Polydrusus (Conocetus) crinipes, Christoph Germann, 2018

Christoph Germann, 2018, A review of Conocetus Desbrochers des Loges, 1875, subgenus of Polydrusus Germar, 1817 (Coleoptera, Curculionidae, Entiminae), European Journal of Taxonomy 392, pp. 1-39 : 7-9

Polydrusus (Conocetus) crinipes sp. nov.

urn:lsid:zoobank.org:act:897EA3D6-350A-4C5A-8E6C-02CF14DCF3E8 Figs 3A–B , 7E , 9G , 11

Etymology

The name ‘ crinipes ’ derives from the characteristic hairs ‘crinis’ on the legs ‘-pes’, shared only with P. rhodiacus within the subgenus.

Type material

Holotype

GREECE: ♂, Korfu, Airportlagune , 28 Jul. 1989, leg. W. Suppantschitsch ( SDEI) // [red label:] Holotype Polydrusus (Conocetus) crinipes sp. nov. des. C. Germann 2016 (SDEI).

Type locality

GREECE: Corfu Island.

Paratypes

BULGARIA: 1 ♂, Pirin, Sugarevo, 700–900 m, 25 Jun. 1983, leg. R. Borovec (cRB); 1 ♀, Sandanski, Struma-Ufer, 4 Jun. 1983, leg. L. Behne (SDEI); 3 ♂♂, 3 ♀♀, Sandanski, Strumatal, 27 Jun. 1983, leg. L. Behne (SDEI, cRB); 2 ♂♂, 6 ♀♀, Sandanski, Strumaufer, 4 Jun. 1983, leg. L. Behne (SDEI); 1 ♂, Pirin, Kasina, 1300–1400 m, 28 Jun. 1983, leg. R. Borovec (cRB); 1 ♂, 1 ♀, Sandanski, Jun. 1970, leg. D. Marek (cJF).

GREECE: 13 ex., same data as holotype (SDEI, NMBE, cCG); 2 ex., Korfu, Ropa Tal, 25 Jul. 1989, leg. W. Suppantschitsch (SDEI); 6 ex., Corfu, leg. Paganetti (SDEI); 1 ex., Corfu, leg. Paganetti (cJF); 2 ex. Corfu, leg. Paganetti (BMNH); 1 ♂, Corfu, leg. Paganetti (NMBE); 1 ex., Corfu, leg. Paganetti (cRB); 1 ex., Corfu, Roda, 19 May–2 Jun. 2012, leg. Bahr & Winkelmann (cHW); 1 ♂, Corfu, Mt Pandokratoras, Lafki, 420 m, 21 May 2012, leg. Bahr and Winkelmann (cHW); 2 ex., Corfu, Agios Georgios, 6–14 Jun. 2002, leg. K. Schön (cRB); 1 ex., Corfu, Agios Georgios, 19–27 Jun. 2003, leg. L. Korission and K. Schön (cRB); 2 ex., Corfu, Roda, 16–23 Jun. 1995, leg. Czető Zsolt (cRB); 1 ex., Corfu, Agios Georgios, Argirades, 11–19 Jul. 2006, leg. P. Tyrner (cRB); 6 ex., Corfu, leg. Paganetti (NMB); 4 ♂♂, 1 ♀, Macedonia, Piera, Paralia, 1–15 Jun. 2013, leg. F. Bahr, J. Messutat and H. Winkelmann (cJM); 1 ex., Macedonia, Piera, Paralia, 15 Jun. 2013, leg. F. Bahr, J. Messutat and H. Winkelmann (cHW); 2 ♂♂, Macedonia, Piera, Mt Olympus, 3 Jun. 2013, leg. F. Bahr, J. Messutat and H. Winkelmann (cJM); 6 ♂♂, 2 ♀♀, Macedonia, Piera, S Katerini, S of river, 40°14′ N, 22°30′ E, 35 m, 3 Jun. 2013, leg. F. Bahr, J. Messutat and H. Winkelmann (cJM); 3 ex., C-Maced. (FO3) Piera, Katerini S, 3 Jun. 2013, F. Bahr, J. Messutat and H.Winkelmann (cJM); 1 ♂, 1 ♀, Macedonia, Piera, Paralia, beach, 6–9 Jun. 2013, leg. F. Bahr, J. Messutat and H. Winkelmann (cJM); 1 ♂, Nestos-Delta, Chrysoupolis, 29 Jun. 1982, leg. Kessler (SDEI); 1 ♀, Nestos-Delta, Chrysoupolis, 30 Jun. 1982, leg. Kessler (SDEI); 1 ♀, Macedonia, Nestos-Delta, Chrysoupolis, 26 Jun. 1982, leg. Kessler (SDEI); 1 ♂, Polikastro, 8 km N of Axioupoli, 28 Jun. 1997, leg. C. Bayer (cHW); 2 ♂♂, 2 ♀♀, Polikastro NW, 8 km N of Axioupoli, 28 Jun. 1997, leg. Messutat (cJM); 1 ♂, Graecia, leg. Krüper (SDEI); 1 ♂, 1 ♀, Macedonia, Piera, Mt Olympus, 600–1050 m, 3 Jun. 2013, leg. F. Bahr, J. Messutat and H. Winkelmann (cHW); 2 ex., Olympos, Plaka, 12–14 Jul. 1985, leg. W. Suppantschitsch (SDEI); 1 ex., Trikala, n. Kalambaka (Fluss), leg. W. Ziegler, 11 Jun. 2012 (cHW); 1 ex., Nestos-Delta, 10 km E of Nea Karia, 40°53′37″ N, 24°50′17″ E, 20 m, 9 Jul. 2003, leg. Bahr, Bayer and Winkelmann (FO8); 1 ex., Prov. Thesprotia, Kestrini b. Igoumenitsa, 6 Jun. 2012, leg. W. Ziegler (cHW); 1 ♀, Xanthi, Nestos-Delta, Nestosufer, 41°00′32″ N, 24°44′04″ E, 25 m, 29 May 2016, leg. C. Germann (cCG); 1 ♂, 1 ♀, Xanthi, Nestos-Delta, N Chrysoupoli, Ruderalfläche, 41°00′46″ N, 24°42′39″ E, 40 m, 29 May 2016, leg. C. Germann (cCG); 1 ♂, 3 ♀♀, Xanthi, 2.5 km NE of Chrysoupoli, Nestos-Delta, Nestosaue und Ufer, 41°00′32″ N, 24°44′04″ E, 25 m, 29 May 2016, leg. C. Braunert (cCB).

