Peliococcus

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

Key to species of Peliococcus in the Palaearctric region, based on morphology of adult females

1. Circulus absent....................................................................................... 2

- Circulus present....................................................................................... 6

2. Dorsal oral collar tubular ducts of 2 sizes present............................................... P. courzius Goux

- Dorsal oral collar tubular ducts of only 1 size present......................................................... 3

3. Multilocular disc pores abundant throughout dorsum........................... P. m a r ti n e z i Gavrilov & Matile-Ferrero

- Multilocular disc pores either absent on dorsum or very few or only sparsely present on posterior abdominal segments..... 4

4. Dorsal conical setae larger than cerarian setae................................... Peliococcus mathisi (Balachowsky)

- Dorsal conical setae similar in size to cerarian setae.......................................................... 5

5. Antennae 8 segmented................................................................. P. spinigerus (Goux)

- Antennae 9 segmented............................................................. P. marrubii (Kiritchenko)

6. Dorsal oral collar tubular ducts of 2 sizes present............................................................ 7

- Dorsal oral collar tubular ducts of only 1 size present......................................................... 8

7. Quinquelocular pores abundant throughout venter..................................... P. chersonensis (Kiritchenko)

- Quinquelocular pores absent on venter or only a few present around mouthparts............... P. turanicus (Kiritchenko)

8. Multilocular disc pores either absent on dorsum or with very few (1–4) on posterior abdominal segments only........... 9

- Multilocular disc pores present throughout dorsum.......................................................... 11

9. Dorsal oral collar tubular ducts on abdominal segments few, rarely in a row; dorsal oral collar tubular ducts wide, more than twice that of ventral ducts............................................................. P. latitubulatus Danzig

- Dorsal oral collar tubular ducts on abdominal segments either in a single row or in dense double rows; dorsal oral collar tubular ducts narrow, subequal to or only slightly wider than that of ventral ducts........................................ 10

10. C1-C17 each with 2 or 3 trilocular pores.................................................. P. multispinus (Siraiwa)

- C1-C17 each with only 1 trilocular pore...................................................... P. loculatus Danzig

11. Quinquelocular pores absent on venter or with only a few present around mouthparts.............................. 12

- Quinquelocular pores abundant throughout venter........................................................... 13

12. Marginal cerarii numbering 11 pairs..................................................... P. vivarensis Tranfaglia

- Marginal cerarii numbering 17 pairs........................................................... P. ocanae Goux

13. Dorsal clusters present in abdominal segments VIII+IX...................................................... 14

- Dorsal clusters absent from abdominal segments VIII+IX..................................................... 16

14. Clusters with multilocular disc pores arranged in distinct transverse rows of about 10+ clusters on dorsum of thorax; dorsal multilocular disc pores on posterior abdominal segments in compact bands........................... P. rosae Danzig

- Clusters with multilocular disc pores few (<10) on dorsum of thorax and not in distinct transverse rows; dorsal multilocular disc pores present on posterior abdominal segments in separate clusters.......................................... 15

15. Antennae 7 or 8 segmented............................................................ P. calluneti (Lindinger)

- Antennae 9 segmented.......................................................... P. agriensis Kaydan , sp. nov.

16. Each cluster on dorsal abdominal segments well defined, with more than 6 multilocular disc pores.... P. globulariae (Goux)

- Each cluster on dorsal abdominal segments not well defined, with fewer than 5 multilocular disc pores................. 17

17. With more than 18 pairs of marginal cerarii; ventral multilocular disc pores abundant throughout; dorsal cerarii in a longitudi- nal row on mid-dorsum of all segments............................................... P. morrisoni (Kiritchenko)

- With fewer than 15 pairs of marginal cerarii; ventral multilocular disc pores restricted to a few on thorax and head; one dorsal cerarius restricted to abdominal segment VII and one on each thoracic segment.................... P. phyllobius (Goux)