NEOCOCCOID

Hodgson, Chris, 2020, A review of neococcid scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) based on the morphology of the adult males, Zootaxa 4765 (1), pp. 1-264 : 19-22

publication ID

https://doi.org/ 10.11646/zootaxa.4765.1.1

publication LSID

urn:lsid:zoobank.org:pub:C442D94C-0EB4-4509-B762-913707214819

DOI

https://doi.org/10.5281/zenodo.3796758

persistent identifier

https://treatment.plazi.org/id/03B2EA64-0A3D-4647-2CFC-FEA7FA57D225

treatment provided by

Carolina

scientific name

NEOCOCCOID
status

 

KEY TO EXTANT NEOCOCCOID HIGHER TAXA (MAINLY FAMILIES AND SUBFAMILIES) BASED ON ADULT MALE MORPHOLOGY

Macropterous and most brachypterous males.

(Note: this key includes all neococcoid families except Halimococcidae , Micrococcidae , Phoenicococcidae and Xenococcidae, the known males of which are all apterous – see key for apterous males below).

1. Compound eyes present. Abdominal spiracles generally present on at least some segments, each generally quite obvious, with a clearly sclerotised atrium or peritreme. Wings without microtrichia. Glandular pouches on abdominal segment VIII absent. Post-tergites, when present, generally lying more or less longitudinally along prothorax. Triangular plate absent........................................................................................... ARCHAEOCOCCOIDS

- Compound eyes absent, replaced by various arrangements of small, simple unicorneal eyes. Abdominal spiracles present (taxa close to Phenacoleachia View in CoL ) or absent; when present, atrium or peritreme extremely difficult to detect, presence generally indicated by branching tracheae in some or all abdominal segments. Wings with microtrichia. Frequently with a pair of glandular pouches laterally on abdominal segment VIII. Post-tergites, when present, lying transversely, parallel to anterior margin of scutum/prealare. Triangular plate present................................................................... 2

2. Simple, unicorneal eyes in a band 1, 2 or more eyes wide around head, each ocular sclerite generally with 5 or more simple eyes. Scutum without a quadrate membranous area lying dorsally between prescutum and scutellum............................................................................... Phenacoleachia View in CoL , Puto View in CoL , Steingelia View in CoL , and Pityococcus View in CoL

- Simple, unicorneal eyes present either in a band only 1 eye wide, each ocular sclerite generally with 4 or fewer simple eyes or, most frequently, with only a dorsal pair and a ventral pair. If 4 or 5 pairs of simple eyes present ( Kermesidae View in CoL and some Coccidae View in CoL ), then scutum with a quadrate membranous area between prescutum and scutellum dorsally … NEOCOCCOIDS.... 3

3. Scutum without a distinct, quadrate membranous area between prescutum and scutellum, although some areas of scutum may be membranous. Ocular sclerite and genae without polygonal reticulations (although with striations or concentric ridges often present around simple eyes)............................................................................. 4

- Scutum with a distinct, quadrate membranous area between prescutum and scutellum, with lateral margins generally demarcated by narrow sclerotised ridges. Ocular sclerite and genae with polygonal reticulations (though sometimes modified).. 16

Scutum without a distinct, quadrate membranous area between prescutum and scutellum

4. Bifurcated setae never present on tarsi. Penial sheath of various shapes but rarely broad basally and then narrowing abruptly to a long, narrow shaft, 3 or more times longer than broad basal section............................................ 5

- Bifurcated setae present on tarsi (these may be hard to see on some specimens). Penial sheath very long, broad basally and then narrowing abruptly to a long, narrow shaft, 3 or more times longer than broad basal section......................... 15

5. Claw digitules setose. Claw long, narrowing gradually to a sharp apex. Antennae with capitate setae restricted to apical segment. Postoccipital ridge absent or poorly developed, and then slender, V- or U-shaped. Lateropleurite narrow. Wing sensoria and alar setae often present. Trochanter with a Y-shaped ridge distally. Glandular pouches, when present, with more than 2 setae............................................................................................... 6

- Claw digitules capitate. Claw broad at base, abruptly tapering towards apex (except Dactylopius View in CoL ). Antennae often with capitate setae on all or most flagellar segments. Postoccipital ridge, when present, strong and laterally forked. Lateropleurite broad. Wing sensoria and alar setae generally absent. Trochanter without a Y-shaped ridge distally. Glandular pouches, when present, with only 2 setae..................................................................................... 8