Description

LENGTH. 3.7–4.3 mm, holotype 4.2 mm; females 4.2–5.0 mm.

COLOUR. Body colour reddish-brown. Head, pronotum and elytra set with oval to roundish, vivid green shimmering scales and long, pointed, light brownish adjacent hairs.

HEAD. Rostrum short and wide, almost twice as wide as long. Eyes oval, irregularly bulged, strongest in first third, well protruding from outline of head. Pterygia well developed, visible from above. Pterygial span as wide as frons just behind the eyes. Rostral dorsum and frons between the eyes flat, upper side of head behind eyes slightly bulged. Rostral dorsum irregularly striato-punctuate with carinula in the middle. Epistome well visible, V-shaped, margin glossy. Mandibles strong, left mandible above right one, thus fore margin of epistome assymmetrically protruding leftwards. Antennal scrobes lateral, short and triangular, lower margin buckled downwards, with obtuse angle. Temples visible, ½ the maximal eye length.

ANTENNAE. Long and slender, antennal funiculus longer than scape, reddish-brown, scape bowed, clubbed towards apex, reaching backwards into first third of pronotum. Antennal funiculus with 7 antennomeres: 1 st longer than 2nd and 3rd; 5th to 7th of same length; 4th slightly longer than 3rd and 5th to 7th; club with 3 segments, elongate-oval.

PRONOTUM. Transverse (L/W: 0.7–0.8), sides slightly rounded, widest just behind the middle, constricted just before fore margin and simply rounded towards hind margin. Hairs and oval to lanceolate greenish

scales directing towards an imaginary line in the middle of the disc. Scales at disc of pronotum narrower oval.

ELYTRA. L/W: males 2.0, females 1.8–1.9. Elongate, widest at shoulders and almost parallel (males) or widest behind the middle (females), round-pointed towards apex, shoulders present, with hind wings. Striae with shorter, adjacent white hairs. Interspaces with long, light brownish, adjacent, pointed hairs standing irregularly. Vestiture consisting of regular-standing broad oval to roundish scales with vivid green shimmer. Scales narrower along suture.

LEGS. Strong, reddish-brown coloured to yellowish, all femora edentate, set with whitish hairs with a pearl-like lustre. Tarsi with first tarsomere twice as long as second, third bilobed, about 1.5 times as wide as the second, fourth one minute, claw segment as long as second and third together, claws fused at base.

