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Heteroptera: Miridae: Orthotylinae) from Central Asia

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Heteroptera: Miridae: Orthotylinae) from Central Asia Eur. J. Entomol. 109: 117–128, 2012 http://www.eje.cz/scripts/viewabstract.php?abstract=1687 ISSN 1210-5759 (print), 1802-8829 (online) A new genus and species of the tribe Orthotylini (Heteroptera: Miridae: Orthotylinae) from Central Asia ALEXANDER A. KNYSHOV and FEDOR V. KONSTANTINOV St. Petersburg State University, Department of Entomology, Universitetskaya nab. 7/9, 199034 St. Petersburg, Russia; e-mails: [email protected]; [email protected] Key words. Heteroptera, Miridae, Orthotylinae, taxonomy, new genus, new species, Angulonotus grisescens, Uzbekistan, Kazakhstan, Hyoidea Abstract. A new genus and new species, Angulonotus grisescens, is described from Kazakhstan and Uzbekistan and its taxonomic placement within the tribe Orthotylini is discussed. Illustrations of male and female genitalia, micrographs of selected characters, photographs of dorsal habitus, hosts and distributional records of this new taxon are provided. Comparisons are made with species of the genus Hyoidea Reuter, 1876. INTRODUCTION ber, Heterotoma Lepeletier & Serville, Mecomma Fieber This paper is part of a series of ongoing efforts to and Mecommopsis Kerzhner are distinguished by the improve our knowledge of the poorly known Central more or less expressed ant-mimetic habitus, including a Asian fauna for the plant bug family Miridae. Examina- shiny dorsal surface and dark coloration with some light tion of the extensive material in the collection of the Zoo- maculae. In the genus Aetorhinella Noualhier the eyes are logical Institute, Russian Academy of Sciences, revealed located at a distance from the anterior margin of the pro- one new species from Kazakhstan and Uzbekistan. The notum. The genera Brachynotocoris Reuter, Reuteria new taxon described in this paper belongs to the nomino- Puton, and Ulmica Kerzhner differ from the new genus in typical tribe of the subfamily Orthotylinae and cannot be having a short pronotal disc that covers only half of the assigned to any known orthotyline genus. mesoscutum. The genera, Heterocordylus Fieber and The Orthotylinae is the third most species-rich sub- Excentricus Reuter, can be easily distinguished by the family of Miridae and currently contains three recognized peculiar shape of their antennae. tribes (Schuh, 1976, 1995; Schuh & Slater, 1995) al- Careful examination of the remaining Palaearctic though additional tribes, e.g., Austromirini (Carvalho, genera in the Orthotylus group, namely Blepharidopterus 1976), are sometimes considered as well. Classification of Kolenati, Canariocoris Lindberg, Fieberocapsus Car- the largest nominate tribe is rather unsatisfactory. The valho & Southwood, Pseudoloxops Kirkaldy, Hyoidea unusually high variability in external morphology and the Reuter, Hyoidellus Wagner, Hypsitylus Fieber, Parahyp- structures of the external genitalia raises doubts about the sitylus Wagner, Platycranus Fieber and Orthotylus monophyly of the tribe (e.g., Yasunaga, 1999). The most Fieber, indicates that Hyoidea is the most similar and distinctive and reliable feature of Orthotylini sensu lato is apparently a sister taxon of the new genus described in the presence of interramal lobes projecting dorsally from this paper. This conclusion is corroborated by the pres- the posterior wall of the female genitalia (Slater, 1950; ence of a thin pronotal collar and carinate anterolateral Davis, 1955). angles of the pronotum not observed in other Palaearctic Schuh (1974) recognized four informal supra-generic genera in the Orthotylus group and several other charac- assemblages within the Orthotylini: the Falconia, Ortho- ters: body proportions, coloration and structures of male tylus, Sericophanes and Zanchius groups. The Orthotylus external genitalia (see diagnosis). group is by far the largest and can be