Chrysodema (Gelaeus) oborili oborili, oborili, 2016

Frank, David & Sekerka, Lukáš, 2016, Revision of the subgenusGelaeus of Chrysodema (Coleoptera: Buprestidae: Chrysochroinae), Acta Entomologica Musei Nationalis Pragae 56 (2), pp. 671-719 : 702-703

publication ID	https://doi.org/ 10.5281/zenodo.5310800
publication LSID	lsid:zoobank.org:pub:4CBAE762-D52E-4BE6-99A3-8714B47141DFK
DOI	https://doi.org/10.5281/zenodo.5448863
persistent identifier	https://treatment.plazi.org/id/04548794-6949-FF89-0F04-FF64FCC2FD62
treatment provided by	Marcus
scientific name	Chrysodema (Gelaeus) oborili oborili
status	sp. nov.

Treatment

Chrysodema (Gelaeus) oborili oborili sp. nov.

( Figs 18–20 View Figs 18–23. 18–20 , 60 View Figs 56–71 )

Type locality. Indonesia, Maluku Province, Tanimbar Islands, Yamdena Island, 20 km NE of Saumlaki.

Type material. HOLOTYPE: ♂, ‘ INDONESIA. Tanimbar is. / YAMDENA ISL. 20km NE / of Saumlaki. 150m / 1.- 30.i.2007 M. Obořil lgt. [w, p]’ ( NMPC). PARATYPES (29 ♂♂ 17 ♀♀): 29 ♂♂ 16 ♀♀, same data as holotype (19 ♂♂ 10 ♀♀ MOOC, 7 ♂♂ 4 ♀♀ DFPC, 1 ♂ HMMG, 1 ♂ 1 ♀ MFNB, 1 ♂ 1 ♀ MHNG); 1 ♀, ‘Tanimbar Is., Yamdena / Mams village / 21km N of Saumlaki / 27.11.- 11.12.2005 / J. Horák leg. [w, p]’ ( NMPC). All specimens provided with an additional red printed label: ‘ HOLOTYPE [or PARATYPE respectively] [sex] / Chrysodema (Gelaeus) / oborili / oborili subsp. nov. / David Frank & / Lukáš Sekerka des. 2016 [year handwritten]’.

Description of holotype. Well preserved♂ specimen with all appendages. Length 28.25 mm, width 9.00 mm, length/width ratio: 3.14.

Head and pronotum olive green with violet reflections, particularly on impunctate parts. Scutellum olive green. Elytra dark metallic brown-violet, intervals more or less bronze ( Fig. 18 View Figs 18–23. 18–20 ), latero-apical slope dark violet, lateral serrations and apex dark teal ( Fig. 20 View Figs 18–23. 18–20 ). Thoracic ventrites olive green with violet reflections, abdominal ventrites largely dark violet, only basally more or less olive green with some golden reflections ( Fig. 19 View Figs 18–23. 18–20 ). Legs olive green with violet reflections, tarsi brown, last tarsomere metallic olive green.

Pronotum in general moderately strongly and sparsely punctate, only laterally punctures denser. Medial line well marked impunctate, appears slightly elevated. Medial impression sdistinctly impressed, moderately deep, irregularly and moderately densely punctate, punctures somewhat smaller than external ones. Principal impressions moderately deep, elongate, bordered internally by row of very fine punctures, centrally and externally smooth with only a few larger punctures. Basal impressions large, oval, broadly open and connected with principal impressions. Lateral impressions deep and impunctate.

Elytra without lateral impressions, moderately strongly punctate. Punctures moderately strong and moderately impressed. Rows visible from base to apex, weakly impressed, generally regularly arranged, internal ones irregularly double in apical half. Punctures in rows V–VIII in middle third of elytra quite regular and moderately dense, forming distinct rows not isolated groups, laterally slightly less regular; spaces approximately as wide as puncture diameter, flat not reticulate ( Fig. 20 View Figs 18–23. 18–20 ). Intervals basally flat, barely elevated, narrow, approximately 1–2× as wide as rows of punctures, with several punctures apically.

Mid femora in central part strongly shiny, very sparsely punctate, punctures large, on sides punctures smaller and dense.

Ventral side of body ( Fig. 19 View Figs 18–23. 18–20 ) overall coarsely and quite densely punctate, only central parts of thoracic and abdominal ventrites sparsely punctate. Lateral sides of abdominal ventrites laterobasally with patch of dense small punctures, rest sparsely punctate with larger punctures.

Aedeagus ( Fig. 60 View Figs 56–71 ) length 7.40 mm, width 1.43 mm, length/width ratio: 5.17. Apices of parameres obliquely truncate. Penis elongate, subparallel-sided.

Variation. Body♂♂ (n = 30) length: 24.75–29.75(32.00) mm, width: 7.75–10.25 mm, length/ width ratio: (2.94)2.97–3.22; ♀♀ (n = 16) length: (24.00)27.00–34.00(36.00) mm, width: (8.00)9.25–11.75(12.25) mm, length/width ratio: (2.73)2.80–3.00. Structure of pronotum quite variable, principal and medial impressions from shallow to moderately deep, latter sometimes slightly more coarsely punctate, principal impressions always appear impunctate except for inner row. Basal impressions always deep variously open and connected with principal impressions. Pronotum from nearly uniformly olive green to mostly violet but always impressions and punctures olive green; most specimens with extensive violet reflections. Intervals on elytra sometimes not differently coloured, mostly dark bronze or olive green-bronze. Elytra sometimes with very small apparent lateral impressions due to grouped small punctures. Sometimes also thoracic ventrites predominantly violet. Aedeagus (n = 5) length: 7.04–8.36 mm, width 1.38–1.53 mm, length/width ratio: 5.10–5.46.

Differential diagnosis. This species can be easily separated from other taxa of Gelaeus by brown or bronze violet colouration of elytra while remaining taxa are green, blue or black. It is similar only to C. (G.) iris , which however differs in the distinct iridescent pattern of the elytra. For distinguishing characters from C. (G.) oborili laratensis subsp. nov. see Differential diagnosis under the latter subspecies.

Etymology. This species is named after Martin Obořil (Olbramovice, Czech Republic), a specialist in Buprestidae and collector of most of the type series.

Distribution. Indonesia: Maluku Prov.: Tanimbar Isls.: Yamdena Is.