6. Head with a pair of ocelli in addition to two pairs of simple eyes. Postocular ridge generally distinct. Postoccipital ridge generally distinct. Dorsal and ventral mid-cranial ridges usually well developed. Neck well developed between head and prothorax. Pronotal ridge and pronotal sclerite present. Propleural ridge well developed as a proepisternum + cervical sclerite which extends anteriorly to reach postocular ridge. Metaprecoxal ridge well developed. Ostioles between abdominal segments VI and VII often present. Glandular pouches usually present on abdominal segment VIII and occasionally also on segment VII. Generally macropterous, although occasionally brachypterous or apterous … PSEUDOCOCCIDAE Westwood. View in CoL ......... 7

- Head without ocelli, although two pairs of simple eyes generally present. Postocular ridge absent although a faint line occasionally present marking posterior margin of ocular sclerite. Dorsal mid-cranial ridge absent. Ventral mid-cranial ridge poorly developed or absent. Neck entirely absent. Pronotal ridge and pronotal sclerite absent. Propleural ridge well developed but short, only extending anteriorly about half-way to head. Metaprecoxal ridge absent. Ostioles absent. Glandular pouches absent, although 1 or more long setae may be present in this position on abdominal segment VIII. Possibly mostly apterous or brachypterous, occasionally macropterous........................................... RHIZOECIDAE Williams ( Figs 2–5 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 )

7. With two pairs of glandular pouches, one pair on abdominal segment VII and other on VIII (only 1 pair on Rastrococcus View in CoL spp). Preocular ridge ventrally long and distinct. Loculate pores usually present dorsally and along margins of abdomen in addition to those associated with glandular pouches. Lateropleurite broad. Penial sheath with a distinct constriction about half-way along length. Penial sheath without a distinct ventral slit extending to basal rod............ PHENACOCCINAE Šulc ( Figs 8 View FIGURE 8 , 9 View FIGURE 9 )

- Either without glandular pouches or with only a single pair on segment VIII. Preocular ridge absent ventrally. Loculate pores mainly restricted to abdominal margins and glandular pouches. Lateropleurite narrow. Penial sheath tending to narrow gradually, without a distinct constriction about half-way along length. Penial sheath with a distinct ventral slit extending to basal rod............................................................ PSEUDOCOCCINAE Cockerell ( Figs 10–13 View FIGURE 10 View FIGURE 11 View FIGURE 12 View FIGURE 13 )

8. Sensilla on each side of trochanter roundish and more or less forming a triangle. Antennae with 10 segments............ 9

- Sensilla on each side of trochanter rather oval to elongate and more or less in a straight line. Antennae with 9 or fewer segments............................................................................................. 12

-

9. Glandular pouch setae very short, less than 1/4 length of penial sheath, each with a blunt apex. Postoccipital ridge absent. Interocular ridge present. Claw long and narrow. Interocular ridge present.......... DACTYLOPIIDAE View in CoL Costa ( Figs 24 View FIGURE 24 , 25 View FIGURE 25 )

- Glandular pouch setae, when present, much longer and setose. Postoccipital ridge well developed, with lateral anterior and posterior extensions. Claw broad at base, abruptly tapering towards apex. Interocular ridge absent..................... 10

10. Hamulohalteres usually present (except Ovaticoccus View in CoL ). Postmesospiracular setae present or absent. Capitate setae present on at least some antennal segments.......................................................................... 11

- Hamulohalteres absent. Postmesospiracular setae absent. Capitate setae absent on all antennal segments....................................................................................... Apiomorpha Rübsaamen View in CoL ( Figs 19–23 View FIGURE 19 View FIGURE 20 View FIGURE 21 View FIGURE 22 View FIGURE 23 )

11. Alary setae absent. Postmesospiracular setae present. Capitate setae restricted to apical antennal segment................................................................................... Eriococcus buxi (Fonscolombe) View in CoL ( Fig. 42 View FIGURE 42 )

- Alary setae present. Postmesospiracular setae absent. Capitate setae present on other antennal segments in addition to apical segment.. ACANTHOCOCCIDAE GROUP ( Acanthococcus Signoret ; Eriochiton Maskell View in CoL ; Gossyparia Signoret ; Ovaticoccus Kloet View in CoL ) ( Figs 15–18 View FIGURE 15 View FIGURE 16 View FIGURE 17 View FIGURE 18 )

12. Antennae each with 9 segments. Penial sheath extremely long and needle-like, length greater than half total body length....

