Dichorrhinus alziari, Germann, 2013

Germann, Christoph, 2013, A review of Dichorrhinus Desbrochers, 1875 (Coleoptera, Curculionidae) with two new species from Greece and Turkey, and from Cyprus, European Journal of Taxonomy 46 (46), pp. 1-13 : 6-7

Dichorrhinus alziari sp. nov.

urn:lsid:zoobank.org:act:79295123-4A02-453E-A620-04F593058D01

Figs 1A, F , 2 G-J, U

Etymology

The new species is dedicated to the expert of the Curculionoidea-fauna of Cyprus , the former curator of the Muséum d’Histoire Naturelle de Nice and dear colleague Gabriel Alziar (Cassagnes-Bégonhès).

Type material

Holotype

♂, “ sommet du Troodos (Limassol, Chypre), +/- 1900 m; 10-V-2008 ” // “sur Juniperus foetidissima G. Alziar leg.”. Red label: “Holotype Dichorrhinus alziari sp. nov. C. Germann des. 2013” ( NMBE).

Paratypes

1 ♀, same data as holotype ( NMBE); 6 ♂♂, 3 ♀♀ same data as holotype (cGA); 7 ♂♂, 4 ♀♀, “circuit de Madhari ( Chypre) 1500-1600 m 10-V-2008: G. Alziar leg.” // “sur Juniperus excelsa ” (cGA); 3 ♂♂, 2 ♀♀; “chemin du Mαδαρι [Potami] 10 V 08 – 1500m CHYPRE J.M. Lemaire leg.” (cJL); 2 ♂♂, 3 ♀♀, “ Cyp. Troodos 1629 m. 24 5 06 S. Doguet ” (cJP). All 31 paratypes are additionally labelled with red paper: “ Paratype Dichorrhinus alziari sp. nov. C. Germann des. 2013”.

Description

SIZE. (Without rostrum) males 4.7 mm (4.3-5.0 mm), females 5.1 mm (4.7-5.5 mm).

COLOUR. Body, head and femora dark brown to black; nasal plate, antennae, tips of femora, partly tibiae and all tarsal segments reddish-brown.

HEAD. Eyes strongly convex, protruding, short oval in section. Rostrum about as long as wide, with well separated, glabrous and reddish-brown nasal plate; glossy from rostral dorsum to the scrobes. From there to epistome punctuate-striate. Head and basal half of rostrum with oval, green-metallic scales and long, partly bowed, dark hairs. Antennae reddish brown, apex of scape and club slightly darker. Antennal scape long, bowed and slender, reaching fore margin of pronotum. Apex of scape thickened, three times wider than base. Seven segments of antennal funiculus as follows (L/W): 1: 3.6, 2: 4.8, 3: 3.2, 4: 2.2, 5: 1.9, 6: 1.6, 7: 1.7. Club fusiform, long and slender.

PRONOTUM. (L/W): 0.9, transverse, widest in the middle, strongly constricted just before fore margin, sides rounded. Densely and irregularly punctuate on disc, vestiture consisting of oval, metallic green scales and long, dark, bowed hairs.

ELYTRA. (L/W) male: 2.0, female: 1.9, parallel-sided. Base much wider than pronotum. Shoulders well pronounced. Striae linear and regularly punctuate, interstriae slightly wider. Vestiture consisting of green-metallic, broad, roundish scales, straight cut at hind margin (nearly triangular), and long, semiraised, dark hairs. Scutellum longer than wide, rounded at tip.

LEGS. Femora not toothed, tibiae straight. Four visible tarsal segments, 1 st segment 1.4 times longer than 2 nd, 3 rd slightly shorter, about twice as wide, 4 th segment tiny and hardly visible, 5 th reaching as far as 1 st. Claws fused at base, simple.

MALE GENITALIA. ( Fig. 2 G-J) Aedeagus slender, parallel sided to concave, apex obtuse angled and pointed. Apodeme as long as aedeagus. Tegmen with short parameres, tegminal apodeme straight, about half as long as apodeme of aedeagus. Ventrite 8 slightly curved, almost as long as aedeagus.

FEMALE GENITALIA. Ventrite 8 with very long and slender apodeme. Spermatheca with pointed, slightly curved nodulus and strongly curved, globular cornu ( Fig. 2U ).

SEXUAL DIMORPHISM. See above.

Host plants

Alziar (2012) reported Juniperus excelsa and J. foetidissima as feeding plants of D. alziari sp. nov.

Figures

Fig. 1. A-E. Habitus. F-J. Head and antennal scape of Dichorrhinus spp., ♂. — A, F. D. alziari sp. nov., holotype. — B, G. D. creticus (Faust, 1889). — C, H. D. geiseri sp. nov., holotype. — D, I. D. korbi Schilsky, 1911. — E, J. D. pseudoscythropus Desbrochers, 1875.

Fig. 2. A-F. Ventral view or aedeagus of Dichorrhinus geiseri sp. nov. A. Holotype. B-C. Denizli, Turkey. D-E. Fethyie, Turkey. F. Ören, Turkey. — G-J. Ditto of D. alziari sp. nov. G-I. Potami, Cyprus. J. Holotype. — K-O. Ditto of D. korbi Schilsky, 1911. K-L. Akseki, Turkey. M. Avlanbeli, Turkey. N. Davras, Turkey. O. Tahtali, Turkey. — P, Q. Ditto of D. creticus (Faust, 1889), Crete, Greece. — R-S. Ditto of D. pseudoscythropus Desbrochers, 1875, Sinfeh, Syria. — T-V. Spermatheca. T. D. geiseri sp. nov. U. D. alziari sp. nov. V. D. korbi, holotype.