Anthrenus (Anthrenus) ardoi, Kadej & Hava, 2011

Kadej, Marcin & Háva, Jirí, 2011, A new species of Anthrenus Geoffroy, 1762 (Coleoptera: Dermestidae) from Oman, with a key to related species, Revue suisse de Zoologie 118 (4), pp. 651-657 : 652-655

Anthrenus (Anthrenus) ardoi sp. n.

Figs 1-9

MATERIAL STUDIED: Holotype (♂): Oman, Ghuzyan rd. Al Khabural-liberi 10.IV.1985 leg. Paul Ardö ( MZLU). Allotype (♀): Oman, Yiti Wadi 7.IV.1985 Paul Ardö ( MZLU) .

Paratypes (16 exx. not sexed): (2 exx.) the same datas as holotype (1 MZLU, 1 JHAC); (8 exx.) the same data as allotype (5 MZLU, 1 MHNG, 1 IZDBTE, 1 JHAC); (5 exx.) Oman, Al Sinain, 10.IV.1985, leg. Paul Ardö (4 MZLU, 1 JHAC); (1 ex.) Oman, Nizwa, 12.IV.1985 leg. Paul Ardö ( MZLU) .

ETYMOLOGY: The epithet is a patronym honoring Dr. Paul Ardö (NHMW), who collected the type series material.

DIAGNOSIS: The new species can be differentiated from some of the species occurring in Oman by the:

1) The total number of antennomeres: in A. ardoi antennae with eleven antennomeres; in A. cervenkai Háva & Herrmann, 2006 and A. coloratus Reitter, 1881 with nine antennomeres; in A. malkini Mroczkowski, 1980 with ten antennomeres.

2) The morphology of eye: in A. ardoi eye with median side broadly and deeply emarginated at about anterior 1/3; in A. cervenkai, A. coloratus and A. jakli eye oval.

Due to variation in the dorsal setal pattern, the new species dorsal appearance resembles some forms of Anthrenus (s. str.) namibicus Háva, 2000 and A. (s. str.) flavipes flavipes LeConte, 1854 and can be easily confused with them. The distinction between these two species can be done based on the following characteristics:

1) In A. ardoi and A. flavipes flavipes tibial spines on first pair of legs absent; in A. namibicus present.

2) In A. ardoi claws of third pair of legs with one small denticle, in A. flavipes flavipes denticle not present; in A. namibicus three denticle present.

3) In A. ardoi apex of paramers slightly curved in to middle, paramers with apex and median lobe slender and narrower, median lobe with distinct extension in 1/2 of its length (Fig. 6); in A. flavipes flavipes and A. namibicus, although male genitalia are similar in general shape to A. ardoi , their parameres are broader; while in A. namibicus Háva, 2000 parameres are distinctly curved toward the middle, setae present only on apex of the parameres, median lobe with distinct extension in 3/5 of its length; in A. flavipes flavipes parameres are curved to ward the middle, setae present on apex and in the inner margin of parameres, median lobe without distinct extension.

4) In A. ardoi 9 th abdominal sternite without distinct waist, with the same width throughout its length, the apex with cordate, deep indentation, sclerotization on the sides and only in the mid section of the upper part - extending to the top and underneath; in A. flavipes flavipes 9 th abdominal sternite spatulate, with the apex narrow and flat, three times wider posteriorly than the apex width, distinct waist in a mid section present, sclerotization on the sides and the mid section only - extending underneath; in A. namibicus 9 th abdominal sternite without distinct waist, with the same width throughout its length, the apex almost flat with slight and shallow indentation, sclerotization on the sides and only in the mid section of the upper part - extending to the top and underneath.

DESCRIPTION

Holotype male. Body: measurements (mm): TL 2.0 PL 0.6 PW 1 .3 EL 1.4 EW 1.7 SL 1.1 SW 1.5. Body convex, rounded, integument brown, finely punctured, covered by broadly oval scales.

Scales: two times as long as width, their surface mostly with 14 complete, linear ribs; the apex of the scale is truncated or rounded and an apical lappet is not present (Figs 8-9).

Head: is characterized by large convex eyes. Eye with median side broadly and deeply emarginated at about anterior 1/3. Median ocellus present on the frons. Antennae with 11 antennomeres, with 3-segmented antennal club (Fig. 5); antennomeres dark-brown. Antenna occupies whole cavity of antennal fossa. Antennal club in both sexes occupies less than half length of the antenna, and is distinctly longer than length of two basal segments combined. Antennal fossa is completely open along lateral margin of the pronotum and occupies 1/3 of the length of lateral margin. Dorsal margin of antennal cavity not visible from above. Dorsal surface covered with white, light- and dark brown scales (Figs 1-2) as follows: pronotum with mixed and irregular light-dark brown and white scales; small white patch near lateral angles enclosing light brown patch.

Elytra: covered with one oval white patch on each side of the suture at its base, with three white, transverse, irregularly interrupted patches: first in basal third, second close the middle, and third in apical fourth or fifth. Dark brown patches are present near humeri, in the central part of disc close to suture, and in basal third near the lateral margin. The remaining areas between bands are covered with light brown scales mixed with single white scales.

Ventral surface: with all scales white except for visible ventrites II-V covered with mix of yellowish (light brown) and white scales; first abdominal ventrite has stria (Figs 3-4).

Legs: brown and covered with white scales on dorsal surface. Tibiae without tibial spines. Tarsus with two slightly curved claws. Claws of the third pair of legs with one small denticle in the half of its length.

Male genitalia: as in figure 6. Parameres are deeply U-shaped, covered with few short setae on the lateral margins as well as in the central and inner areas. Median lobe in lateral view straight, with a distal end of aedeagus pointing up; in the frontal view, wider posteriorly, with narrow apodemes which occupying 1/3 of median lobe length (Fig. 6).

9 th abdominal sternite as in figure 7. Pygidium with sub-basal, transverse, dark, carina-like line.

OBSERVED VARIATIONS: The dorsal patterns vary in color intensity (either darker or lighter). White patches occupies bigger or smaller areas on the pronotum and elytra (Figs 1-2). Body measurements for allotype (female): TL 1.9 PL 0.6 PW 1 .2 EL 1.4 EW 1.5 SL 1.0 SW 1.4; for paratypes varying from (mm): TL 2.7-3.3 PL 0.6-0.7 PW 1.4 - 1.6 EL 2.1-2.4 EW 1.9-2.4.