Oreogria astrapia, Telnov, 2023

Telnov, Dmitry, 2023, New and poorly-known taxa of Lagriinae Latreille, 1825 (Coleoptera: Tenebrionidae) predominantly from the collections of the Naturkundemuseum Erfurt. 1, Baltic Journal of Coleopterology 23 (1), pp. 1-33 : 1-33

Oreogria astrapia sp. nov. ( Fig. 19 )

urn:lsid:zoobank.org:act:7F280E59-AAE5-48BC-996E-A9C57287BECB

Type material designated. Holotype female NME: W-PAPUA Manokwari Prov. vic. Mokwam (Siyoubrig [sic!]),

1400-1800 m, 01°06.26'S, 133°54.41'E 24.- 28.II.2007 leg. A. Skale [printed] [correct name of the collecting locality is Syoubri].

Paratypes 2 females. 1ASC: same label as holotype; 1 DTC: W-PAPUA Manokwari Pr. vic. Mokwam (Siyoubrig [sic!]), 1400- 1800m, 01°06.26'S, 133°54.41'E, 24.- 28.II.2007 leg. A.Weigel UWS/ UWP [printed] [correct name of the collecting locality is Syoubri] .

Derivatio nominis. Named after Astrapia Vieillot, 1816, a genus of birds-of-paradise ( Paradisaeidae Swainson, 1825 ). The Arfak Mountains in general and surroundings of Mokwam and Syoubri villages in particular are famous places for watching Arfak endemic Arfak astrapia (Astrapia nigra (Gmelin, JF, 1788)). Noun in apposition.

Measurements. Holotype female, total body length 7.6 mm; head length 1.3 mm, head width across compound eyes 1.2 mm, pronotal length 1.1 mm, maximum pronotal width across base 1.3 mm, elytral length 5.2 mm, combined maximum elytral width across apical third 3.5 mm. Paratype female 7.8 mm long.

Description. Holotype female ( Fig. 19A ). Dorsal and ventral head black with dark blue metallic lustre, labrum and mouthpartsbrown. Pronotum dorsally and laterally black with dark green metallic lustre. Elytra uniformly black with dark purple metallic lustre on raised areas (see below). Ventral pterothorax and abdomen black to black-brown, last visible abdominal segments somewhat paler brown. Antenna, maxillary palps and legs pale brown, femora darkened in basal parts. Head subrectangular, slightly longer than wide, glossy dorsally and ventrally, flattened in dorsal aspect. Labrum shallowly emarginate at anterior margin. Epistoma deeply and broadly, V-shapely emarginate at anterior margin. Frontoepistomal impression deep. Anterolateral area

25 of frons barely projected laterodorsad to hold insertion of antenna. Compound eye moderately large, strongly reniform, deeplyU-shapely emarginate at anterior, subtruncate at posterior margin in lateral view, not touching insertion of antenna, slightly prominent laterally and dorsally. Interfacetal setae not observed. Minimum interocular distance slightly wider a length of dorsal eye portion. Tempus barely constricted posteriad, as long as dorsal eye portion, posterior temporal angle rounded, head base broadly concave. Head dorsum very roughly punctate with variably large punctures, deep. Intervening spaces generally narrower than punctures and elevated, glossy. Head dorsal setae yellowish, sparse, long, suberect to appressed. Few longer, erect tactile setae present on tempora and epistoma. Antenna short, filiform, extending slightly beyond mesocoxa when directed posteriad, three terminal antennomeres slightly thickened. Basal antennomere cylindrical, slightly thickened, about 1.5× as long as antennomere two. Antennomere two shortened. Antennomere three the longest among antennomeres 1–10, about 2.2× as long as antennomere two, about slightly longerthan antennomere four. Antennomeres 7– 10slightly thickened, punctate-tuberculate compared to nearly smooth fine basal antennomeres. Penultimate antennomere shortened, slightly widened distally. Terminal antennomere slightly elongated and thickened, apically acutely pointed, about 0.6 mm long, about 2.6–2.7× as long as penultimate antennomere and slightly shorter than combined length of two preceding antennomeres. Terminal maxillary palpomere small, securiform. Cranial neck not exposed from beneath anterior margin of pronotum, glossy. Pronotum narrowly trapezoid, slightly transverse, flattened and glossy dorsally, subtruncate at anterior andposterior margin, maximum width across base, slightly expanding medially on lateral margins and slightly constricted anteriad. Anterior and posterior margin not

