Peliococcus agriensis Kaydan

Kaydan, Mehmet Bora, 2015, A systematic study of Peliococcus Borchsenius (Hemiptera: Coccoidea: Pseudococcidae), with descriptions of a new Palaearctic genus and four new species from Turkey, Zootaxa 3920 (2), pp. 201-248 : 214-216

Peliococcus agriensis Kaydan , sp. nov.

( Fig. 4 ).

Peliococcus agriensis ; Danzig & Gavrilov-Zimin 2014: 406. Unavailable name.

Material studied. Holotype: adult female: Turkey, Ağri, Mount Ağri, N: 39°36’520’’, E: 044°12’498’’, 1635 m, on Artemisia vulgaris (Asteraceae) , 07.vi.2006, coll: M. Bora Kaydan ( KPCT: 2811). Paratype: 1 adult female on a separate slide, with same data as holotype.

Description. Adult female. Body elongate oval, 1.51–1.76 mm long, 0.75–0.98 mm wide. Eye marginal, 35–38 µm wide. Antenna 9 segmented, 385–410 µm long; apical segment 50–60 µm long, 22–25 µm wide; apical setae 30–35 µm long, plus 3 fleshy setae each 25–30 µm long. Tentorium 140–145 µm long, 125–140 µm wide. Labium 125 µm long, 95 µm wide. Anterior spiracles 40–55 µm long, 25–30 µm wide across atrium; posterior spiracles 65–70 µm long, 37–45 µm wide across atrium. Circulus large, oval, 110–145 µm wide. Legs well developed; posterior legs: coxa 137–148 µm long; trochanter + femur 200–220 µm long; tibia + tarsus 235–260 µm long; claw 22–25 µm long. Ratio of length of hind tibia + tarsus to length of hind trochanter + femur 1.18–1.75:1; ratio of length of hind tibia to length of tarsus 2.06–2.18:1; ratio of length of hind trochanter + femur to greatest width of femur 2.93–3.07:1. Tarsal digitules each ca 20–23 µm long, hair-like. Claw digitules knobbed, each 20–23 µm long. Anterior ostioles with a total for both lips of 10–12 trilocular pores and 2 or 3 setae; posterior ostioles with a total for both lips of 18–26 trilocular pores and 4 or 5 setae. Anal ring 65–70 µm wide, with 6 setae, each seta 95–110 µm long. Cerarii, each on an elevated area ( Fig. 9 a, b), numbering 17 pairs; anal lobe cerarii, each with 2 slender enlarged setae, 20–25 µm long, 13–18 trilocular pores and 3 or 4 spine-like auxiliary setae; marginal cerarii each with 2 slender enlarged setae plus 1 or (rarely) 2 trilocular pores.

Dorsum. Setae spine-like, of 2 sizes; (i) enlarged setae, each 5–15 µm long on an elevated area, similar to cerarian setae, each seta with a trilocular pore near basal socket; and (ii) smaller setae, each 5.0–7.5 µm long, not on an elevated area, scattered on dorsum. Multilocular disc pores, each 7.5–9.0 µm in diameter, in clusters of 1–6 pores, most clusters on abdomen with 3–6 disc pores but those on thorax and head with only 1–3; each cluster with a large tubular duct, each 10–11 µm long, 7.5–9.0 µm wide; with a total of 45–54 clusters on head and thorax; in addition on abdominal segments, as follows: segment I 13–15, II 12–14, III 13, IV 12–14, V 13– 15, VI 9 or 10, VII 8, VIII+ IX 2. Trilocular pores each 3–4 µm in diameter, scattered throughout and also present at base of each enlarged setae. Minute discoidal pores, each 2 µm in diameter, few, scattered.

Venter. Setae of 2 types: (i) slender hair-like setae, each 15–95 µm long, longest setae medially on head; and (ii) spine-like setae, each 5–13 µm long, present in rows submarginally. Apical setae of anal lobe 165–170 µm long. Multilocular disc pores each 7.5–9.0 µm in diameter; present in clusters submarginally on head, thorax and abdominal segments, each cluster with 1–3 multilocular disc pores plus a large tubular duct in centre, and also in rows across posterior abdominal segments as follows: IV 14–16, V 31–35, VI 91 –94, VII 72 –76, VIII + IX 35 –39. Quinquelocular pores, each 5–6 µm in diameter, scattered medially on head, thorax and first five abdominal segments. Trilocular pores, each 2.5–3.0 µm in diameter, only in submarginal and marginal areas of body. Minute discoidal pores few, each 2 µm in diameter. Oral collar tubular ducts of 2 sizes: large ducts as on dorsum, with 1 present in each cluster; and smaller ducts, each 7.5–9.0 µm long, 2.5–4.0 µm wide, restricted to body margins and in single rows on abdominal segments as follows: IV 8–12, V 40 –48, VI 48 – 50, VII 22–24, VIII + IX 10–23.

Comments. Peliococcus agriensis Kaydan can be distinguished from other species in the genus in having: (i) only 1 size of oral collar tubular duct in each cluster and each cluster with 1–6 (usually 3) multilocular disc pores, and (ii) quinquelocular pores present medially on the venter. P. agriensis is most similar to P. calluneti in having 1 size of oral collar tubular duct on dorsum, but P. agriensis differs from P. calluneti in having (data for P. calluneti in brackets): (i) 9 segmented antennae (7 or 8 segmented antennae), and (ii) no clusters medially on venter of head (clusters present on venter of head).

Danzig & Gavrilov-Zimin (2014) used the name " Peliococcus agriensis " before it was made available in the present work. According to Article 16 (specifically 16.1 and 16.4) of the ICZN (1999), this name must be considered unavailable from their work. Here the name is published in a way that meets the criteria of availability as specified by the ICZN (1999). Danzig & Gavrilov-Zimin (2014) also used Fig. 4 as their figure 2.1.3-6.

Etymology. This species is named from the collection locality, Mount Ağrı.

Host plants. Collected from the roots of Artemisia vulgaris (Asteraceae) .

Distribution. Turkey (Ağrı).

Figures

FIGURE 4. Peliococcus agriensis Kaydan, sp. nov., holotype; (a, b) cerarii on elevated areas. Note: nine-segmented antennae; quinquelocular pores present medially on venter; each cluster with 1 – 6 multilocular disc-pores and a single large oral collar tubular duct; and 2 pore clusters on dorsum of abdominal segment VII + IX.

FIGURE 9. Peliococcus spinigerus Goux, paratype. Note: 15 pairs of marginal cerarii; multilocular disc pores absent on dorsum; dorsal setae, similar to cerarian setae, forming several longitudinal rows on thorax and abdomen; antennae 8 segmented.