Pseudococcidae

Field: Agricultural and Biological Sciences (Life Sciences)

Key to adult females of Pseudococcidae present in Uruguay [Adapted from Cox & Ben-Dov (1986), Williams & Granara de Willink (1992), Granara de Willink (2003), Granara de Willink & Szumik (2007), Kaydan & Gullan (2012) and Granara de Willink & González (2018)]. 1 Dorsal tubular ducts large, each with orifice surrounded by a circular, sclerotized area containing 1 seta or more within its borders, or with the setae adjacent to the rim.............................................. (Ferrisia Fullaway) ... 2 - Dorsal tubular ducts, if present, without this combination of characters........................................... 4 2(1) Ventral oral collar tubular ducts of at least 2 sizes: smaller ducts in segmental clusters on body margin, and on at least the last 2 or 3 abdominal segments; larger ducts often each with a circular discoidal pore in sclerotized collar of duct or on derm nearby....................................................................... Ferrisia cristinae Kaydan & Gullan - Ventral oral-collar tubular ducts of 1 size, never in clusters on body margin....................................... 3 3(2) Multilocular disc pores absent................................................... Ferrisia meridionalis Williams - Multilocular disc pores present at least around vulva..................... Ferrisia terani Williams & Granara de Willink 4(1) Oral rim tubular ducts present somewhere on the body........................................................ 5 - Oral rim tubular ducts absent........................................................................... 14 5(4) Cerarii, anterior to anal lobe pair, mostly with auxiliary setae.......................... (Pseudococcus Westwood) ... 6 - Cerarii, anterior to anal lobe pair, without auxiliary setae..................................................... 11 6(5) Discoidal pores present next to eyes...................................................................... 7 - Discoidal pores absent from next to eyes................................................................... 8 7(6) Translucent pores present on hind coxae; cerarii each with only 1 associated oral rim tubular duct.................................................................................................. Pseudococcus cryptus Hempel - Translucent pores absent from hind coxae; most cerarii each with 2 or 3 associated oral rim tubular ducts of 2 sizes........................................................................ Pseudococcus longispinus (Targioni Tozzeti) 8(6) Hind leg with translucent pores on tibia only................................................................ 9 - Hind leg with translucent pores on more than 2 segments..................................................... 10 9(8) Discoidal pores next to each eye situated in a sclerotized rim............... Pseudococcus scatoterrae Granara de Willink - Discoidal pores next to each eye not situated in a sclerotized rim.................... Pseudococcus sociabilis Hambleton 10(8) Hind leg with translucent pores present on femur and tibia only........................ Pseudococcus viburni (Signoret) - Hind leg with translucent pores on coxa, trochanter, femur and tibia........... Pseudococcus pabulum Granara de Willink 11(5) Cerarii usually numbering 8–13 pairs.......................................... Spilococcus mamillariae (Bouché) - Cerarii numbering fewer than 6 pairs.............................................(Chorizococcus McKenzie) ... 12 12(11) Cerarii present on the last 4 or 5 abdominal segments....... Chorizococcus jeanfrancoisi Pacheco da Silva & Kaydan sp. n. - Cerarii present on last abdominal segment only............................................................ 13 13(12) Circulus present, small..................................... Chorizococcus rostellum Williams & Granara de Willink - Circulus absent................................................. Chorizococcus uruguayensis Granara de Willink 14(4) Derm surrounding hind coxa with many minute pores............................ Saccharicoccus sacchari (Cockerell) - Derm surrounding hind coxa without minute pores.......................................................... 15 15(14) Dorsal setae flagellate................................................................................ 16 - Dorsal setae lanceolate................................................................................ 23 16(15) Cerarii numbering 18 pairs; anal lobe bars present....................................... (Planococcus Ferris) ... 17 - Cerarii numbering fewer than 18 pairs; anal lobe bars absent.................................................. 19 17(16) Head with oral collar tubular ducts numbering 4–35 (rarely 1–3); sum of oral collar ducts next to the 8 th pair of cerarii on both sides numbering 1–30; cerarian setae on head stout; hind femur without translucent pores........................... 18 - Head with oral-collar ducts numbering 0–2 (rarely 3 or 4); sum of oral collar ducts next to the 8 th pair of cerarii on both sides numbering 0–4; cerarian setae on head slender; hind femur often with a few translucent pores...................................................................................................... Planococcus ficus (Signoret) 18(17) Ratio of lengths of hind tibia+tarsus to trochanter+femur 1.1–1.3:1; multilocular disc pores on posterior edge of abdominal segment VI usually forming a more-or less single row..................................... Planococcus citri (Risso) - Ratio of lengths of hind tibia+tarsus to trochanter+femur 1.04–1.18:1; multilocular disc pores on posterior edge of abdominal segment VI usually forming a double row........................................... Planococcus minor (Maskell) 19(16) Cerarii numbering 4 pairs.............................. Hypogeococcus concordiensis Williams & Granara de Willink - Cerarii numbering more than 14 pairs.................................................(Dysmicoccus Ferris) ... 20 20(19) Cerarii numbering 14 pairs........................................... Dysmicoccus bonaerensis Granara de Willink - Cerarii numbering 17 pairs............................................................................. 21 21(20) Hind leg with translucent pores present on 4 segments..................... Dysmicoccus umbambae Granara de Willink - Hind leg with translucent pores restricted to hind tibia and femur.............................................. 22 22(21) Oral-collar tubular ducts of 1 size; dorsum of last abdominal segment with long setae and simple pores each much larger than a trilocular pore............................................................ Dysmicoccus brevipes (Cockerell) - Oral-collar tubular ducts of 2 sizes; dorsum of last abdominal segment with short setae and simple pores each about same size as a trilocular pore............................................................ Dysmicoccus texensis (Tinsley) 23(15) Antenna 7 segmented; circulus absent; quinquelocular pores absent..................... Nipaecoccus armatus (Hempel) - Antenna 9 segmented; circulus present; ventral quinquelocular pores often present......... (Phenacoccus Cockerell) ... 24 24(23) Dorsal multilocular disc pores present in rows across segments................................................ 25 - Dorsal multilocular disc pores absent from dorsum except for 1 or 2 on or near margins............................ 28 25(24) Ventral quinquelocular pores absent, or numbering only 1 or 2 next to mouthparts and on mid-thorax..................................................................................... Phenacoccus tucumanus Granara de Willink - Ventral quinquelocular pores numerous................................................................... 26 26(25) Larger dorsal setae each with a few trilocular pores next to setal collar.................. Phenacoccus madeirensis Green - Dorsal setae without trilocular pores next to setal collars..................................................... 27 27(26) Mid-region of abdominal dorsum with multilocular disc pores; some dorsal lanceolate setae each with a swelling in the apical region............................................. Phenacoccus montevidensis Pacheco da Silva & Kaydan sp. n. - Mid-region of abdominal dorsum without multilocular disc pores; multilocular pores restricted to a few on margins; all dorsal lanceolate setae evenly tapered.................................... Phenacoccus sisymbriifolium Granara de Willink 28(24) Quinquelocular pores absent on venter........................................... Phenacoccus solenopsis Tinsley - Quinquelcular pores present on venter.................................................................... 29 29(28) Cerarii numbering 3 pairs, on the posteriormost abdominal segments........ Phenacoccus uruguayensis Granara de Willink - Cerarii numbering 18 pairs............................................................................. 30 30(29) Dorsal oral-collar tubular ducts numerous, scattered....................... Phenacoccus peruvianus Granara de Willink - Dorsal oral-collar tubular ducts restricted to margins.................................. Phenacoccus parvus Morrison