Eriococcidae

Pellizzari, Giuseppina & Kozár, Ferenc, 2011, A new species of Greenisca and two new species of Ovaticoccus from Italy (Hemiptera Coccoidea Eriococcidae), with a key to European genera of Eriococcidae., Zootaxa 3090, pp. 57-68 : 58

Key to the genera of Eriococcidae in Europe

1. Anal ring not well developed, often without pores; cruciform pores present on midventer of abdomen; mostly on Agavaceae ....................................................................................... Ovaticoccus Kloet

- Anal ring well developed, with a row or rows of pores; cruciform pores absent on midventer of abdomen................ 2

2. Dorsum with cruciform pores or with discoidal pores or with both; on grasses...................................... 3

- Dorsum without cruciform pores or discoidal pores; hosts various including grasses................................. 5

3. Dorsum with large sclerotized groups of 5-locular pores........................................ G regoporia Danzig

- Dorsum without large sclerotized groups of 5-locular pores.................................................... 4

4. Dorsum without cruciform pores....................................................... Greenisca Borchsenius

- Dorsum with cruciform pores............................................................... Kaweckia Koteja

5. Large spinose setae situated in a row only on body margin, or restricted to anal lobe; mostly on grasses................................................................................................ Anophococcus Balachowsky

- Large spinose setae situated all over dorsum; hosts various..................................................... 6

6. With 5 setae on posterior tibia; microtubular ducts short; labium with 9 pairs of setae; mostly on herbaceous plants......... Rhizococcus Signoret. ............................................................. (in sense of Koteja, 1974)

- With 4 setae on posterior tibia; microtubular ducts long; labium with 8 pairs of setae; mostly on woody plants............ 7

7. Dorsal spinose setae much shorter than marginal setae: anal lobe with strong subapical setae; in Europe on such introduced plants as Araucaria and Leptospermum ......................................................... Uhleria Cooke

- At least some dorsal spinose setae about as long as marginal setae; anal lobes with hair-like subapical setae; hosts various... 8

8. Macrotubular ducts forming a wide band on lateral margins of both surfaces; dorsal enlarged setae of one size; ovisac not cov- ering dorsum; mostly in bark crevices of elm............................................... Gossyparia Signoret

- Macrotubular ducts numerous over dorsum, not forming a wide band on lateral margins of both surfaces; dorsal enlarged setae usually of more than one size; ovisac covering entire body; on woody plants.................................................................................................... Acanthococcus Signoret (in sense of Koteja, 1974)