Eriococcidae

Henderson, Rosa C., 2007, Three new genera and six new species of felt scales (Hemiptera: Coccoidea: Eriococcidae) from mountain habitats in New Zealand, Zootaxa 1449, pp. 1-29 : 3-4

Key to genera of Eriococcidae in New Zealand (adult females)

Modified from Henderson (2006)

1 Legs much reduced consisting of 1–4 fused segments or of vestigial sclerotised patches varying in size 2

- Legs normal: if small, then with at least 3 articulating segments and a claw............................................. 5

2 Legs much reduced, either to a single fused structure or on some specimens to a vestigial patch; each leg with one long seta, both pairs of tarsal and claw digitules and sometimes with a normal claw; cruciform pores present on dorsum ............................................................................................ Alpinococcus gen. nov

- Pro- and mesothoracic legs present as vestigial patches, or absent; metathoracic legs variable in shape; long setae, digitules and claw absent from legs; dorsal cruciform pores absent ........................................ 3

3 All legs represented by vestigial patches; invaginated 5-locular disc pores present; dorsal abdominal segments heavily sclerotised with intersegmental furrows ............................................... Kuwanina Cockerell

- Pro- and mesothoracic legs vestigial or absent; metathoracic legs reduced to either a ball-like coxa only, or tubular-shaped with 4 fused segments; 5-locular disc pores, if present, not invaginated; dorsal abdominal segments not furrowed or heavily sclerotised ............................................................................................ 4

4 Pro- and mesothoracic legs represented by vestigial patches; metathoracic legs tubular-shaped with 4 fused segments ................................................................................................................. Capulinia Signoret

- Pro- and mesothoracic legs entirely absent; metathoracic legs reduced to ball-like coxa only, covered with reticulate translucent pores ........................................................................................ Cryptococcus Douglas

5 Anal lobes represented by 1 pair of plates at inner end of an anal cleft, with a third, small median plate present between them anteriorly; spinose setae evenly and closely spaced in a single line around margin, forming a distinct fringe .............................................................................................................................. 6

- Anal lobes at posterior end of body, not represented by plates at inner end of an anal cleft; marginal spinose setae, when present, in an irregular line, often grouped segmentally ................................................. 7

6 Anal plates rounded posteriorly, each with a short apical seta finer than other dorsal setae; ventral seta L4 on anal plates blunt to spatulate ...................................................................................... Eriochiton Maskell

- Anal plates pointed posteriorly, each with a long, flagellate apical seta; ventral seta L4 sharply spinose.... ................................................................................................................................ Neoeriochiton Hodgson

7 Anal lobes not distinct or well developed, not extending beyond body margin; dorsal setae capitate; with clusters of 5 to 7-locular disc pores on dorsal submargin, each pore cluster associated with a microtubular duct; macrotubular ducts absent ............................................................................Affeldococcus Henderson

- Anal lobes distinct, either slightly or well developed and extending beyond body margin; dorsal setae spinose or setose, if truncate then not capitate; lacking dorsal disc pore clusters; with or without macrotubular ducts........................................................................................................................................................ 8

8 Anal lobes enlarged, sclerotised, with protruding lobules on inner sides; marginal setae long, spinose;

ventrally with a pair of discrete bands of disc pores extending at least from posterior spiracle, or from head, to near anal ring on either side of venter.................................................... Montanococcus gen. nov. - Anal lobes not greatly enlarged, without protruding lobules as above; disc pores not present as a discrete band on either side of venter........................................................................................................................ 9

9 Anal lobes heavily sclerotised, small in relation to body size, and not extending much beyond body margin; 5-locular disc pores on stalks scattered throughout dorsum, on margins of venter, and by atrium of spiracles; clypeo-labral shield set in a wide sclerotised border ................................... Bryococcus gen. nov.

- Anal lobes, 5-locular disc pores and clypeolabral shield not as above..................................................... 10

10 Anal lobes with a series of 10–12 enlarged setae on dorsum and margins, and with a series of conspicuous teeth on inner margins or ventral surface .................................................................................................. 11

- Anal lobes with no more than 7 enlarged setae on dorsum and margins, usually 3; teeth (if present on inner margins) few ............................................................................................................................................. 12

11 Legs well developed; macrotubular ducts absent on dorsum .......................................... Phloeococcus Hoy

- Legs reduced, coxa and trochanter+femur very small, tibia+tarsus short and usually fused; macrotubular ducts present on dorsum .................................................................................................... Noteococcus Hoy

12 Anal ring setae enclosed in a bell-shaped tube; dorsum strongly sclerotised and small relative to venter; macrotubular ducts absent ...................................................................................Hoheriococcus Henderson

- Anal ring setae not enclosed in a bell-shaped tube; dorsum either membranous or very lightly sclerotised, size variable relative to venter; macrotubular ducts present or absent...................................................... 13

13 Macrotubular ducts absent........................................................................................................................ 14

- Macrotubular ducts present........................................................................................................................ 15

14 Normal slender microtubular ducts with single bilocular vestibules present; adult females not forming a felted sac, in life usually with dorsal glassy wax tubules (if not in a gall) .......... Madarococcus sensu Hoy

- Microtubular ducts large, bilocular, of distinctive shape, with double, wide vestibules in tandem, each paired ductule opening into a wide oval atrium on derm; adult females in life either covered in loose wax or by a thick white wax ‘test’ ................................................................................................. Scutare Brittin

15 Medium size macrotubular ducts with a compressed vestibule present on venter; large macrotubular ducts with a cup-shaped vestibule absent; anal lobes small, membranous ................................. Stegococcus Hoy

- Medium size macrotubular ducts with compressed vestibules present or absent on venter; macrotubular ducts with cup-shaped vestibules present; anal lobes well developed ...................................................... 16

16 Anal lobes with 4 dorsal setae of which 3 stout and blunt plus 1 fine seta laterally; 5-locular disc pores of 2 distinct sizes, numerous on dorsum and venter ............................................................. Tolypecoccus Hoy

- Anal lobes with 3 dorsal setae of various shapes; 5-locular disc pores usually of one size, restricted to venter ............................................................................................................................................................... 17

17 Macrotubular ducts distributed over dorsum of most segments of body, even if few in number.................. ......................................................................................................................... Eriococcus Targioni Tozzetti

- Macrotubular ducts confined to dorsum of posterior abdominal segments....................... Sisyrococcus Hoy