Agrilus acutus

Jendek, Eduard, 2004, Revision of Agrilus acutus (Thunberg, 1787) and related species (Coleoptera: Buprestidae), Zootaxa 507, pp. 1-19 : 15-16

Key to the Agrilus acutus and A. paradiseus species­groups

1 Tarsal claws bifid, cleft nearly to base, teeth subeaqual in form and legth, outer tooth straight, inner one curved inside forming with inner tooth of opposite claw pincettelike configuration; last tergite acuminate on apex; ovipositor short, subquadrate; pronotal sides subarcuate; elytra glabrous or with white ornamental pubescence; acutus ­group ....................................................................................................................... 2

­ Tarsal claws cleft near middle, inner tooth shorter and broader; last tergite spinate on apex; ovipositor very long; pronotal sides straight converging anteriorly; elytra with

golden adsutural toment in apical third; paradiseus ­group........................................... 6 2 Prosternal lobe deeply arcuately emarginate; elytra brightly bicolor, basal X­like mark and apex golden­green and white pubescent, remains deep­blue and glabrous; 9.5– 10.6 mm ................................................. A. cyaneofasciatus revalidated name, Fig. 6

­ Prosternal lobe subtruncate; elytra concolor in various hues of blue or green, rarely black ....................................................................................................................................... 3

3 Pronotal mediobasal impression missing or obsolete; elytra and episternites glabrous; laterosternites with white tomentose patches; males blue or green; females brightly bicolor, pronotum golden­orange, elytra blue or green; elytral apices with short outer spine; 6–8.6 mm .......................................................................... A. coelestis , Figs. 3, 4

­ Pronotal mediobasal impression deep; elytra with white ornamental pubescence; laterosternites and episternites with white tomentose patches; sexual dichroism not apparent; elytral apices with small or long outer spine................................................. 4

4 Elytra with postmedial and preapical strips of white hairs ........................................... 5

­ Only apex of elytra with white hairs; 5.9–7 mm ............................................................. .................................................................... A. acanthopterus revalidated name, Fig. 5

5 Pronotum wider (wide / length = 1.6–1.7); elytral apices with long outer spine ( Figs. 9–11 ); elytral pubescence less marked or faint; 5.5–8.9 mm ................ A. acutus , Fig. 1

­ Pronotum longer (wide / length = 1.4–1.55); elytral apices with small outer spine ( Figs. 12–15 ); elytral pubescence well marked; 6.6–10.2 mm ....................................... ......................................................................................... A. dianthus new status, Fig. 2

6 Prehumerus straight; pronotal disk with large medial, longitudinal impression; elytra with obvious adsutural impression; golden adsutural elytral toment extends to elytral apices; 10.9 mm .................................................. A. mikusiakorum new species, Fig. 8

­ Prehumerus strongly arcuate; pronotal disk with large mediobasal impression; elytra without adsutural impression; golden adsutural elytral toment not extending to apices; 9.2 mm .......................................................................................... A. paradiseus , Fig. 7

Figures

FIGURES 1 – 6. Habitus of: 1) Agrilus acutus (Thunberg), 7.7 mm; 2) A. dianthus Kerremans, 9.1 mm; 3) A. colestis Deyrolle, ɗ, 6.6 mm; 4) A. coelestis Deyrolle, Ψ, 7.0 mm; 5) A. acanthopterus Harold, 6.1 mm; 6) A. cyaneofasciatus Théry, holotype, 9.5 mm.

FIGURES 9 – 15. Variability of elytral apices: 9 – 11) Agrilus acutus (Thunberg): 9) Sumatra; 10) Nepal; 11) Sulawesi; 12 – 15) A. dianthus Kerremans: all from Thailand.

FIGURES 7 – 8. Habitus of: 7) Agrilus paradiseus Obenberger, lectotype, 9.2 mm; 8) A. mikusiakorum new species, holotype, 10.9 mm.