Male paratype variation (n= 1): Length 25.5 mm, width 13 mm. Male paratype differs from the holotype in the following ways. Head, pronotum, and venter with overall color lighter yellowish green with somewhat purplish yellow areas. Pronotum with basal margin less distinct medially.

Diagnosis. Chrysina galbina is most similar to C. veraguana (Ohaus) . Chrysina veraguana differs conspicuously from C. galbina in aspects of coloration (e.g., pinkish tibiae, blue tarsi) and very different parameres with a long, ventrally-hooked projection on each side ( Morón 1990).

Etymology. The specific epithet is derived from the Latin galbus, meaning greenish-yellow, and galbina , pale green garments, in reference to its pale coloration. It is used as a plural noun in apposition.

Remarks. Females are unknown.

Figures

Figures 1–5. Chrysina adult dorsal habitus photographs (not to scale). 1) Chrysina falcifer Hawks, new species. 2) Chrysina galbina Hawks, new species. 3) Chrysina juxtaprasina Hawks, new species. 4) Chrysina paulseni Hawks, new species. 5) Chrysina sagacita Hawks, new species.

Figures 6–20. Chrysina genitalia photographs (not to scale). 6–8) Chrysina falcifer Hawks, new species, male genital capsule. 6) Dorsal view. 7) Ventral view. 8) Apical view. 9–11) Chrysina galbina Hawks, new species, male genital capsule. 9) Dorsal view. 10) Ventral view. 11) Apical view. 12–13) Chrysina juxtaprasina Hawks, new species, male genital capsule. 12) Dorsal view. 13) Ventral view. 14–16) Chrysina paulseni Hawks, new species, male genital capsule. 14) Dorsal view. 15) Ventral view. 16) Apical view. 17, 18) Chrysina sagacita Hawks, new species, male genital capsule. 17) Dorsal view. 18) Ventral view. 19) Chrysina juxtaprasina Hawks, new species, female inferior plates. 20) Chrysina paulseni Hawks, new species, female inferior plates.