Lumawigia leytensis, Ohmomo, Sadahiro, 2009

Ohmomo, Sadahiro, 2009, Three new species of Coraebini Bedel, 1921 (Coleoptera: Buprestidae: Agrilinae) from the Leyte Island, Philippines, Zootaxa 2292, pp. 57-64 : 58-60

Lumawigia leytensis , sp. nov.

( Figs. 1, 4 )

Description (3 holotype). Elongate, subcylindrical; 10.5 mm in length from head to elytral apex, 3.6 mm in width between elytral margins opposite humeri; surface transversely rugulose, glabrous; integument iridescent, strong aeneous reflection with a dull green lustre, legs black with faint blue-green reflection. Head: frontovertex longitudinally depressed, projecting beyond anterior margin of eye; eyes relatively small, inner margins diverging dorsally, circumocular groove wide, entire; transverse preantennal groove entire; antennal cavities large, subcontiguous, closer to each other than diameter of cavity; frontoclypeus narrow, with two short parallel carinaebetween antennae, one on either side, narrow medially, widening slightly distally; distal margin narrow, subconvex; gena posterior to eye with oblique depression to receive basal antennomeres in repose; antennae relatively short, not reaching anterior 1/3 of pronotum; serrate from antennomere 5, antennomere 1 very stout, length subequal to 2+3+4, arcuate distally; 2 shorter, swollen, longer than 3 or 4, 3 smaller, more slender, shorter than 4, 4 slightly swollen distally; 5 triangular, longer than wide, 6 with length and width subequal, 7–10 each slightly more wide than long than preceeding; 11 oblong, arcuate distally. Pronotum narrowed in anterior 1/3, expanded in posterior 2/3, widest at about posterior 1/3; disc entire, rounded laterally; prelateral carina on either side not extending to either anterior or posterior margins; anterior margin strongly arcuate medially, posterior margin bisinuate, lateral margin biangulate, carina entire. Scutellum triangular, anterior margin convex, slightly overlapping adjacent pronotal area, lateral margins concave. Elytra wider than pronotum, widest opposite humeri; posterior to humeri lateral margin very gradually narrowing to about midpoint before gradually widening to posterior 1/3, then narrowing more strongly to separately attenuate apices; disc entire; lateroposterior margin serrulate; epipleuron short, extending only to opposite mesepimeron. Pygidium not visible posterior to elytral apices. Prosternum with strongly projecting broad, feebly bilobed ‘mentonniere’, notched laterally for antennomeres in repose; process slightly expanded posterior to procoxae, then narrowing sharply to rounded attenuate apex; abdominal ventrites 1, 2 subequal in length, longer than 3–5; 3, 4 subequal, each shorter than 5; 5 broadly arcuate apically; 1, 2 expanded laterally, visible from above lateral to elytral margins. Legs with pro- and mesotibiae arcuate; tarsi with pulvilli on tarsomeres 1–4; claws appendiculate. Male genitalia as in Fig. 4 .

Variation. There is no obvious sexual dichromatism or dimorphism. From the overall bronze of Fig. 1 , the color varies to bronze with a green tint to a stronger blue green, and is likely the result of the chemicals used to kill and preserve the specimens. The type series varies in size as follows: 33 (n = 22), length 9.5–10.3 mm, width 3.2–3.5 mm and ƤƤ (n = 4), 10.7–12.0 mm, width 3.6–4.0 mm.

Specimens examined. Holotype, 3 (CSCA): PHILIPPINES, Leyte Is(land), Mt. Balocaue (Balocawe), Mahaplag, 15–27.iv.2009, local collector; 25 paratypes: 2 33, 1 Ƥ, same data as holotype; 1 3: same data except Mt. Balocaue, 1–4.viii.2009; 1 3, same data except vi.2009; 9 33, 1 Ƥ, 2006.4, Mt. Balcaue (sic!), Leyte, Philippines, D. Mohagan leg.; 2 33, same data except June–Aug. 2006; 2 33, 1 Ƥ, same data except 2006.08; 4 33, 1 Ƥ, Leyte Is., Mahaplag, Hilusig, Mt. Balocaue, August 2009. Paratypes are deposited in CLBC and COTJ.

Etymology. The name for this species is obviously for the island of Leyte, in the southeast of the Philippine archipelago.

Remarks. This new species can immediately be separated from the generic type-species L. gibbicephala by being smaller (length: ca. 9.5–11.0 mm), bronze, green to blue-green and is from Leyte, while L. gibbicephala is larger (length: 14.0 mm), purple and is from northern Luzon.

Figures

FIGURES 1 – 6. 1 – 3, dorsal habitus; 4 – 6, male genitalia, dorsal aspect; 1, 4 — Lumawigia leytensis, sp. nov.; 2, 5 — Philippscelus gracilis, sp. nov.; 3, 6 — Coraebosoma viridis sp. nov. Scale bars = 1.0 mm.