Epania gressitti Huang, Chen & Cai,

Huang, Guiqiang, Cai, Bo, Xu, Wei & Chen, Li, 2014, A new species of EPania Pascoe (Coleoptera: Cerambycidae: Cerambycinae: Molorchini) from Papua New Guinea, Zootaxa 3774 (5), pp. 489-495: 490-493

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Epania gressitti Huang, Chen & Cai

sp. nov.

Epania gressitti Huang, Chen & Cai  , sp. nov.

( Figs 1–14View FIGURES 1 – 2View FIGURE 3View FIGURES 4 – 6View FIGURES 7 – 9View FIGURES 10 – 12View FIGURES 13 – 14)

Description. Male: body length 7.8– 11 mm; width at humeri 1.7–2.2 mm. Body metallic blue in general; head slightly green; antennae purple brown or castaneous with segments I –II metallic; pronotum green blue; elytra cobalt blue; ventral surfaces dark blue, abdomen tinged with green; fore and middle legs pitchy red-brown with a purple tinge, hind femora blue-black and hind tibiae blue-purple with a pitchy tinge.

Body largely covered with erect pale brown to silver hairs. Pronotum with dense silver pubescence laterally at apical and basal margins ( Figs 1–2View FIGURES 1 – 2 a); scutellum with dense silver pubescence; elytra with some distinctly paler hairs along suture posterior to scutellum ( Fig. 4View FIGURES 4 – 6); mesepisternum and mesepimeron with dense brown to silver hairs, metathorax with dense silver pubescence at sides of anterior margin ( Fig. 5View FIGURES 4 – 6); metepisternum with sparse silver pubescence at margin; metepimeron with dense silver pubescence; hind coxae with dense silver pubescence ( Fig. 6View FIGURES 4 – 6); abdominal segments II and III with a band of silver pubescence, segment IV with sparse silver pubescence at the side ( Fig. 7View FIGURES 7 – 9).

Head not as broad as prothorax, with dense and deep punctures; frons flat and grossly punctate, constricted by eyes ( Fig. 10View FIGURES 10 – 12). Antennae 1.5–1.97 times as long as body, scape and shiny about as long as segment III with some deep punctures; pedicel shiny; segment IV longer than III, V subequal to VI –X, XI longest.

Pronotum slightly longer than broad, broadest just behind middle, strongly and suddenly constricted near base, gradually and slightly narrowed towards apex, constricted above a short distance from apex; disc grossly and deeply reticulate-punctate, with punctures slightly smaller along median portion, apical and basal constricted portions largely impunctate ( Fig. 11View FIGURES 10 – 12); prothorax raised at apex ( Fig. 12View FIGURES 10 – 12). Prosternal intercoxal process with a triangular ( Fig. 13View FIGURES 13 – 14 a) or an oval ( Fig. 13View FIGURES 13 – 14 b) depression at apex.

Scutellum slightly broader than long, subtruncate posteriorly.

Elytra reaching hind coxae, each elytron narrowed and unevenly rounded apically, more than 2.0 times as long as broad; disc coarsely punctate, with an oblique raised area on inner portion, separated from external portion and apex by an obliquely longitudinal depression; distal portion raised. Ventral surfaces sparsely punctate.

Tibiae: densely punctate; hind femora barely reaching beyond abdominal apex; hind tibiae slightly arched; first hind tarsal segment subequal to next two segments combined.

Female: body length 7.5–9.2 mm; width at humeri 2.0–2.2 mm. Abdominal segments II and III with a band of silver pubescence at sides, and segment IV with or without sparse silver pubescence at sides ( Figs 8–9View FIGURES 7 – 9).

Antennae reaching abdominal segment I; segment X shortest among segments III –XI. Hind femora not reaching abdominal apex.

Prosternal intercoxal process with a heart-shaped ( Fig. 14View FIGURES 13 – 14 a) or sunflower-seed-shaped ( Fig. 14View FIGURES 13 – 14 b) depression at apex.

Diagnosis. This new species is similar to E. cobaltina  in body colour and pronotum covered with dense silver pubescence at each side of anterior and posterior constricted portions, scutellum silver pubescent, and elytra with some distinctly paler hairs along suture behind scutellum. However, it can be distinguished from E. cobaltina  by the abdominal segments II and III with a band of silver pubescence at the side, the abdominal segment IV with sparse or without silver pubescence at the side, the antennae reaching abdominal segment I, and the hind femora not reaching the abdominal apex in females.

Etymology. Named after the late Dr. Judson Linsley Gressitt (1914–1982) for his contribution to the studies of longicorn beetles from the Malay Archipelago and South Pacific.

Distribution. Papua New Guinea (East Sepik Province).

Host plant. Diospyros  sp., Ebenaceae  .

Specimens examined. Holotype: male, Papua New Guinea (East Sepik Province), 26.X. 2012, leg. Xiaohui Han (SWU). Paratypes: 4 males and 4 females, same data as holotype (SWU); 1 male and 1 female, same data as holotype ( PQSTP).