................................................................ Cylindrococcus spiniferus Maskell View in CoL ( Fig. 43 View FIGURE 43 ) - Antennae with 8 or fewer segments. Penial sheath not needle-like and never as long as half total body length........... 13

13. Antennae 8 or more segmented................. ERIOCOCCIDAE View in CoL ‘GONDWANA GROUP’ ( Callococcus Ferris ( Fig. 26 View FIGURE 26 ); Calycicoccus merwei Brain View in CoL ( Fig. 27 View FIGURE 27 ); Capulinia Signoret View in CoL ( Fig. 28 View FIGURE 28 ); Carpochloroides Cockerell View in CoL ( Fig. 29 View FIGURE 29 ); Choneochiton Hodgson ( Fig. 30 View FIGURE 30 ); Cystococcus Fuller View in CoL ( Fig. 31 View FIGURE 31 ); Dromedaricoccus Hodgson & Miller ( Fig. 32 View FIGURE 32 ); Eriogallococcus Hodgson & Magalhãaes ( Fig. 33 View FIGURE 33 ); Lachnodius Maskell View in CoL ( Fig. 34 View FIGURE 34 ); Lobimargo Hardy & Gullan ( Fig. 35 View FIGURE 35 ); Pseudotectococcus rolliniae Hodgson & Gonçalves ( Fig. 37 View FIGURE 37 ); Stibococcus Miller & Gonzalez View in CoL ( Fig. 38 View FIGURE 38 ); Tanyscelis Hardy & Gullan ( Fig. 39 View FIGURE 39 ); Tectococcus Hempel View in CoL ( Fig. 40 View FIGURE 40 ).

- Antennae with 7 or fewer segments.......................................................................... 14

14. Antennae seven segmented. Tarsal digitules normal, both arising more or less on dorsal surface of tarsus. Penial sheath divided into anterior segment IX and posterior style, but without a distinct “segmental” membrane separating them.................. BEESONIIDAE Green View in CoL ( Beesonia Green View in CoL ; Danumococcus Takagi ; Echinogalla Takagi View in CoL ; Gallacoccus Takagi View in CoL ; Mangalorea Takagi View in CoL ) ( Figs 44–46 View FIGURE 44 View FIGURE 45 View FIGURE 46 )

- Antennae 6 or 7 segmented. Tarsal digitules unusual, with one arising as normal from dorsal surface, other arising from close to base of claw laterally. Tarsal digitules often dissimilar in shape. Penial sheath clearly divided into anterior segment IX and posterior style, separated by a “segmental” membrane.................... STICTOCOCCIDAE Cockerell View in CoL ( Figs 47–52 View FIGURE 47 View FIGURE 48 View FIGURE 49 View FIGURE 50 View FIGURE 51 View FIGURE 52 )

Scutum without a distinct, quadrate membranous area between prescutum and scutellum; tarsi with bifurcated

setae

15. Antennae 10-segmented. Postoccipital ridge large and well defined. Tibio-tarsal articulation distinct. Abdominal segment IX not clearly separate from penial sheath. Claw long and narrow, without a denticle. Lateropleurite narrow. Trochanters particularly long, usually about 1/3rd length of trochanter + femur. Apical antennal segment pointed, apex with a single capitate seta. Ocular sclerite unsclerotised................................................ DIASPIDIDAE Costa ( Figs 59–61 View FIGURE 59 View FIGURE 60 View FIGURE 61 )

- Antennae with 9 or fewer segments. Postoccipital ridge absent. Tibia and tarsus fused, without any articulation. Abdominal segment IX clearly seperate from penial sheath, forming a distinct segment. Claw broad basally, with a distinct denticle. Lateropleurite broad. Trochanters not exceptionally long, each about 1/4th length of trochanter + femur. Apical antennal segment with a rounded apex and with 4 capitate setae. Ocular sclerite showing some sclerotisation.......................................................................................... CONCHASPIDIDAE Cockerell ( Figs 53–56 View FIGURE 53 View FIGURE 54 View FIGURE 55 View FIGURE 56 )

Scutum with a distinct, quadrate membranous area between prescutum and scutellum.

16. Setae on margins of penial sheath mainly quite long, each more than 10 µm long................................. 17

- Setae on margins of penial sheath all minute, mainly less than 5 µm long........................................ 20

17. Membranous area of mesothorax posterior to scutellum with polygonal reticulations throughout. Membranous area of scutum (between prescutum and scutellum) also often polygonally reticulated. Ventral surface of claw S-shaped, with broad basal part narrowing abruptly to a long, narrow apical part without a denticle. Tibia without tibial spurs. Segment VIII of abdomen present as an almost complete sclerotised ring........................ ASTEROLECANIIDAE Targioni Tozzetti ( Figs 70–74 View FIGURE 70 View FIGURE 71 View FIGURE 72 View FIGURE 73 View FIGURE 74 )

