Periphyllus singeri (Börner), Borner

Wieczorek, Karina & Junkiert, Łukasz, 2011, Description of sexuales of Periphyllus singeri (Börner) (Hemiptera, Aphidoidea: Chaitophorinae), Zootaxa 2872, pp. 63-68 : 63-67

publication ID	https://doi.org/ 10.5281/zenodo.208045
DOI	https://doi.org/10.5281/zenodo.6191545
persistent identifier	https://treatment.plazi.org/id/03E28C19-FFBB-FF99-3ABB-28121F52FEA7
treatment provided by	Plazi
scientific name	Periphyllus singeri (Börner)
status

Treatment

Periphyllus singeri (Börner)

( Figs 1 View FIGURE 1. P , 2 View FIGURE 2. P. s i n g e r i )

Chaetophoria singeri Börner, 1952: 322 View in CoL

Chaetophorella helferi Quednau, 1954: 308 View in CoL –309 Description. Oviparous female ( Fig. 1 View FIGURE 1. P a; Table 1). Color of live specimens unknown; mounted specimens yellowish with antennal segments and dorsal sclerites dusky. Body oval, slightly elongate 3.17–3.7 mm long and 0.8–1.05 mm wide. Abdomen with small, oval marginal sclerites, pleural and spinal sclerites partially fused. Dorsal chaetotaxy: setae not arranged in visible rows, pale, pointed, 0.3–0.4 mm long. Head chaetotaxy: pointed hairs 0.175– 0.25 mm long on frontal margin of head, shorter ones 0.075–0.1 arranged into circular row. Antennae ( Fig. 1 View FIGURE 1. P b) 6- segmented, long, reaching to abdominal segm. III, 0.65–0.72 times body length. Terminal process (VIb) 3.78–5.2 times base (VIa); other antennal ratios: VIb:III 0.68–0.71, VI:III 0.81–0.89, V:III 0.43–0.46, IV:III 0.44–0.52. Antennal chaetotaxy: segm. I with 6–7 hairs, segm. II with 4–6 hairs, segm. III with 30–33 hairs, segm. IV with 12–15 hairs, segm V with 9–10 hairs. Antennal hairs 0.075–0.175 mm long; the longest antennal hair III 3.5–4.0 times basal articular diameter of this segment. Longer hair on segm. VIa about 0.1 mm long, shorter hair on segm. VIa about 0.075 mm long, as long as or shorter than basal articular diameter of VIb, reaching primary rhinarium of VIa. Rostrum reaching hind coxae, apical segment of rostrum (ARS) blunt about 0.17–0.2 mm long, with 10–15 secondary hairs ( Fig. 1 View FIGURE 1. P c), 0.22–0.26 times antennal segment III and 0.77–0.86 times segment II of hind tarsus (HT II). Hind tibiae ( Fig. 1 View FIGURE 1. P d) without rows of short spinules, with 42–73 circular pseudosensoria; first tarsal chaetotaxy 5:5:5, empodial hairs spatulate ( Fig. 1 View FIGURE 1. P e). Siphunculi pale, 0.1–0.125 mm long, with 2–3 rows of reticulation in apical part ( Fig. 1 View FIGURE 1. P f). Cauda broadly rounded, about 0.25 mm wide, with 9–11 pointed hairs 0.1–0.175 mm long ( Fig. 1 View FIGURE 1. P g).

Measurements in mm of one oviparous female (OEH, 8268-5). Body: 3.40, ant.: 2.35, ant. segm. (III–VI): 0.75:0.37:0.35:(0.14+0.53), ARS: 0.2, HT II: 0.23.