MALE GENITALIA. Penis with apophyses shorter than median lobe, this attenuated towards broad triangular apex with blunt tip, in lateral view flattened ( Fig. 7E ). Internal sac wrench-like, with leaf-like flattened base, two triangular sclerites at apex and a thin, tube-like, bowed sclerite in-between in lateral view ( Fig. 9G ).

FEMALE GENITALIA. Spiculum ventrale with very long and slender apodeme, plate hardly sclerotized. Spermatheca C-shaped with short nodulus and ramus; nodulus twice as long as ramus.

Remarks, variability and differentiation

The new species corresponds to specimens misidentified by authors as Polydrusus bardus . Examination of the holotype of P. bardus revealed that the description by Gyllenhal (in Schoenherr et al. 1834) referred instead to a species commonly known as P. gracilicornis Kiesenwetter, 1864 (or its junior synonyms, see the overview above for details), and therefore has priority over that name.

The reddish-brown to yellowish legs, with hairs but deprived of scales, are characteristic for both P. crinipes sp. nov. and P. rhodiacus . Polydrusus crinipes sp. nov. further differs from P. rhodiacus by the protruding convex eyes ( Fig. 3A–B ) (vs elongate drop-shaped in P. rhodiacus ; Fig. 2E–F ).

Ecology

The new species was collected from May to July, often along rivers (e.g., Nestos River), from sea level to montane altitudes, on various deciduous trees (e.g., Corylus avellana , Populus , Ulmus , Ziziphus ).

Figures

Fig. 3. A–B. Habitus of Polydrusus (Conocetus) crinipes sp. nov. A. Holotype, male from Corfu, Greece. B. Female from Bulgaria. — C–D. Polydrusus angustus (Lucas, 1854). C. Male from Rhodes, Greece.D. FemalefromKalymnos,Greece.— E–F.Polydrususcalabricus(Faust,1890).E.Malefrom Peloponnese, Greece.F. Female from Cephalonia, Greece.

Fig. 7. A–H. Penis of Polydrusus (Denticonocetus) and P. (Conocetus) spp., dorsal and lateral views. A. P. (D.) kahri Kirsch, 1865, Italy, Sicily. B. P. festae (F. Solari, 1925), Greece, Samos. C. P. stierlini (Schilsky, 1910), Greece, Macedonia.D. P. rhodiacus (Schilsky, 1912),Cyprus, Dionios. E. P. crinipes sp. nov., Greece, Corfu. F. P. angustus (Lucas, 1854), Greece, Crete. G. P. calabricus (Faust, 1890), Greece, Peloponnese. H. P. bardus Gyllenhal, 1834, Greece, Crete.

Fig. 11. Map showing records of five species of Polydrusus (Conocetus) and of P. (incertae sedis) longus (Stierlin, 1884) (map copyright: Google).

Fig.9.A–C.InternalsacofPolydrusus(Denticonocetus)kahriKirsch,1865.A.Italy,Sicilia.B.Croatia, Istria. C. Italy, Monte Baldo. D–P. Internal sac, dorsal and lateral views of: D. P. (Conocetus) festae (F. Solari, 1925), Greece, Samos. E. P. stierlini (Schilsky, 1910), Greece, Poligiros. F. P. rhodiacus (Schilsky, 1912), Cyprus, Dionios. G. P. crinipes sp. nov., Greece, Corfu. H. P. angustus (Lucas, 1854), Greece, Crete. I. P. calabricus (Faust, 1890), Greece, Patra. J. Ditto, Italy, Capo Leuca. K. P. bardus Gyllenhal, 1834, Greece, Crete. L. Ditto Iran, Lorestan. M. P. marcidus Kiesenwetter, 1864,Turkey,Antalya.N. P. baudii(Faust, 1889),Cyprus.O. P.transjordanussp. nov.,Jordania,Ajlun. P. P. grandiceps (Desbrochers des Loges, 1875), lectotype, Lebanon.

Fig.2.A–B.HabitusofPolydrusus(Conocetus)grandiceps(DesbrochersdesLoges,1875).A.Lectotype male from Lebanon. B. Female from Syria.— C–D. Polydrusus transjordanussp. nov., paratypes from Jordan. C. Male. D. Female. — E–F. Polydrusus rhodiacus (Schilsky, 1912). E. Male from Nicosia, Cyprus.F. Female lectotype from Cyprus.