Orthocephalus arnoldii (Putshkov) Namyatova & Konstantinov, 2009

Namyatova, Anna A. & Konstantinov, Fedor V., 2009, Revision of the genus Orthocephalus Fieber, 1858 (Hemiptera: Heteroptera: Miridae: Orthotylinae) 2316, Zootaxa 2316, pp. 1-118 : 12-13

Orthocephalus arnoldii (Putshkov) , comb. nov.

Figures 1, 5, 7, 10, 14, 18, 20 A, H, 23 D, 24 C

Anapomella arnoldii V. Putshkov, 1961: 26–28 .

DIAGNOSIS: Most readily recognized by the presence of scalelike silver setae on legs, the swollen hind femora more than twice as wide as middle femora, the long labium, almost reaching genital segment; the aedeagus without any armament (fig. 7) and the dorsal labiate plate of bursa copulatrix with medial sclerites sickleshaped, longer than rings (fig. 14). Could be confused in appearance with O. tibialis , but differing from that species in the wider vertex in both sexes. These two species are also similar in the structure of the aedeagus, but can be easily distinguished by the shape of both parameres (compare figs. 10 and 13). Female genitalia of O. tibialis differing from those of O. arnoldii in the structure of the dorsal labiate plate, specifically the beanshaped sclerotized rings and reduced medial sclerites (figs. 14 and 17).

REDESCRIPTION: Male: Macropterous; length 2.6-2.9. COLORATION (figs. 1): Body dark brown to black; antennal segment II, sometimes also segments III and IV, all tibiae and tarsal segment I paler than dorsum, pale brown to dirty brown; membrane uniformly pale brown. SURFACE AND VESTITURE: Head and hemelytra smooth and dull, pronotum and scutellum somewhat rugose. Dorsum, pleurites, legs, and abdomen clothed with dense scalelike setae (as in figs. 22 A-C, E, 23 A, D); in addition body with comparatively long, semierect, bristlelike dark simple setae distributed on antennal segments II-IV, entire dorsum, anterior margins of femora, and abdomen; most of these setae shorter than eye diameter, except that on head and anterolateral margins of pronotum setae somewhat longer than eye; antennal segment I with two mesial spines. STRUC- TURE AND MEASUREMENTS: Body 2.5–2.7× as long as width of pronotum. Head: Broad, 1.4–1.5× as wide as high; frons convex; mandibular plates short and broad from anterior view; depression along hind margin of vertex barely visible (fig. 20 A); eye relatively small, located at a short distance from anterior pronotal margin, barely protruding; vertex 2.9–3.7× as wide as eye; antennal fossa located at a distance from inferior margin of eye (fig. 20 A); antennal segment I shorter than diameter of eye; antennal segment II thin; almost not incrassate, cylindrical, 0.6–0.8× as long as basal width of pronotum, 0.7–0.8× as long as width of head, labium long, almost reaching genital segment. Thorax: Pronotum 1.9–2.2× as wide as long and 1.0–1.2× as wide as head, with posterior margin straight and not carinate lateral margins; calli slightly raised; hind femora swollen, more than twice as wide as middle femora. GENITALIA: Aedeagus without spicules (Fig 7); right paramere as in fig. 10, apical process of left paramere gradually tapering, strongly curved apically (fig. 10).

Female: Brachypterous; total size 2.4. COLORATION (fig. 1): As in male. VESTITURE: As in male. STRUCTURE AND MEASUREMENTS: Body 2.2× as long as width of pronotum. Head: 1.4× as wide as high; depression along hind margin of vertex more distinct than in male; vertex 2.9–3.5× as wide as eye; antennal segment II 0.5–0.7× as long as basal width of pronotum, 0.6–0.7× as long as width of head. Thorax: Pronotum 2.0–2.1× as wide as long and 1.0× as wide as head with posterior margin straight or slightly concave; hemelytra reaching abdominal tergum VII; clavus distinct, claval commissure ranging in length from very short to somewhat shorter than inner margin of clavus; cuneus not delimited, posterior margin of hemelytra slightly rounded. GENITALIA: Sclerotized rings of dorsal labiate plate almost triangular, medial sclerites rather long and thin, sickle shaped (fig. 14); posterior wall of bursa copulatrix with trapeziform uniformly sclerotized sclerite, incision on the anterior margin narrow, not reaching middle of sclerite; anterior angles of this sclerite somewhat dentate, posterior margin without sclerites (fig. 18); vulva with two straight sclerites at sides (as in fig. 19, styx ).

DISTRIBUTION: Species inhabits steppe areas. Collected from Ukraine, Voronezh, and Orenburg Provinces of Russia. Records from Kazakhstan are erroneous.

HOSTS: Putshkov (1961) reported the species from Helichrysum arenarium (L.) ( Asteraceae ). It was also collected by Golub from Artemisia sp. (Asteraceae)

DISCUSSION: The monotypic genus Anapomella was described by Putshkov (1961) to accommodate A. arnoldii . See generic discussion on the synonymy of Anapomella with Orthocephalus .

SPECIMENS EXAMINED: Paratypes: RUSSIAN FEDERATION: Orenburg Prov.: Koteg, Obshchiy Syrt Mts. Ridge [Kazakhstan], 52.5 ° N 53 ° E, 26 Jun 1949, L.V. Arnoldi, 1♀ ( AMNH _ PBI 00253394 ) ( ZISP) . Voronezh Prov.: Ramon' , 51.91666 ° N 39.31666 ° E, 23 Jun 1958, Putshkov, 1♀ ( AMNH _ PBI 00249713 ) ( ZISP) . UKRAINE: Mleyev, Cherkeskiy Distr. , 49.35 ° N 31.51666 ° E, 31 May 1924, Grossgeym, 1♂ ( AMNH _ PBI 00249712 ) ( ZISP) .

ADDITIONAL MATERIAL: RUSSIAN FEDERATION: Voronezh Prov.: Ramon', 51.91666 ° N 39.31666 ° E, 16 Jun 1975, Golub, Artemisia sp. (Asteraceae) , 1♀ (AMNH_PBI 00307730) (ZISP); 01 Jun 1990, Golub, 1♀ (AMNH_PBI 00307731) (ZISP). UKRAINE: Goloseevo, Kievskaya Prov., 50.37 ° N 30.5 ° E, 24 May 1967, Putshkov, 3♂ (AMNH_PBI 00222947, AMNH_PBI 00249710, AMNH_PBI 00251468) (ZISP).