Peliococcus ilamicus Moghaddam

Moghaddam, Masumeh, 2013, A review of the mealybugs (Hemiptera: Coccoidea: Pseudococcidae, Putoidae and Rhizoecidae) of Iran, with descriptions of four new species and three new records for the Iranian fauna, Zootaxa 3632 (1), pp. 1-107 : 39-40

Peliococcus ilamicus Moghaddam sp. n.

( Fig. 20 )

Adult female

Described from 15 specimens.

DIAGNOSIS. Mounted adult female oval, 2.16–3.32 mm long and 1.44–2.20 mm wide. Anal lobes moderately well developed, each ventral surface bearing an apical seta 195–230 µm long. Antennae 9 segmented, each 450–510 µm long. Legs well developed; hind trochanter + femur 265–310 µm long; hind tibia + tarsus 325–375 µm long; claw about 30–35 µm long, with a denticle. Ratio of lengths of hind tibia + tarsus to hind trochanter + femur 1:1.20–1.22; ratio of lengths of hind tibia to tarsus 1:2.90–3.07. Translucent pores small, present on hind femur and tibia, but difficult to observe. Cerarii numbering 18 pairs. Anal lobe cerarii each with 2 slender lanceolate setae, each about 25 µm long, plus 1 or 2 small setae and about 13 trilocular pores, all situated on a membranous area; remaining cerarii each with 2 slender lanceolate setae and 2–4 trilocular pores, except ocular cerarii (C3) with 3 lanceolate setae and 4 trilocular pores. Circulus present, about 130 µm wide, divided by an intersegmental line, situated between abdominal segments III and IV. Ostioles well developed, with inner edges of lips weakly sclerotized, each lip with a few trilocular pores and 4 or 5 minute setae. Anal ring about 80 µm long and 74 µm wide, with 2 rows of pores and bearing 6 setae, each seta about 100 µm long.

Dorsal surface with short lanceolate setae, each mostly about 12–13 µm long, plus some minute setae, each about as long as a setal collar. Other single setae near midline of thorax each with 1 trilocular pore at base. A single dorsal cerarius present in median area of abdominal segment VII, with 2 lanceolate setae and 2 trilocular pores. Multilocular disc pores each about 7.5 µm in diameter, few across abdominal segment VII, plus 1 on abdominal segments V and VI. Trilocular pores evenly dispersed. Discoidal pores minute, scattered. Oral collar ducts of 2 sizes: large type each about 10 µm long and 5 µm wide associated with small type, each about 6.5 µm long and 4.5 µm wide, present on margin and submargin of head, thorax and abdominal segments I and IV, and also across abdominal segments V–VII; a few small type ducts also present on some abdominal segments.

Ventral surface with flagellate setae, each about 35 µm long, except for some short lanceolate setae present around margins and submargins. Multilocular disc pores similar to those on dorsum, present posterior to vulva and in 1 or 2 rows across posterior edge of abdominal segment VII; others present in a single row on posterior edges of abdominal segments II–VI, plus a few across anterior medial edge of abdominal segment VII. Trilocular pores evenly distributed. Discoidal pores minute and sparse. Quinquelocular pores fairly numerous in medial areas of thoracic segments. Oral collar ducts of 2 sizes similar to those on dorsum; large ducts associated with small ducts present on margins of abdominal segments III–VII, and small type also present medially on thorax and abdominal segments and dispersed on head and thorax.

MATERIAL EXAMINED.

Holotype, adult Ƥ, Iran. Ilam: Ilam, Meymeh, on Daphne angustifalia (Thymelaeaceae) , 3.x.2005 (HMIM).

Paratypes, Iran. Ilam: same data as holotype, 10 Ƥ (HMIM); Darreh Shahr, on Prosopis stephaniana (Fabaceae) , 2.x. 2005, 817 m., 4 Ƥ (HMIM).

ETYMOLOGY. The name refers to the Province of Ilam, where the type-series was collected.

COMMENTS. P. ilamicus is similar to P. kimmericus (Kiritshenko) in having: (i) presence of ostioles and circulus, (ii) large and small types of oral collar tubular ducts clearly associated together, and (iii) 18 pairs of cerarii. However, P. ilamicus differs from P. kimmericus in possessing (character states on P. kimmericus in brackets) (i) associations of large and small types of tubular ducts on margins and submargins of dorsal abdominal segments I–V, thorax and head, and across dorsal abdominal segments VI and VII (across of dorsal abdominal segments and thorax only), and (ii) absence of an anal lobe bar (present but only slightly sclerotized). P. ilamicus is also similar to P. tritubulatus (Kiritshenko) (Danzig, 2001) in having: (i) ostioles, circulus, (ii) absence of dorsal multilocular disc pores, (iii) large and small types of oral collar tubular ducts clearly associated together. But, P. ilamicus differs from P. tritubulatus in possessing (character states on P. tritubulatus in brackets) (i) associations of 1 large type and a single small type of ducts (associations of 1–3, mainly 2 large and a single small type of ducts).

Figures

FIGURE 20. Adult female Peliococcus ilamicus Moghaddam sp. n..