Neocrepidodera konstantinovi Baselga

Baselga, Andrés, 2006, The Northeastern Palaearctic light coloured Neocrepidodera Heikertinger, 1911 (Coleoptera: Chrysomelidae), with description of a new species, Zootaxa 1246, pp. 55-68 : 58-61

Neocrepidodera konstantinovi Baselga , sp. nov.

( Figs. 4 , 10 , 16 )

Type material

HOLOTYPE MALE: RUSSIA: Primorskiy Kray, Ussuriiskiy National Park, 6 July 1985 (Pisanenko leg.). Holotype is deposited in the collection of the USNM, Washington, USA; PARATYPES: CHINA: Dongbei Pingyuan [Mandtschuria], Hengdaohezi [Chandaoehelzy], 1 male; RUSSIA: Primorskiy Kray, Benevskoye [Benevskoe], 24 July 1989, 1 female (R. Dunda leg., DOBC); Primorskiy Kray, Khasan, 1–2 August 1991, 1 female (S. Kurbatov leg., BERC); Primorskiy Kray, Khasan, Zarubino, 20 August 1993, 1 male (V. Kusnetzov, BERC); Primorskiy Kray, Kraskino, Azajsanovka, 13–16 July 1992, 5 females (Snizek leg., DOBC); Primorskiy Kray, Lake Khanka, Kamen’Rybolov, 15 July 1910, 1 male (Tarobarov leg.); Primorskiy Kray, Novocugujevka, 20 July 1990, 2 males ( BERC, DOBC); Primorskiy Kray, Pos’yet, 3 females (A. Cherskii and V. Berger leg.); Primorskiy Kray, Slavyanka [Slavjanka], 13–17 August 1992, 1 male and 4 females.

(Snizek leg., DOBC); Primorskiy Kray, Slavyanka, Razonovia, 13–17 August 1992, 1 male (Boukal leg., BERC); Primorskiy Kray, Ussuriiskiy, Kaymanovka, 2–9 August 1992, 1 female (Snizek leg., DOBC); Primorskiy Kray, Ussuriiskiy National Park, 6 July 1985, 1 male (Pisanenko leg.). Paratypes are deposited in the collection of the USNM, Washington, USA, unless otherwise indicated: BERC and DOBC collections.

Etymology

This new species is named for Alexander Konstantinov, an outstanding Chrysomelidae researcher, in gratitude for the loan of many interesting specimens of Neocrepidodera and his always helpful advice.

Diagnosis

Length = 3.3–3.7 mm. Head: frontal tubercles not distinctly delimited posteriad, supracallinal sulcus effaced. First antennomere distinctly shorter than second and third together. Pronotum: constricted basally, narrowly margined. Anterolateral callosity markedly transverse, distinctly asymmetrical, rounded anteriorly and angulose posteriorly. Surface covered with coarse punctures on disc, minute on basal region, with only a few slightly greater punctures in antebasal transverse groove ( Fig. 4 ). Elytra: punctation completely seriate. Punctures large but relatively shallow, almost effaced to the apex. Interstriae flat and broader than striae. Base of sixth elytral stria impressed slightly deeper than the remaining striae. Aedeagus: strongly expanded in the apical fourth in ventral view, apex rounded, forming a poorly developed denticle, strongly deflexed ventrad in lateral view ( Fig. 10 ). Vaginal palpus: relatively short and thin, almost straight, tapering to the apex ( Fig. 16 a). Spermatheca: as in Fig. 16 b.

Description

Length = 3.3–3.7 mm. Body convex, about two times longer than wide. Colour yellowish brown. Head: slightly convex. Labrum bearing three pairs of setae in anterior margin. Clypeus bearing 4 pairs of long setae in anterior margin and many other shorter ones. Frontal ridge between antennal calli wide and flat. Antennal calli oval and flat, not distinctly delimited from vertex. Vertex smooth and shiny, with a strong deep seta­bearing puncture near each eye. Third antennomere about 1.5 times longer than second, equal or slightly shorter than fourth and shorter than fifth. Pronotum: 1.4 times broader than long, widest at middle, constricted basally, narrowly margined, provided with an antebasal transverse furrow delimited laterally by two longitudinal impressions. Anterolateral callosity markedly transverse, distinctly asymmetrical, rounded anteriorly and angulose posteriorly. Surface covered with coarse punctures on disc, minute on basal region, with only a few slightly greater punctures in the antebasal transverse groove ( Fig. 4 ). Elytra: moderately convex, about 1.3 times longer than broad, widest at middle. Humeral callus well developed, macropterous. Lateral margins explanate, apex rounded. Surface shiny. Punctation arranged in 10 distinct striae, scutellar stria short. Punctures large but relatively shallow, almost effaced to the apex. Interstriae flat and broader than striae. Base of sixth elytral stria impressed slightly deeper than the remaining striae, delimiting interiorly the humeral callus. Aedeagus: strongly expanded in the apical fourth in ventral view, apex rounded, forming a poorly developed denticle, strongly deflexed ventrad in lateral view ( Fig. 10 ). Vaginal palpus: relatively short, almost straight, tapering to the apex and where they are thin ( Fig. 16 a). Spermatheca: as in Fig. 16 b.

Remarks

The new species is close to N. sublaevis Motschulsky and N. motschulskii Konstantinov by the elytral punctation regularly seriate and the shape of vaginal palpi. However external characters as the anterolateral callosity of pronotum or the base of sixth elytral stria, as well as the structure of aedeagus show marked differences among the three taxa.

Distribution

The new species is known from the Chinese and Russian Far East, in Heilongjiang Sheng and Ussuriiskiy Kray regions respectively. The known distribution is comprised between 129 and 132 degrees E, 42 and 45 degrees N.

Figures

FIGURES 1 – 6. Pronota of Neocrepidodera spp. Circle and oval represent schematic samples of discal and antebasal punctation, respectively. (1) N. sibirica. (2) N. obscuritarsis. (3) N. interpunctata. (4) N. konstantinovi, paratype. (5) N. sublaevis, neotype. (6) N. motschulskii. Scale bar: 0.5 mm.

FIGURES 7 – 12. Median lobe of aedeagi of Neocrepidodera spp., ventral and lateral view. (7) N. sibirica. (8) N. obscuritarsis. (9) N. interpunctata. (10) N. konstantinovi, paratype. (11) N. sublaevis, neotype. (12) N. motschulskii. Scale bar: 0.5 mm.

FIGURES 13 – 18. Female genitalia of Neocrepidodera spp.: (a) vaginal palpi, (b) spermatheca. (13) N. sibirica. (14) N. obscuritarsis. (15) N. interpunctata. (16) N. konstantinovi, paratype. (17) N. sublaevis. (18) N. motschulskii. Scale bar: 0.5 mm.