Greenisca oreophila, Pellizzari, Giuseppina & Kozár, Ferenc, 2011

Pellizzari, Giuseppina & Kozár, Ferenc, 2011, A new species of Greenisca and two new species of Ovaticoccus from Italy (Hemiptera Coccoidea Eriococcidae), with a key to European genera of Eriococcidae., Zootaxa 3090, pp. 57-68 : 59

Greenisca oreophila sp. n.

(fig. 1)

Type data. Holotype, adult female, Italy, Lamon, (Belluno district), 600 m asl, on Poaceae leaves, 26.viii.1989, collected by G. Pellizzari, slide n. 199/1. Paratypes, 5 adult females, slides n. 199/2-6, same data as holotype; also 5 adult females, Italy, Agordo, (Belluno district), 611 m asl, on Poaceae leaves, 2.vii.1993, collected by G. Pellizzari, slides n. 495/1-5. Holotype and most paratypes deposited in DEAE, one paratype deposited in PPI.

Other material. 2 additional specimens collected and identified as G. gouxi by F. Kozár in Gersau, Switzerland, 8.viii.1993 and 15.viii.1993, on Brachypodium leaves, slides n. 4221 and 4236, in Kozár collection. These specimens have fewer marginal spines and, because of this, were not included into the paratype series.

Unmounted female. Body enclosed in a felted, whitish egg sac.

Mounted female. Body elongate-oval, 3.86 (3.0–4.72) mm long, 1.87 (1.55–2.28) mm wide.

Venter. Antennae usually 7 segmented; segment length (µm) I: 37 (36–48), II: 37 (31–41), III: 40 (40–53), IV: 74 (62–74), V: 30 (19–31), VI: 26 (19–31), VII: 48 (38–48), all segments with few setae, segment II with 1 sensory pore, segment VII with apical setae 38 (38–48) µm long, and with 3 sensory falcate setae, each 31 (31–36) µm long; segments V and VI each with single falcate seta 17–36 µm long. Frontal tubercles not seen. Eyes present on ventral margin. Labium 3 segmented, 91 (81–91) µm long; basal segment well developed, with two pairs of setae. Stylet loop lightly longer than labium. Legs well developed (lengths in µm): fore-coxae 75 (65–75), trochanter 46 (46–58), femur 152 (149–154), tibia 128 (123–139), tarsus 130 (127–134), claw 32 (32–36); mid-coxae 80 (72– 84), trochanter 46 (46–65), femur 170 (142–170), tibia 125 (125–144), tarsus 130 (127–144), claw 35 (34–36); hind-coxae 102 (82–102), trochanter 58 (58–72), femur 165 (161–171), tibia 160 (160–180), tarsus 148 (138–168), tarsal digitules knobbed, 54 (45–57), claw 32 (32–34), claw digitules 36–40, slightly knobbed. Mid- and hindcoxae with spinulae on anterior (ventral) surfaces ( Fig. 1 ); hindcoxae with translucent pores on posterior (dorsal) surface. Each trochanter with 2 sensory pores on each surface. Claws with denticles. All legs with a few flagellate setae and with sensory pore at base of each tarsus. Mesothoracic spiracles 35 (31–38) µm in diameter, with some quinquelocular pores at spiracular opening. Quinquelocular pores each 6 µm in diameter, sparse on most of surface; some on last abdominal segments with 10 loculi. Slender setae present, scattered on abdomen. Some longer median flagellate setae present on head, thorax and anterior abdominal segments. Cruciform pores in a very sparse submarginal band. Macrotubular ducts of 2 sizes: larger about 25 µm long, 7–8 µm wide, smaller about 20 µm long and 3–5 µm wide, present on all segments, each duct with a sclerotized rim surrounding orifice, particularly discernible on larger ducts; inner ductule of larger ducts longer than duct, ending in a flower-shaped gland; on abdomen, ducts shorter and narrower. Microtubular ducts few, present around body margin. Oviduct or internal genital organ barely discernible.

Dorsum. Spine-like setae 1–3 on margin of each abdominal segment, each 13–20 µm long. Dorsal spinose setae about 9 µm long, and hair-like setae about 14 µm long, scattered all over body. Macrotubular ducts, each 25 µm long, 7–8 µm wide, in very sparse bands on each segment. Microtubular ducts each about 4 µm long and 2 µm wide, with oval orifice, scattered among dorsal setae. Sclerotized quinquelocular (sometimes three locular) pores 7 µm wide, numerous, not forming groups. Anal ring situated on dorsum, well developed, 70 (67–74) µm wide, and 81 (78–84) µm long, with single row of pores and 6–8 setae, each 152 (137–170) µm long. Anal lobes well developed, not sclerotized, with 3 spine-like setae, each 43 µm long. Apical setae 270 (270–326) µm long. Cauda present.

Ethymology. The species epithet oreophila is based on the Greek words ρ oς (oros) = mountain and φίλoς (filos) = “loving, fond of ”, and means “mountain-loving” as this species has been collected so far only in mountain localities.

Affinities. G. oreophila is similar to G. gouxi Balachowsky , having sclerotized quinquelocular pores not grouped on dorsum and is similar to G. placida (Green) in having spine-like setae on margin of head, but G. o re o - phila differs from both in having marginal spine-like setae on the abdomen and three spine-like setae on each anal lobe.

Figures

FIGURE 1. Greenisca oreophila Pellizzari & Kozár, sp. n., adult female.