No. Body Antenna antennal segments ARS HT II

III IV V VIa+VIb

1 3.17 2.09 0.67 0.30 0.30 0.12+0.48 0.17 0.22 2 3.35 2.42 0.76 0.40 0.33 0.10–0.52 0.17 0.23 3 3.40 2.35 0.75 0.37 0.35 0.14–0.53 0.20 0.22 4 3.70 2.45 0.77 0.38 0.34 0.12–0.54 0.19 0.22 Description. Alate male. Color of live specimens unknown; mounted specimens yellowish with dorsal sclerites and genitalia dusky. Body elongate 2.58–2.85 mm long and 1.0– 1.12 mm wide. Abdominal tergites with marginal and spino-pleural sclerites, among them small, intersegmental plates ( Fig. 2 View FIGURE 2. P. s i n g e r i a). Dorsal chaetotaxy: setae not arranged in visible rows, pale, less numerous and shorter than in oviparous female, pointed, 0.075–0.1 mm long, the longest ones about 0.2 mm long on abdominal segments V–VIII. Head chaetotaxy ( Fig. 2 View FIGURE 2. P. s i n g e r i b): few pointed 0.15– 0.22 mm long hairs. Antennae ( Fig. 2 View FIGURE 2. P. s i n g e r i c) long, reaching to abdominal segment VI, 0.87–1.05 times body length. VIb 5.28–5.7 times VIa; other antennal ratios: VIb:III 0.87–1.0, VI:III 1.03–1.26, V:III 0.46–0.48, IV:III 0.61–0.64. Antennal chaetotaxy: segm. I with 4–5 hairs, segm. II with 4 hairs, segm. III with 29–34 hairs, segm. IV with 11– 13 hairs, segm. V with 9–13 hairs. Antennal hairs 0.06–0.125 mm long; the longest antennal hair III 4.5–5.0 times basal articular diameter of this segment. Longer hair on segm. VIa about 0.1 mm long, shorter hair on segm. VIa about 0.05 mm long, about 2.0 times basal articular diameter of VIb. Segment III with 59–62, segm. IV with 32– 40, segm. V with 20–21 circular rhinaria. Rostrum short, reaching to second coxae, ARS short and blunt, 0.18–0.19 mm long, with 10–15 secondary hairs ( Fig. 2 View FIGURE 2. P. s i n g e r i d), 0.27–0.30 times antennal segment III and 0.90–1.05 times HT II. Distal parts of hind tibiae with weak visible rows of short spinules; first tarsal chaetotaxy 5:5:5, empodial hairs spatulate ( Fig. 2 View FIGURE 2. P. s i n g e r i e). Fore wings typical, with normal venation, media with 3 branches, pterostigma pale. Siphunculi pale, 0.055–0.06 mm long, uniformly reticulate ( Fig. 2 View FIGURE 2. P. s i n g e r i f). Cauda broadly rounded, about 0.175 mm wide, with about 6–7 pointed hairs 0.06–0.125 mm long ( Fig. 2 View FIGURE 2. P. s i n g e r i g). Genitalia well developed, strongly sclerotized.

Measurements in mm of one alate male (OEH, 8270-10) Body: 2.58, ant.: 2.27, ant. segm. (III–VI): 0.65:0.42:0.3:(0.1+0.57), ARS: 0.18, HT II: 0.2.

Material examined. DENMARK, Emdrup NEZ, 29.x.1993, Acer pseudoplatanus , 4 oviparous females (OEH, 8268-5, 8268-7, 8269-5), 2 males (OEH, 8270-10, 8270-12), in ZMK.

Distribution. Austria, Haller Mauern, Sattleralm ( Börner & Franz, 1956: 311); Denmark, Copenhagen, NEZ ( Heie, 1995: 171); Germany, Berlin-Grunewald ( Quednau, 1954: 308); Lithuania, Curonian Spit-Juodkrante ( Rakauskas et al., 2008: 101); The Netherlands ( Blackman & Eastop, 1994: 819); Ukraine, Radjanski Karpaty- Javirnik Mt., Grabovec ( Mamontova-Solukha, 1966: 4).

Biology. This species lives on A. pseudoplatanus , on branches and old wounds on the bark of large tree-trunks, usually in large colonies attended by Lasius fuliginosus (Latreille) ( Heie, 1982) . The sexuales were observed from October to November ( Heie, 1995).