Eriococcidae, Cockerell, 1899

Hodgson, Chris & Miller, Dug, 2010, A Review of the Eriococcid Genera (Hemiptera: Sternorrhyncha: Coccoidea) of South America 2459, Zootaxa 2459 (1), pp. 1-101 : 90-91

Key to the Genera of the Eriococcidae of South America

(Adult Females)

1 Legs present, sometimes greatly reduced or located near anal opening ................................................................ 5

- Legs absent ............................................................................................................................................................. 2

2(1) Conspicuously enlarged setae (excluding marginal setae) absent from dorsum.................................................... 3

- Conspicuously enlarged setae present on dorsum, either enlarged and narrow on posterior abdominal segments ( Fig. 27 ) or cupolate-shaped and robust scattered over thorax and abdomen ( Fig. 5 ) ........................................... 4

3(2) Antennae segmented; quinquelocular pores restricted to ventral thorax mostly near spiracles, absent from dorsum ............................................................................................................................................... Pseudocapulinia

- Antennae each represented by an unsegmented knob; quinquelocular pores present on both body surfaces ......... ...................................................................................................................................................... Carpochloroides

4(2) Enlarged setae of 2 types present, cupolate-shaped setae on anterior abdomen, thorax, and head, and elongate setae on posterior abdominal segments ...................................................................................... Macracanthopyga

- Enlarged setae cupolate-shaped only present, scattered over dorsum................................................... Apiococcus

5(1) Antennae with 6 or more segments ...................................................................................................................... 10

- Antennae with 5 or fewer segments ....................................................................................................................... 6

6(5) Without ring of tubular ducts surrounding apex of abdomen................................................................................. 7

- With ring of tubular ducts surrounding apex of abdomen ........................................................................ Capulinia 7(6) Legs large, well developed .................................................................................................................................... 8

- Legs small, abortive .......................................................................................................................... Aculeococcus

8(7) Enlarged setae not grouped in circular area on thorax and head ........................................................................... 9

- Enlarged setae grouped in circular area on thorax and head ............................................ Neotectococcus (in part)

9(8) Anal lobes protruding, heavily sclerotized................................................................................ Pseudotectococcus

- Anal lobes absent or very small, unsclerotized ..................................................................... Tectococcus (in part)

10(5) Anal lobes absent or, if present (sclerotised or not), not protruding noticeably past posterior apex of abdomen .. .............................................................................................................................................................................. 22

- Anal lobes present, clearly protruding from posterior apex of abdomen............................................................. 11

11(10) Macrotubular ducts present on dorsum ................................................................................................................ 15

- Macrotubular ducts absent from dorsum.............................................................................................................. 12

12(11) Antennae 6 segmented; without a cluster of spinose setae ventrally between meso- and prothoracic legs......... 13

- Antennae 8 segmented; with a cluster of spinose setae ventrally between meso- and prothoracic legs.................. ................................................................................................................................................... Eriobalachowskya

13(12) Loculate pores absent from spiracular atria; anal ring with 8 setae and with a double row of pores ................. 14

- Loculate pores present in spiracular atria; anal ring with 10 setae and with a single row of pores ...... Poliloculus

14(13) Dorsal setae large, conspicuously spiniform; translucent pores on hind coxa represented by large openings ........ ............................................................................................................................................................. Icelococcus

- Dorsal setae small, slightly spiniform; translucent pores on hind coxa represented by small dots ... Intecticoccus

15(11) At least some macrotubular ducts on dorsum with a conspicuous rim surrounding dermal orifice .................... 20

- Macrotubular ducts on dorsum without a conspicuous rim surrounding dermal orifice ..................................... 16

16(15) Without groups of microducts on dorsum of thorax and anterior abdominal segments ...................................... 17

- With conspicuous groups of microducts on dorsum of thorax and anterior abdominal segments ... Hempelicoccus

17(16) Setae in medial areas of ventral abdomen with acute apices; translucent pores present on some, but not all, of the following hind leg segments: coxa, femur and tibia............................................................................................. 18

- Some setae in medial areas of ventral abdomen slightly capitate; translucent pores present on all of the following hind leg segments: coxa, femur and tibia ............................................................................................. Coxicoccus

18(17) Anal lobes conspicuous and sclerotized............................................................................................................... 19

- Anal lobes small and unsclerotized ..................................................................................... Oregmopyga (in part)

19(18) Anal lobes plate-like, not protruding strongly ....................................................................... Chilecoccus (in part)

- Anal lobes not plate-like, protruding strongly ................................................ Acanthococcus and Madarococcus

20(15) Venter with tubular ducts; dorsum without simple pores; cruciform pores absent .............................................. 21

- Venter without tubular ducts; dorsum with numerous simple pores; cruciform pores present on venter near body margin .................................................................................................................................................. Exallococcus

21(20) Venter with large clusters of tubular ducts; posterior abdomen without sclerotised nodules; anal lobes unsclerotised ........................................................................................................................................ Stibococcus (in part)

- Venter with tubular ducts scattered; posterior abdomen with sclerotised nodules; anal lobes heavily sclerotised. .................................................................................................................................................................. Orafortis

22(10) Anal lobes without conspicuous sclerotisation .................................................................................................... 24

- Anal lobes conspicuously sclerotised................................................................................................................... 23

23(22) Enlarged setae forming conspicuous band around body margin.......................................................... Chilechiton

- Enlarged setae not forming conspicuous band around body margin ..................................... Chilecoccus (in part)

24(22) Enlarged setae absent or, if present, not grouped in circular area on dorsum of thorax and head ....................... 25

- Enlarged setae grouped in circular area on dorsum of thorax and head........................... Neotectococcus (in part)

25(24) Venter without large clusters of tubular ducts on abdomen ................................................................................ 26

- Venter with large clusters of tubular ducts on abdomen ........................................................ Stibococcus (in part)

26(25) Largest dorsal macroducts without associated setae ............................................................................................ 27

- Largest dorsal macroducts with 1–3 associated setae ............................................................................... Melzeria

27(26) Some dorsal setae cupolate; without wing-like apodemes arising from mouthparts ........... Oregmopyga (in part)

- Dorsal setae not cupolate; with large wing-like apodemes attached to mouthparts................ Tectococcus (in part)

Figures

FIGURE 5. Apiococcus gregarius Hempel. Adult female, where A = variously-shaped dorsal setae; B = dorsal microtubular duct; C = dorsal loculate pore; D = area of derm showing position of microtubular ducts and loculate pores; F = view of anal area, showing position of inner pouches; J = ventral setae; L = ventral loculate pore; P = spiracle; V = antenna, and X = anal pouch with sunken loculate pores.

FIGURE 27. Macracanthopyga verganiana Lizer y Trelles. Adult female; where B = dorsal microduct; L = ventral loculate pore; R = marginal spinose seta; S = nodulose derm on abdominal margin; V = antenna; X = setae on anal plates, and Z = view of specimen with more frequent cupolate-shaped (minaret) setae and dorsal microtubular ducts.