Pleotrichophorus knowltoni Corpuz-Raros and Cook 1974

• Main Authors: Stekolshchikov, Andrey V., Khruleva, Olga A.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Aphidomorpha; Aphididae; Pleotrichophorus; Pleotrichophorus knowltoni; Chukotka; Pevek; Alaska
• Online Access: https://doi.org/10.5281/zenodo.6096528; http://treatment.plazi.org/id/03B487ABFFFEFFEC9680885EFB2D63A2

Pleotrichophorus knowltoni Corpuz-Raros and Cook, 1974 (Figs. 66–73, Tabl. 7) Material. 1 fund., No. 10197, ChD, 7 km S Pevek, N 69о 38' N, E 170о 15' E, rubble-loam steep southern slope of the hill with spotty forb-semishrub-dryad vegetation, 21.vi.2011; 3 fund., No. 10198, ChD, 1 km N Pevek, N 69о 42', E 170о 21', petty dry mountain terrace with forb-sedge-dryad spotty vegetation, 1.vii.2011, sweeping; 2 fund., No. 10199, ChD, 20 km NE Pevek, the lower course of the Apapel’gin river, 69о 48' N, 170о 39' E., the burrow of ground squirrel with Artemisia sp., 5.vii.2011, sweeping; 6 fund., 1 apt., No. 10200, ChD, 1 km N Pevek, N 69о 42', E 170о 21', dry hillock with forb-wormwood-herb vegetation, 7.vii.2011, sweeping; 5 fund., No. 10201, ChD, 1 km N Pevek, N 69о 42', E 170о 21', dry mountain terrace with forb-wormwood-moss vegetation, 7.vii.2011, sweeping; 2 fund., No. 10202, ChD, 20 km NE Pevek, the lower course of the Apapel’gin river, 69о 48' N, 170о 39' E., hillock with equisetum-wormwood-forb vegetation, 22.vii.2011, sweeping; 1 ovip. and 1 male, No 10275, Ber, 6.viii.2012, Artemisia tilesii . Comments. This species was described by Corpuz-Raros and Cook (1974) based on 1 apterous viviparous and 6 oviparous females from Alaska (Umiat). Other morphs of this species are not previously known. The following describes the fundatrix and the male collected in Chukotka. In the description the fundatrix is examined in more detail, and for the male, only differences from the fundatrix are specified. Description. Fundatrix. Body elliptical, 1.7–2.2 (1.8–2.0) times as long as its width. Coloration of living specimens unknown. Cleared specimens with dark brown ultimate rostral segment and tarsi, brown 6th antennal segments and apices of 5th antennal segments, and light brown tibiae; all other body parts pale, no sclerites or maculae present on thorax and abdomen. Surface of head smooth or slightly wrinkled, except antennal tubercles, which on inner and ventral side have sparse large pointed spinules or short rows of such ...