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 : 92

Key to the Genera of the Eriococcidae of South America

(First-instar Nymphs)

1 Antennae with 6 or more segments......................................................................................................................... 4

- Antennae with fewer than 6 segments .................................................................................................................... 2

2(1) Thorax with 3 pairs of longitudinal lines of spinose setae dorsally (including marginal setae); anal lobes conspicuous; antennae with 3 or fewer segments ............................................................................................................... 3

- Thorax with 2 pairs of longitudinal lines of spinose setae dorsally (including marginal setae); anal lobes absent or slightly rounded; antennae with 4 or more segments ....................................................................... Tectococcus

3(2) Hind femur with 1 seta; anal lobes sclerotized ......................................................................... Pseudotectococcus

- Hind femur with 3 setae; anal lobes apparently unsclerotized .......................................................... Aculeococcus

4(1) Loculate pores absent from dorsum; much enlarged spinules absent from dorsum............................................... 5

- Loculate pores present on dorsum of abdominal segment I; dorsum with much enlarged spinules medially on posterior thoracic and anterior abdominal segments ............................................................................. Apiococcus

5(4) Body margin without conspicuous microducts (if microducts present, marginal microducts same size as other dorsal microducts); spinose setae not cupolate-shaped, not in dermal pocket ...................................................... 6

- Body margin with conspicuous microducts (marginal microducts conspicuously larger than other dorsal microducts); marginal spinose setae cupolate-shaped and in small dermal pocket ............................................. Melzeria

6(5) Submedial row of ventral loculate pores absent (if loculate pores present, in a submarginal row) ....................... 7

- Submedial row of ventral loculate pores present ................................................................................................. 10

7(6) Cruciform pores present submarginally on thorax; loculate pores present in a submarginal band on abdomen .... .......................................................................................................................................................... Oregmopyga *

- Cruciform pores absent; loculate pores restricted to near spiracles, absent from abdominal segments ................ 8

8(7) Spinose setae without conspicuously bulbous base; hind tibia with 3 or 4 setae ................................................... 9

- Spinose setae with base conspicuously bulbous; hind tibia with 2 setae................................................. Capulinia

9(8) Spinose setae longer than length of abdominal segment; discoidal pores present on dorsum (probably modified microtubular ducts) ....................................................................................................................... Carpochloroides

- Spinose setae shorter than length of abdominal segment; discoidal pores absent on dorsum...... Pseudocapulinia

10(6) Cruciform pores present ....................................................................................................................................... 12

- Cruciform pores absent ........................................................................................................................................ 11

11(10) Anal lobes platelike, not protruding from body margin, heavily sclerotized ....................................... Chilechiton

- Anal lobes plate not platelike, not protruding from body margin, weakly sclerotized.................. Hempelicoccus *

12(10) Labium 3 segmented; dorsum without simple pores ............................................................................................ 13

- Labium 1 segmented; dorsum with many simple pores ..................................................................... Exallococcus

13(12) Anal lobes weakly sclerotized, not platelike; ventral abdomen with 4 pairs of longitudinal lines of setae ............. ......................................................................................................................................................... Acanthococcus

- Anal lobes heavily sclerotized, platelike; ventral abdomen with 3 pairs of longitudinal lines of setae ................... ............................................................................................................................................................. Icelococcus