Scaphoideus cinerosus Osborn B 1900
Creators: name: Dmitriev, Dmitry
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Scaphoideus
Scaphoideus cinerosus

description: <i>Scaphoideus cinerosus</i> Osborn, 1900 (Fig. 2A) <b>Material.</b> USA, 2 ♁, Illinois, Vermilion Co., 1.7mi S Muncie, 40°05'27" N, 87°50'11" W, 20 VI 2001 (Dietrich). <b>Description.</b> Coloration pale brownish with brown color pattern. Crown pale with dark median longitudinal stripe divided into two parts by pale median line and broken by pale ecdysial line; with small spots laterally in front of eyes. Notum and abdomen with two stripes with ragged inner edges, these stripes fused together on abdominal tergite VII and at posterior margin of tergite VIII; lateral margins of abdominal tergites pale; tergites III–VI with large pale patch medially; setal areolae pale. Pronotum, mesonotum, and abdomen with narrow median stripe divided medially by pale median line. Pygofer with two large black spots laterally. Venter pale; apex of first hind tarsomere darkened. Body length 3.2–3.3 mm; head width 0.9 mm. <b>Notes.</b> Nymphs of <i>Scaphoideus titanus</i> Ball, <i>S. immistus</i> (Say), and <i>S. major</i> Osborn were illustrated by Barnett (1977), and the nymph of <i>S. luteolus</i> Van Duzee was illustrated by Oman (1949). Oman (1943) placed <i>Scaphoideus</i> and several related genera in the tribe Scaphoideini, but never validated this tribe providing a formal description. The group is considered <i>nomen nudum</i> (see Zahniser and Dietrich in press for details). The nymphs of Scaphoideini are very similar to the nymphs of Platymetopiina (Athysanini), another poorly defined group recognized by some researchers (see Emeljanov 1999; Dmitriev 2006), but usually treated as a synonym of Athysanini (Zahniser and Dietrich in press). Th ey have similar body proportions, chaetotaxy, and color pattern. The only difference found so far is longer macrochaetae in the posterodorsal row of the hind tibia; these are usually much longer than macrochaetae in the anterodorsal row. Further investigation is needed to evaluate the status of Scaphoideini. <b>Tribe Cochlorhinini Oman, 1949</b> <b>Description.</b> Body slender. Head long; crown 2–3 times as long as pronotum, longer than wide, apex narrowly rounded, posterior margin slightly concave. Crown-face transition carinate; acrometope distinct. Face as long as wide or longer; anteclypeus parallel sided, 1.5–1.7 times as long as wide; lorum about as wide as anteclypeus, 1/2 of its inner margin bordered by postclypeus; postclypeus elongated, sometimes with faint median longitudinal carina in dorsal half. Gena with single hair like seta, its lateral margin slightly S-curved or straight. Antenna short, slightly extended beyond anteclypeus apex. Pronotum 3–3.5 times as wide as long, with lateral carina. Forewing pads 1.5 times as long as pterothorax medially. Fore tibia with 4 longitudinal rows of macrochaetae: anteroventral row with numerous setae, increasing in size towards apex of tibia; anterodorsal, posterodorsal, and posteroventral rows with 4–5 macrochaetae each. Middle tibia with 4–5 macrochaetae in dorsal rows and 5–6 macrochaetae in ventral rows. Setal formula of hind femur 2+2+1. Hind tibia with 7–9 macrochaetae in dorsal rows, and 1– 3 intercalary setae among them, with pecten of setae at apex (setae II–IV are platellae, other setae regular). First hind tarsomere with platellae in anteroventral row and in distal pecten; one platella on the border between second and third tarsomere. Entire body covered with short setae. Pygofer 1.5–2 times as long as preceding tergites. Male gonapophyses triangular, about as long as wide, with narrowly rounded apices. Coloration yellowish, usually with two longitudinal stripes.
description: Published as part of <i>Dmitriev, Dmitry, 2009, Nymphs of some Nearctic leafhoppers (Homoptera, Cicadellidae) with description of a new tribe, pp. 13-33 in ZooKeys 29 (29)</i> on pages 19-20, DOI: 10.3897/zookeys.29.223, http://zenodo.org/record/576572
description: {"references": ["Osborn H (1900) The genus Scaphoideus. Journal of the Cincinnati Society of Natural History 19: 187 - 209.", "Barnett DE (1977) A revision of the Nearctic species of the genus Scaphoideus (Homoptera: Cicadellidae). Transactions of the American Entomological Society 102: 485 - 593.", "Oman PW (1949) Th e Nearctic leafhoppers (Homoptera: Cicadellidae). A generic classification and check list. Memoirs of the Entomological Society of Washington 3: 1 - 253.", "Oman PW (1943) A generic revision of the Nearctic Cicadellidae (Homoptera). George Washington University bulletin 1941 - 1943: 15 - 17.", "Emeljanov AF (1999) A key to genera of the subfamily Deltocephalinae s. l. (Homoptera, Cicadellidae) from Kazakhstan, Middle Asia, and Mongolia with description of new genera and subgenera. Entomologicheskoe Obozrenie 78 (3): 589 - 609. [In Russian; translated into English in Entomological Review 1999 79 (5): 547 - 562].", "Dmitriev DA (2006) Larvae of leafhoppers of the subfamily Deltocephalinae (Homoptera, Cicadellidae) of European Russia and adjacent territories. IV. Th e tribe Athysanini. Entomologicheskoe Obozrenie 85 (1): 75 - 121. [In Russian; translated into English in Entomological Review 2006 86 (1): 11 - 48]."]}