Aspidophorodon (Aspidophorodon) cornuatus Qiao, sp. nov.
Creators: name: Chen, Jing
name: Zhang, Bin
name: Zhu, Xichao
name: Jiang, Liyun
name: Qiao, Gexia
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Aphidomorpha
Aphididae
Aspidophorodon
Aspidophorodon cornuatus

description: Aspidophorodon (Aspidophorodon) cornuatus Qiao sp. nov.
(Figs 1–19, Table 1)
Specimens examined. Holotype: apterous viviparous female, CHINA: Tibet (Yadong County, 27.52°N, 88.97°E, altitude 2800 m), 15.viii.2010, No. 25908-2-3-1, on Salix cupularis, coll. Y. Wang (NZMC). Paratypes: 5 apterous viviparous females (slides), and 1 apterous viviparous female (COI: KJ374724; Buchnera 16S rRNA: KT 221035), with the same collection data as holotype (NZMC); 2 apterous viviparous females, No. 25908-2-1, with the same collection data as holotype (BMNH).
Etymology. The new species is named for its long horn-shaped antennal tubercles. The Latin word “ cornuatus ” means “horn-shaped”.
Description. Apterous viviparous females: Color of living specimens: yellow. General measurements see Table 1.
Color of mounted specimens: body pale (Fig. 9).
Body. Elliptical.
Head. Dorsum of head covered with many small oval or semicircular sculptures (Figs 1, 10), venter smooth with slight wrinkles. Median frontal tubercle distinctly protuberant, hemispherical (Figs 1, 10), with 1 pair of long pointed setae on venter. Antennal tubercles long horn-shaped, strongly imbricated, each with a short capitate seta at apex (Figs 1, 10). Dorsal setae of head short and capitate. Head with 1 pair of cephalic setae, 1 pair of dorsal setae between antennae, and 2 pairs of dorsal setae between compound eyes arranged transversely (Fig. 1). Antennae 5- segmented, Ant.I–II smooth, with weak wrinkles, Ant.IV–V imbricated; Ant.I with a distinct projection at inner apex (Figs 2, 11). Antennal setae short, capitate or blunt at apices; Ant.I–V each with 4, 3, 3, 1, 1–2+1 setae, respectively; PT with 2–3 apical setae. Primary rhinaria not ciliated, secondary rhinaria absent. Rostrum reaching between fore and mid-coxae, with apex dark brown. URS thin and long wedge-shaped (Figs 3, 12), with 2 pairs of primary setae and 2 pairs of accessory setae.
Thorax. Thoracic nota with irregular polygonal reticulations. Pro-, meso-, and metanotum each with 1 pair of marginal processes, each process with a short capitate seta at apex (Fig. 4); processes on pronotum very small, conical (Figs 4, 13); processes on meso- and metanotum long horn-shaped, strongly imbricated, sometimes also with a short capitate seta near the middle (Figs 4, 14). Thoracic dorsal setae sparse, very short, and capitate. Legs normal, distal part of tibiae with weak spinulose stripes. Setae on hind tibia stiff and pointed. First tarsal chaetotaxy: 3, 3, 3.
Abdomen. Abdominal tergites I–VI with irregular polygonal reticulations (Fig. 15), tergites VII–VIII with irregular scaly sculptures. Abdominal tergites I–IV each with 1 pair of long horn-shaped and strongly imbricated marginal processes, each process with a short capitate seta at apex (Figs 4, 14). Abdominal dorsal setae similar to those on thorax. Abdominal tergite VIII with 4 long, thick, and capitate setae. SIPH long cylindrical, broad at base, thin at middle, slightly swollen at distal, basal half with distinct imbrications, distal part smooth, obliquely truncated at tip, without flange (Figs 5, 16). Cauda, anal plate, and genital plate with spinulose imbrications. Cauda long tongue-shaped, slightly constricted near the middle (Figs 6, 17), with 4–5 setae. Anal plate semicircular, with 11–14 setae (Figs 7, 18). Genital plate broad round, with 2–3 anterior setae and 4–5 setae along the posterior margin (Figs 8, 19).
Distribution. China (Tibet).
Host plant. Salix cupularis.
Biology. Mostly colonized on undersides of leaves of host plant. The life cycle is unknown.
Comments. The new species resembles A. (A.) harvensis Verma, but differs from it as follows: body 1.190– 1.478 mm long (in harvensis: body larger, 1.500–1.850 mm long); marginal processes on thoracic nota and abdominal tergites present (in harvensis: absent); antennal tubercles long horn-shaped (in harvensis: finger-like, obtuse at apices); PT 1.27–1.55 times as long as Ant.Vb (in harvensis: equal to or a little longer than Ant.Vb).
description: Published as part of Chen, Jing, Zhang, Bin, Zhu, Xichao, Jiang, Liyun & Qiao, Gexia, 2015, Review of the aphid genus Aspidophorodon Verma, 1967 with descriptions of three new species from China (Hemiptera: Aphididae: Aphidinae), pp. 551-576 in Zootaxa 4028 (4) on page 558, DOI: 10.11646/zootaxa.4028.4.6, http://zenodo.org/record/241495