26 beaded or rimed. Antero- and posterolateral angles rounded in dorsal view. Pronotal disc with vague transverse impression at anterior margin and with paired vague transverse elliptical postmedian impression. Dorsal pronotal punctures similar as those on dorsal head but less regular. Intervening spaces generally narrower than to about as wide as punctures, elevated or flat, glossy. Median part of pronotal disc with a small flat elliptical subopaque area of dense small punctures, intersected with vague longitudinal carina. Hypomeron glossy, irregularly transversely corrugate or smooth. Dorsal pronotal setation as that on head. Anterior margin of pronotum with a row of yellowish, moderately long, anteriad-pointed setae. Scutellar shield small, subtriangular, slightly inflated in dorsal aspect, densely punctured and appressedly setose, apically rounded. Elytron strongly widened in postmedian half, dorsally strongly convex, glossy, appears widely glabrous. Humeral callosity small, slightly prominent. Posterior sutural angle rounded in dorsal view. Elytral deflected lateral margin poorly visible in dorsal view. Elytral sculpture of dense, deep, variably large punctures and strongly elevated, strongly glossy and rather narrow intervening spaces building strongly rugulose pattern. Epipleuron complete, very broad in basal half of its length, glossy, in part rather coarsely punctate. Metathoracic wings fully developed (functional). Metasternum strongly convex in ventral aspect ( Fig. 19B ). Abdomen strongly convex in ventral aspect, appears inflated ( Fig. 19B ). Legs moderately long, slender, femora and tibiae glossy, with yellowish setae. All femora slender, not clavate. All tibiae slightly shorter than corresponding femora, all along with rather dense, long, erect setae, meso- and metatibia slightly arched. Basal metatarsomere shorter than combined length of remaining metatarsomeres. Female tergite VII broadly rounded at posterior margin. Female morphological sternite VII obtusely angulate medially at posterior margin.

Sexual dimorphism. Male is unknown.

Interspecific variability. Head with green metallic lustre in the paratype.

exposed elytral deflected lateral margin.

Type material designated. Holotype male NME: W-PAPUA Manokwari Prov. vic. Mokwam (Siyoubrig [sic!]), 1400-1800m, 01°06.26'S, 133°54.41'E 24.-28.II.2007 leg. A. Skale [printed].

Differential diagnosis. The new species is unique among all congeners due to the uniformly coloured elytra (elytra more or less distinctly bicoloured with variably large yellow areas in other congeners) and the long tempora. Tempus is about as long as dorsal eye length in O. gentilis Merkl, 1988 (Paniai Lakes, western part of the Central Cordillera of New Guinea), O. larvata Merkl, 1988 (eastern part of the Central Cordillera of New Guinea and Owen Stanley Range) and O. lutea Merkl, 1988 (Central Cordillera of New Guinea), however the elytra are largely yellow with the less coarse rugulose sculpture in all three species.

Ecology. Occurs in primary mid-montane rainforest at 1500–1800 m. Diurnal, observed on low vegetation.

Distribution. Arfak Mountains in Doberai Peninsula, New Guinea.

Note. Male remains unknown from this species so is the shape of meso- and metatibia and male terminal antennomere.

Figures

Fig. 19. Oreogria astrapia sp. nov. A – Holotype female, dorsal view; B – Holotype female, ventral pterothorax and abdomen, left lateral view [not to scale].