- Membranous area of mesothorax posterior to scutellum without polygonal reticulations. Membranous area of scutum (between prescutum and scutellum) without polygonal reticulations. Ventral surface of claw either not S-shaped as above or, if rather S-shaped, then with a denticle. Tibia with 1 or 2 tibial spurs. Segment VIII of abdomen, if sclerotised, not forming a complete sclerotised ring...................................................................................... 18

18. With 5 pairs of simple eyes, more or less arranged in a ring around head. Hamulohalteres present. Preocular ridge fusing medially or nearly so, at least extending over top of ventral simple eye. Penial sheath narrowing abruptly between segment IX and style. Cranial apophysis bifurcated......................................... KERMESIIDAE Boitard ( Figs 62–64 View FIGURE 62 View FIGURE 63 View FIGURE 64 )

- With only 2 pairs of simple eyes, one pair dorsally and other ventral. Hamulohalteres absent on known species. Preocular ridge never fusing medially and only rarely extending over top of ventral simple eye. Penial sheath not narrowing abruptly between segment IX and style. Cranial apophysis not bifurcated...................................................... 19

19. Penial sheath broad basally, narrowing abruptly about 1/4 along length to a long, thin, narrow style. Fleshy setae present on venter of abdomen. Ventral abdominal setae many times more abundant than dorsal abdominal setae. Tibia with two tibial spurs. Genae with polygonal reticulations. Glandular pouch setae, when present, subequal in length. Each glandular pouch deep................................................................... KERRIIDAE Targioni Tozzetti View in CoL ( Figs 65 View FIGURE 65 , 66 View FIGURE 66 )

- Penial sheath more or less triangular, not narrowing abruptly about 1/4 along length to a long thin narrow style. Fleshy setae absent on venter of abdomen. Ventral abdominal setae as abundant as dorsal abdominal setae. Tibia with one tibial spur. Genae without polygonal reticulations. Glandular pouch setae, when present, with one seta about half length of other. Each glandular pouch shallow..................................................... CEROCOCCIDAE Comstock View in CoL ( Figs 67–69 View FIGURE 67 View FIGURE 68 View FIGURE 69 )

20. Membranous area of mesothorax posterior to scutellum usually with a large area of sclerotisation. Penial sheath short, length generally less than 3x greatest breadth. Sternite VIII sclerotised, with a sclerotised ridge along lateral margins. Thoracic spiracles each with associated locular pores. Anus with a strongly sclerotised margin. Caudal extensions to abdominal segment VIII absent................................................................ ACLERDIDAE Signoret View in CoL ( Figs 78–86 View FIGURE 78 View FIGURE 79 View FIGURE 80 View FIGURE 81 View FIGURE 82 View FIGURE 83 View FIGURE 84 View FIGURE 85 View FIGURE 86 )

- Membranous area of mesothorax posterior to scutellum entirely membranous. Penial sheath long, length generally more than 4x greatest breadth. Sternite VIII generally without a sclerotised ridge along lateral margins. Thoracic spiracles without associated locular pores. Anus with membranous margins. Caudal extensions to abdominal segment VIII present, if only rounded. .................................................................................................. 21

21. Trochanter and femur fused (forming a trochantofemur). Tarsi with bifurcate setae. Preocular ridge, if present, extremely short. Ocelli present. With only 2 pairs of simple eyes. Basal membranous area at anterior end of penial sheath small or absent ventrally. Postoccipital ridge present. Glandular pouches absent. Aedeagus long, reaching or nearly reaching apex of penial sheath................................................................ LECANODIASPIDIDAE View in CoL (Figs 75,76)

- Trochanter and femur not fused. Tarsi without bifurcate setae. Preocular ridge always well-developed both dorsally and ventrally. Ocelli absent. Occasionally with up to 5 pairs of simple eyes. Basal membranous area present at anterior end of penial sheath. Postoccipital ridge generally absent. Glandular pouches present or absent. Aedeagus shorter, not nearly reaching apex of penial sheath.......................................................... COCCIDAE Linnaeus View in CoL ( Figs 87–94 View FIGURE 87 View FIGURE 88 View FIGURE 89 View FIGURE 90 View FIGURE 91 View FIGURE 92 View FIGURE 93 View FIGURE 94 )

Apterous and a few brachypterous adult males.

Note: apterous adult males are known in the Eriococcidae View in CoL View at ENA , Halimococcidae , Micrococcidae , Phoenicococcidae , Pseudococcidae , Rhizoecidae and Xenococcidae. A few brachypterous males are known with very reduced or no thoracic sclerotisation, e.g., the pseudococcid Mirococcus (Polystomophora) ostiaplurimus (Kiritchenko, 1940) .

