Heterobrevennia opertus (Borchsenius) Borchsenius, 2011

Kaydan, Bora, 2011, Revision of Heterococcopsis Borchsenius (Hemiptera: Coccoidea: Pseudococcidae), with description of a new genus with two new species from Turkey, Zootaxa 2970, pp. 49-62 : 58-60

Heterobrevennia opertus (Borchsenius) comb.nov.

Material examined: Syntypic adult females: Tadzikistan, Gissarskii Ridge, Dactylis glomerata (Poaceae) , H. Borchsenius, 17.vii.1944 (2 specimens, ZIAS: 34-45).

Adult female ( Fig. 4 )

Live appearance: Body elongate oval.

Mounted material. Body elongate oval, 2.82–3.60 mm long, 1.56–2.20 mm wide. Eye marginal, 32.5–35.0 µm wide. Antenna 9 segmented, 270–290 µm long; apical segment 45–55 µm long, 20–25 µm wide, with apical setae 30–35 µm long, plus 3 fleshy setae, each 30–35 µm long. Clypeolabral shield 145–150 µm long, 110–115 µm wide. Labium 80–85 µm long, 65–70 µm wide. Anterior spiracles 42.5–52.5 µm long, 25.0–27.5 µm wide across atrium; posterior spiracles 50–60 µm long, 25–35 µm wide across atrium. Legs well developed; coxa 90–105 µm long, hind trochanter + femur 215–220 µm long, hind tibia + tarsus 255–260 µm long, hind claw 25.0–27.5 µm long. Ratio of lengths of hind tibia + tarsus to hind trochanter + femur 1.16–1.18:1, ratio of lengths of hind tibia to tarsus 1.8–2.03:1, ratio of length of hind trochanter + femur to greatest width of femur 4.4–4.8:1. Tarsal digitules setose, each 32.5–35.0 µm long. Claw digitules subequal, each 27.5–35.0 µm long, knobbed and broader than tarsal digitules. Translucent pores present on femur and tibia of hind legs, totalling 16–24. Both pairs of ostioles present, posterior ostioles each with 5–7 trilocular pores and 2 or 3 setae, anterior ostioles each with 5 trilocular pores and 2 or 3 setae. Anal ring 60–62.5 µm wide, with 6 anal-ring setae, each 85–95 µm long.

Dorsum. Cerarii numbering 7 pairs, with pairs on posterior 4 abdominal segments, and on 3 pairs on head; anal lobe cerarii each with 2 conical setae, each 15.0–17.5 µm long, plus 5–7 trilocular pores; C17 each with 2 conical setae, each 15.0–17.5 µm long, plus 4 trilocular pores; C16 each with 2 conical setae, each 15 µm long, plus 2 trilocular pores; C15 each with 2 conical setae, each 11.0–12.5 µm long, plus 2 trilocular pores; C1 each with 2 conical setae, 10 µm long, plus 2 trilocular pores; C2 each with 2 conical setae, each 10 µm long, plus 3 trilocular pores; and C3 each with 3 conical setae, each 7.5–10 µm long, plus 2 trilocular pores. Dorsal body setae spine-like, each 10.0–12.5 µm long. Multilocular pores each 7.5–8.0 µm wide with 11 loculi, scattered throughout. Quinquelocular pores each 5–6 µm, scattered throughout. Trilocular pores each 5–6 µm in diameter, restricted to posterior abdominal segments VII, VIII and IX, and in cerarii, on ostioles and the middle area of thorax. Oral-collar tubular ducts present along body margin, each 9–11 µm long, 2–3 µm wide.

Venter. Body setae slender, each 15–65 µm long, longest setae medially on head; apical setae of anal lobe 145–165 µm long. Multilocular disc pores each 7.5–8.0 µm in diameter, present in rows or bands on posterior abdominal segments (IV–VIII + IX): 12 pores on segment IV, 12–24 on V, 32–36 on VI, 53–62 on VII, and 27–33 on VIII + IX. Quinquelocular pores each 5–6 µm wide, scattered throughout. Oral-collar tubular ducts each 7.5– 10.0 µm long, 2.5–3.0 µm wide, present in rows on all abdominal segments plus a few on head and thorax; distributed as follows: 2–4 on each side of abdominal segments I–III and a few medially; 4 on IV; 15–25 on V; 14–24 on VI; 19 on VII; 18–23 on VIII in row or band.

Comment. For a comparison of H. opertus with other species in the genus, see under H. gullae and H. kozari above.

Figures

FIGURE 4. Heterobrevennia opertus (Borchsenius) comb. nov., adult female.