Chrysodema (Chrysodema) dany, Frank & Sekerka, 2020

Frank, David & Sekerka, Lukáš, 2020, Studies on the genus Chrysodema (Coleoptera: Buprestidae: Chrysochroinae) part I., Zootaxa 4720 (1), pp. 1-62 : 30-31

Chrysodema (Chrysodema) dany sp. nov.

urn:lsid:zoobank.org:act:AD74608E-0568-437F-9A89-89B797D88961

( Figs 31–33 , 79 )

Type locality. Indonesia, Maluku Province, Haruku Island .

Type material. HOLOTYPE: ♂, ‘ INDONESIA, / Maluku Isls, / HARUKU Isl., / xii. 1993 [w, h]’ ( NMPC, ex coll. VKSC). PARATYPES (5 ♂♂, 3 ♀♀): 4 ♂♂, 2 ♀♀, same data as holotype (3 ♂♂, 1 ♀ VKSC, 1 ♂, 1 ♀ DFPC); 1 ♀, ‘ INDONESIA / HARUKU isl. / xii. 1993 [w, h] // Chrysodema / mniszechi / v. aeneoviolacea / Dét. T. LANDER 19 2007 [w, h/p]’ ( EJBS); 1 ♂, ‘ Indonesia / Ceram is. 12/1993 [w, p] // Chrysodema / mniszechi / aeneoviolacea Deyr. / det. S. Gottwald 2002 [w, h/p]’ ( SGBG). All specimens were provided with an additional red printed label: ‘ HOLOTYPE [or PARATYPE respectively] [sex] / Chrysodema (Chrysodema) / dany sp. nov. / David Frank & / Lukáš Sekerka det. I. 2019 [date handwritten]’.

Description of holotype. Well preserved ♂ specimen, left middle tarsus missing as well as left antennomeres IX–XI and right antennomeres VIII–XI. Length 28.75 mm, width 9.50 mm, length/width ratio: 3.03.

Body very dark metallic black-blue with golden-bronze punctate areas, elytral costae gradually more bluish towards apex of elytra. Ventral pads on all tarsomeres dorsally black, only their extreme base dark brown.

Head sparsely punctate, punctures foveolate, each bearing short seta, thus frons sparsely pubescent. Vertex more densely punctate, punctures bearing adherent setae.

Pronotum moderately densely macropunctate, shiny parts moderately densely micropunctate and weakly micro-reticulate. Central part of disc with shiny areas. Macropunctation laterally gradually coarser and denser. Each macropuncture bearing moderately long white adherent seta. Medial line well visible, sparsely micropunctate, more or less elevated along entire length. Medial impressions distinct but shallow. Principal impressions small, elongate, and moderately deeply impressed; their punctation internally forming line of small and very dense punctures. Lateral impressions shallow, barely marked, with several shallowly impressed punctures. Lateral margin carinate in basal 2/3, then widening and flattened reaching to approx. 3/4 length of pronotum.

Elytra regularly convex with distinctly elevated rounded and broad costae along suture and on intervals 2, 4, 6 and 8. Interval 6 shortened, reaching almost to 4/5 length and almost connected to interval 4. Costae moderately densely micropunctate (at magnification 50 ×) and each with a few additional confusedly dispersed macropunctures. Intercostal depressions deep and very densely macropunctate. Punctation completely irregular, not forming rows or groups of punctures. Each macropuncture bearing short adherent white seta, but impressions do not appear densely pilose. Interspaces at maximum 2 × as wide as puncture diameter but mostly as wide as puncture diameter.

Epipleura in basal 1/4 broad, densely punctate, then continuously gradually narrowing apically; punctures becoming finer and vanishing towards apex. Each puncture bearing long erect white seta.

Fore and mid femora in central part strongly shiny, sparsely punctate; hind femora distinctly more densely punctate. Each puncture bearing seta, setation particularly conspicuous on lower side of hind femora.

Ventral side of body ( Fig. 32 ) overall densely and moderately coarsely punctate, only central part sparsely punctate with large shiny impunctate areas. Entire lateral sides of all abdominal ventrites densely and almost uniformly punctate, only towards external margins punctation finer but even denser ( Fig. 33 ).

Aedeagus length: 8.00 mm, width: 1.56 mm, length/width ratio: 5.13. Parameres cymbiform, apices narrow and rounded. Penis narrow, elongate, subparallel-sided, ventral side slightly impressed, lateral sides with deep canaliculus, which has both margins equal ( Fig. 79 ).