1. Compound eyes present............................................................... ARCHAEOCOCCIDS

- Compound eyes absent................................................................................ 2

2. Simple eyes and ocelli absent........................................................................... 3

- Simple eyes and/or ocelli present........................................................................ 4

- Legs very much reduced, anterior legs 1 segmented, meso- and metathoracic legs 3 or 4 segmented. Antennae reduced to a single segment with a bunch of about 20 setae. Each caudal extension on abdominal segment VIII unsclerotised and rounded. Dermal pores entirely absent. Penial sheath short and stout, length subequal to basal width.................................................................................... ACLERDIDAE View in CoL ) ( Nipponaclerda McConnell View in CoL , Fig. 85 View FIGURE 85 )

4. Claw digitules apically clubbed. Claws not long and narrow, rather broad basally and quite short. Simple eyes present or absent but ocelli present. Tarsi only one segmented. Loculate pores absent. Antennal segment III very narrow (stalk-like) basally.. 5

- Claw digitules short and setose. Claws generally long and narrow, tapering to a sharp point. With or without glandular pouches, when pouches absent, generally with a few longer setae in this position. Simple eyes generally present. Tarsi 1 or 2 segmented. Loculate pores generally present. Antennal segment III not especially narrow and stalk-like.......................... 7

5. Abdomen at least as long as thorax and tapering evenly to penial sheath. Penial sheath triangular and about as long as previous segment. Tibial spurs present. Abdominal tergites and sternites absent................................................................................................ CRYPTOCOCCIDAE ( Pseudochermes Cockerell View in CoL ) ( Fig. 41 View FIGURE 41 )

- Abdomen short, often only as long as metathorax. Penial sheath of variable shape but much longer than previous segment. Tibial spurs absent. Abdominal tergites and sternites generally present, at least on segment VIII....................... 6

6. Antennae rather short, with distal 4 segments forming a club. Apical antennal segment with a knob-like apex. Fleshy setae on antennae short. Legs rather reduced. Tarsi with sensory areas. Tarsus subequal in length to tibia. Fleshy setae present only on apical 3 antennal segments. Fleshy setae absent from legs.................. PHOENICOCOCCIDAE Cockerell View in CoL ( Fig. 57 View FIGURE 57 )

- Antennae short or long, but either with only distal 3 antennal segments forming a club or without a club. Apical antennal segment without a knob-like apex. Fleshy setae on antennae quite long. Tarsi without sensory areas. Fleshy setae present on all antennal segments. Fleshy setae present on legs, at least femora............... HALIMOCOCCIDAE Cockerell View in CoL ( Fig. 58 View FIGURE 58 )

7. Head with two pairs of simple eyes plus a pair of ocelli. Postocular ridge distinct. Postoccipital ridge present or absent. Ventral mid-cranial ridges usually well developed. Propleural ridge generally well developed as a proepisternum + cervical sclerite, extending anteriorly to reach head. Ostioles sometimes present between abdominal segments VI and VII. Glandular pouches usually present on abdominal segment VIII, each with a group of loculate pores....... PSEUDOCOCCIDAE View in CoL ( Figs 13 View FIGURE 13 , 14 View FIGURE 14 )

- Head without ocelli, although two pairs of simple eyes present on most Rhizoecinae . Postocular ridge absent although a faint line occasionally present marking posterior margin of ocular sclerite on Rhizoecinae . Postoccipital ridge absent. Ventral midcranial ridge poorly developed or absent. Pronotal ridge and pronotal sclerite absent. Propleural ridge short, not nearly reaching head. Ostioles absent. Glandular pouches absent, although 1 or more long setae may be present in this position on abdominal segment VIII, without associated loculate pores............................................................. 8

s8. Body cylindrical or laterally flattened, somewhat pointed at both ends. Without caudal extensions (anal lobes). Two pairs of simple eyes generally present. Preocular ridges generally present although often weak. Base of antennae placed close together near anterior margin of head. Tarsi generally clearly 2 segmented. Penial sheath clearly extending posteriorly from posterior margin of abdominal segment VIII, often about as broad as long............................ RHIZOECIDAE ( Fig. 5 View FIGURE 5 )

- Body generally showing some modification for transport by ants, either with an enlarged cephalothorax and narrow abdomen or with body laterally flattened. Without simple eyes. Preocular ridges absent. Base of antennae may be either close together or far apart near anterior margin of head. Tarsi 1 segmented. Penial sheath generally lying beneath abdominal segment VIII (except Eumyrmococcus taylori Williams View in CoL )........................................... XENOCOCCIDAE Tang ( Figs 6 View FIGURE 6 , 7 View FIGURE 7 )

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