recognized by the Hyoidea was described from the Astrakhan Province of usually well-developed and sclerotized spicules in the Russia by Reuter (1876) based on a single species, H. vesica (Schuh, 1974). Almost all other characters are very notaticeps. Its current distributional range spans the variable and the group is presumably not monophyletic. steppe and semidesert zones of the Palaearctic extending Nonetheless, the new genus Angulonotus, described in the from Hungary and Slovakia in the west, through the present paper, undoubtedly belongs to the Orthotylus Ukraine, Caucasus, southern European Russia and Cen- group in its present concept. tral Asia to Northern China in the east. The second spe- Most Palaearctic representatives of the group differ cies in the genus, H. horvathi, was described by markedly from the new genus. In particular, the genera Montandon (1980) from Algeria. Later Hoberlandt (1963) Campylotropis Reuter, Cyllecoris Hahn, Dryophilocoris revised the genus and described two species, H. lindbergi, Reuter, Globiceps Lepeletier & Serville, Ulmocyllus currently known from Morocco and Tunisia, and H. Seidenstücker, Cyllecoridea Kerzhner, Cyrtorhinus Fie- kerzhneri, which has similar distributional range to H. 117 TABLE 1. Measurements of species of Angulonotus and Hyoidea. Total Length Length Width Width Cun-Clyp AntSeg1 AntSeg2 InterOcDi Length Head Pronot Head Prono Angulonotus grisescens Mean 4.55 3.73 0.41 0.44 0.71 1.06 0.32 1.16 0.30 SD 0.17 0.09 0.02 0.02 0.02 0.03 0.02 0.03 0.01 Males Range 0.43 0.25 0.05 0.05 0.06 0.10 0.05 0.10 0.03 N = 7 Minimum 4.38 3.63 0.38 0.43 0.69 1.00 0.30 1.10 0.29 Maximum 4.80 3.88 0.43 0.48 0.75 1.10 0.35 1.20 0.31 Mean 3.66 3.08 0.39 0.38 0.66 0.96 0.32 1.14 0.35 SD 0.24 0.23 0.02 0.02 0.03 0.04 0.01 0.04 0.01 Females Range 0.50 0.50 0.05 0.05 0.06 0.10 0.03 0.10 0.03 N = 5 Minimum 3.50 2.88 0.38 0.35 0.63 0.93 0.30 1.08 0.33 Maximum 4.00 3.38 0.43 0.40 0.69 1.03 0.33 1.18 0.35 Hyoidea kerzhneri Mean 5.74 4.56 0.54 0.79 1.04 1.38 0.43 1.57 0.56 SD 0.58 0.11 0.03 0.04 0.03 0.04 0.03 0.09 0.02 Males Range 1.50 0.25 0.08 0.10 0.08 0.10 0.08 0.23 0.04 N = 5 Minimum 5.25 4.50 0.50 0.73 1.00 1.33 0.38 1.45 0.54 Maximum 6.75 4.75 0.58 0.83 1.08 1.43 0.45 1.68 0.58 Mean 4.72 3.98 0.58 0.76 1.12 1.34 0.39 1.26 0.68 SD 0.29 0.34 0.06 0.04 0.03 0.03 0.05 0.12 0.02 Females Range 0.68 0.75 0.15 0.10 0.08 0.09 0.13 0.33 0.05 N = 5 Minimum 4.33 3.50 0.50 0.70 1.08 1.29 0.30 1.05 0.65 Maximum 5.00 4.25 0.65 0.80 1.15 1.38 0.43 1.38 0.70 Hyoidea lindbergi Mean 4.88 4.19 0.53 0.81 1.04 1.33 0.43 1.64 0.54 SD 0.18 0.11 0.02 0.03 0.02 0.04 0.01 0.07 0.04 Males Range 0.48 0.25 0.05 0.08 0.05 0.08 0.01 0.18 0.09 N = 5 Minimum 4.63 4.00 0.50 0.78 1.03 1.30 0.43 1.58 0.49 Maximum 5.10 4.25 0.55 0.85 1.08 1.38 0.44 1.75 0.58 Mean 5.08 4.35 0.65 0.85 1.19 1.48 0.49 1.52 0.72 SD 0.50 0.35 0.03 0.05 0.08 0.04 0.10 0.04 0.04 Females Range 1.25 0.88 0.08 0.13 0.20 0.10 0.25 0.10 0.10 N = 5 Minimum 4.25 3.75 0.63 0.75 1.05 1.43 0.43 1.45 0.65 Maximum 5.50 4.63 0.70 0.88 1.25 1.53 0.68 1.55 0.75 Hyoidea notaticeps Mean 4.58 3.85 0.50 0.73 1.02 1.23 0.36 1.19 0.58 SD 0.24 0.14 0.02 0.02 0.03 0.02 0.03 0.09 0.02 Males Range 0.63 0.38 0.05 0.05 0.08 0.05 0.05 0.23 0.05 N = 5 Minimum 4.25 3.63 0.48 0.70 0.98 1.20 0.33 1.05 0.55 Maximum 4.88 4.00 0.53 0.75 1.05 1.25 0.38 1.28 0.60 Mean 4.81 4.03 0.60 0.75 1.15 1.34 0.34 1.12 0.72 SD 0.07 0.16 0.05 0.02 0.04 0.05 0.02 0.06 0.02 Females Range 0.13 0.38 0.10 0.04 0.08 0.13 0.05 0.14 0.05 N = 4 Minimum 4.75 3.88 0.53 0.73 1.13 1.28 0.33 1.04 0.70 Maximum 4.88 4.25 0.63 0.76 1.20 1.40 0.38 1.18 0.75 nitaticeps, from Eastern Europe to Central Asia and MATERIAL AND METHODS China. Five more species were described within the next All specimens examined in the course of this study, including forty years, viz., H. hermione Linnavuori, H. hannothi- types, are located at the Zoological Institute, St. Petersburg, auxi Carapezza, H.
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