Variation. Body ♂♂ (n=6) length: 25.00– 28.75 mm, width: 8.75–9.50 mm, length/width ratio: 2.86–3.03; ♀♀ (n=3): length: 30.00– 31.50 mm, width: 10.25–11.00 mm, length/width ratio: 2.86–2.98. Whole series quite constant with similar structure of pronotum and elytra. Medial and principal impressions in some specimens less impressed. Colouration slightly variable; two specimens have more distinct blue tinge on elytral costae in combination with golden punctures in intercostal depressions; two specimens blue-black with blue tinge also in intercostal depressions; remaining four specimens with intercostal depressions more or less bronze and costae distinctly bluish.

Aedeagus (n=3) length: 7.44–8.00 mm, width 1.50–1.56 mm, length/width ratio: 4.96–5.13.

Differential diagnosis. Chrysodema (C.) dany sp. nov. is similar to C. (C.) aeneoviolacea and C. (C.) sibuyanica as all three have dark dorsum. It can be easily distinguished by distinctly and densely micropunctate costae on elytra, thus surface appears less regular and whole dorsum appears less shiny while C. (C.) aeneoviolacea has nearly polished costae without obvious micropunctures and thus dorsum is strongly shiny. Chrysodema (C.) dany sp. nov. has elytra usually distinctly bicoloured, costae in dark tones of blue or turquoise and intercostal depressions golden while C. (C.) aeneoviolacea has dorsum bronze-brown, pronotum often with a slight violet tinge. Chrysodema (C.) sibuyanica differs in densely pubescent frons with long setae while C. (C.) dany has it sparsely and pubescent with short setae.

Etymology. This species is named after Daniel ‘Dany’ Frank, son of the senior author of this paper. The species epithet is a noun in apposition.

Distribution. Indonesia: Maluku Province, Haruku Island and? Seram Island (see remarks).

Remarks. One paratype was supposedly collected on Seram but since it was collected by native collectors and with the same date as the rest of the type series from Haruku it might have been mislabelled. On the other hand, it is possible that C. dany sp. nov. can be found in southern Seram as it is only 6 km air distance from Haruku. The occurrence on Seram should be verified with new material and until then we consider the occurrence there as doubtful.

Figures

FIGURES 31–36. Chrysodema, general aspect: 31–33—C. (C.) dany sp. nov. (holotype, ♂ 28.75 mm). 34–36—C. (C.) sibuyanica Fisher, 1924 (holotype, ♀ 30.00 mm). 31, 34—dorsal view; 32, 35—ventral view; 33, 36—lateral view.

FIGURES 73–95. Chrysodema, genitalia and terminal abdominal segments. 73—Chrysodema (Chrysodema) sonnerati Laporte de Castelnau & Gory, 1835 (Sri Lanka, MHNG); 74—C. (C.) lewisii lewisii Saunders, 1873 (holotype); 75—C. (C.) lewisii nakatai subsp. nov. (holotype); 76—C. (C.) tonkinea Kerremans, 1909 (lectotype); 77—C. (C.) vrabeci sp. nov. (holotype); 78—C. (C.) aeneoviolacea Deyrolle, 1864 (Kai Is., MHNG); 79—C. (C.) dany sp. nov. (holotype); 80—C. (C.) sibuyanica Fisher, 1924 (Sibuyan Is., NMPC); 81—C. (C.) wallacei Deyrolle, 1864 (Ambon Is, MNHN); 82—C. (C.) dohrnii Saunders, 1874 (Mindanao Is., DFPC); 83—C. (C.) fuscitarsis Kerremans, 1895 (Palawan Is., MNHN); 84—C. (C.) gottwaldi sp. nov. (holotype); 85—C. (Pseudochrysodema) coelestina Obenberger, 1922 (lectotype); 86—C. (P.) instabilis Deyrolle, 1864 (Halmahera Is., DFPC); 87—C. (C.) dohrnii (ibid., DFPC); 88—C. (C.) fuscitarsis (ibid., MNHN); 89—C. (C.) gottwaldi sp. nov. (holotype); 90, 91—C. (C.) aurostriata (lectotype); 92, 93—C. (C.) tonkinea (Hoa Binh, DFPC); 94, 95—C. (C.) vrabeci sp. nov. (Ban Huay Kon, MOOC). 73–79, 85–86—tegmen, parameres and penis; 80–84—aedeagus; 87–89—male ventrite VIII; 90, 92, 94—female ventrite VIII; 91, 93, 95—female tergite VIII. The scale bar does not apply to Figs 87–95.