Paratinoides apterus Medvedev, 1964

Tshernyshev, Sergei E., 2016, A review of species of the genera Protapalochrus Erichson and Paratinoides L. Medvedev (Coleoptera, Malachiidae), Zootaxa 4139 (3), pp. 369-390 : 387-389

Paratinoides apterus Medvedev, 1964

( Fig. 44–49 )

Paratinoides apterus Medvedev, 1964: 158 . 1 Fig.— Kazakhstan: Karagandinskaya Oblast, near Zhana-Arka village, Koksengir mountain.

Material examined. Type material. Holotypus of Paratinoides apterus Medvedev, 1964 , male, white-yellow printed in Russian geographic label: “Koksengir, S Zhana-Arka Karagand. obl. 25.V.1958, Tobias” ( Kazakhstan, Karagandinskaya oblast’: S of Zhana-Arka vill., Koksengir mountain, N48o18′, E69o15′, 25.V.1958, Tobias) (date in the text of original description is wrongly given as June, in the original label month is May), “sweeping on Graminea grass”, red rectangular card with printed name “ Holotypus ” and handwritten name “ Paratinoides apterus L. Medv. ” and printed words “L.N. Medvedev det.”; paratypes, ibidem, 2 males, 4 females ( ZISP);

New material: Volgogradskaya Oblast’: “Sarepta, 1895, Bekker” (N48o41′, E44o28′)— 1 male ( ZISP).

Description. Male ( Fig. 44 ). Body dark-brown to black, lacking metallic luster, Head, pronotum, elytra, abdomen, intermediate and posterior femora, thorax, 6–11th antennomeres black-brown, mouthpart area, palpi, 1– 5th basal segments of antennae, anterior legs and tibiae and tarsi in intermediate and posterior legs light-yellow, underside of the body black-brown. Thoracic mesepimera black, vesicles yellow.

Head not narrower than distal part of pronotum, flat impressed in a middle, eyes slightly protruding, small, round, frons flat; genae short and straight; clypeus narrow, transverse, straight; labrum narrow, transverse; palpi simple with apical segment dolabriform, triangular and wide, basal segment triangulat, elongate, the same length as apical segment and 3 times longer than the 3rd, the 3rd segment triangular, short and transverse, covered with short and long light-brown hairs; surface of head shining, densely punctured, with distinct microsculpture, densely covered with brown short fine adpressed pubescence and sparsely with long semi-erect hairs, several long erect hairs (~3) are set on the temple behind the eyes. Antennae slightly flattened, 1.1 mm long, reaching the base of pronotum; 1st segment slightly enlarged and 1.3 times longer than 3rd, 2nd segment small, round, almost completely invisible, because strongly hidden by the 1st segment, 1–4th segments triangular, 5–10th segments moniliform, short and transverse, apical segment subcylindrical, evenly narrowed and rounded at the tip; surface evenly covered with sparse and very short adpressed and semi-erect brown hairs visible on outer sides of antennomeres.

Pronotum strongly narrowed from middle to base; anterior margin slightly convex; posterior margin emarginate in middle near scutellum; lateral sides evenly rounded; basal half of lateral sides and basal side very finely marginate; surface in the middle of the disc more sparsely and finely punctured, with distinct microsculpture, shining, sometimes with longitudinal thin carina expanding from base to middle; lateral slopes of the disc densely and roughly punctured and slightly granulate near anterior angles; disc evenly covered with fine curved adpressed and semi-erect short light-brown hairs.

Scutellum small, rectangular with rounded angles, transverse, almost completely covered by pronotum, sparsely punctured and covered with brown short semi-erect pubescence.

Elytra extremely shortened, suboval, subparallel, evenly and slightly widened just behind the base and evenly rounded at apices, cover only thoracic segments and leave five abdominal segments free, margination thin, almost invisible; elytra strongly narrowed at base, humeri indistinct, smoothed; surface shining, sparsely punctured, with distinct microsculpture, looks irregularly creased, evenly covered with light-brown adpressed pubescence and elongate semi-erect hairs.

Hind wings reduced.

Legs simple, not swollen or modified, lacking appendages or hairs; not long, posterior femora reaching elytral apices; all tibiae thin, straight, femora slightly widened and flattened; all tarsi 5-segmented, slightly compressed and elongate, 2nd segment in anterior tarsi with short transverse comb above; claw-segment longest, somewhat longer than 1st and 2nd in anterior legs, equal to 1st and 2nd in posterior and intermediate; claws thin, sharp and short, with small dent at base.

Ventral body surface densely punctured, slightly wrinkled, semi-shining, evenly and sparsely covered with fine, semi-erect light pubescence; metathorax simple, not swollen and lacking appendage or hairs. Pygidium ( Fig. 45 ), elongate, undivided, evenly narrowed and rounded distally, ultimate abdominal ventrite ( Fig. 46 ), narrow, transverse, bilaciniate, with simple evenly rounded apices, aedeagus ( Fig. 47 ), almost completely straight, simple, with a specific strong and spirally curved horn-like tube in endophallus and a group of small denticles in anterior part. Tegmen ( Fig. 48 ), narrow, long, with thin and curved apices of parameres.

Female. Similar to male, except as follows: anterior tarsi lacking comb on the 2nd segment; antennae narrower and shorter; abdomen slightly wider and body size 1–2 mm larger.

Length 3.0– 3.3 mm, width (at base of head) 0.6–0.7 mm.

Distribution. Known from Kazakhstan: Karagandinskaya Oblast, Akmolinskaya Oblast: Zharkol lake (N51o32′, E68o00′), Volgogradskaya Oblast of Russia, Kobdo aimak in Mongolia ( Fig. 49 ).

Habitat. The specimens were collected in steppes on Pedicularius and Euphorbia .

Note. This is first record from Volgogradskaya Oblast’ of Russia.

Figures

FIGURES 44 – 49. Paratinoides apterus Medvedev, 1964, paratypus, male; external appearance (44); pygidium (45); abdominal ventrite (46); aedeagus, dorsal (47); tegmen (48); distribution map (49). Scale bar 1.0 mm.