A systematic study of Peliococcus Borchsenius (Hemiptera: Coccoidea: Pseudococcidae), with descriptions of a new Palaearctic genus and four new species from Turkey Author Kaydan, Mehmet Bora text Zootaxa 2015 3920 2 201 248 journal article 10.11646/zootaxa.3920.2.1 2d24a189-902d-49e5-8e71-7595bee3fda4 1175-5326 245003 57A4B8A3-C5A5-45FB-96E6-B26123271F66 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)