Eriococcidae, Cockerell, 1899

Miller, Douglass R. & Stocks, Ian C., 2022, New genera and species of felt scales (Hemiptera: Coccomorpha: Eriococcidae), with descriptions of new species and immature instars of described species, Zootaxa 5221 (1), pp. 1-213 : 11

Key to Nearctic genera of Eriococcidae , based on adult females

Notes: The generic key is intended to facilitate identification of eriococcid species occurring in the Nearctic region; it may not agree with all current generic concepts and may not work with congeneric species found in other geographic regions. Some of the genera given in ScaleNet as occurring in the Nearctic are subsumed within other genera, pending a more definitive analysis of the morphological and molecular character systems. Here we consider Anophococcus Balachowsky 1954 , Gossyparia Signoret 1875 , Rhizococcus , and Uhleria as part of Acanthococcus ; however, formally they are not considered synonyms. We formally synonymize Cornoculus syn. n. and Oregmopyga syn. n. as junior subjective synonyms of Ovaticoccus . We also describe two new genera, i.e., Carphococcus gen. n. and Ypofloiococcus gen. n. Cryptococcus Douglas 1890 is treated as part of the Eriococcidae , rather than as a separate family in agreement with the analysis of Gwiazdowski et al. (2006) and Nan et al. (2013). Eriococcus is now restricted to two species ( Kozár et al. 2013) that do not occur in the Nearctic.

1(0) Legs absent, or represented by unsegmented remnants........................................................ 2

– Legs present, with distinct segments...................................................................... 8

2(1) Microtubular ducts elongate, more than 4 times longer than wide, with single internal sclerosis....................... 3

– Microtubular ducts short, or absent, less than 4 times longer than wide, with double internal sclerosis.................. 6

3(2) Leg remnants present, represented by pore plate or unsegmented swellings....................................... 4

– Leg remnants absent...................................................... Carpochloroides Cockerell (in part)

4(3) Leg remnants present near anal ring; hind leg remnants represented by unsclerotized projection....................... 5

– Leg remnants present near posterior spiracle; hind leg remnants represented by sclerotized plate... Cryptococcus Lindinger

5(4) Multilocular pores present on venter and dorsum, not restricted to spiracular area...... Carpochloroides Cockerell (in part)

– Multilocular pores restricted to area near spiracles on venter.................................... Capulinia Signoret

6(2) Microtubular ducts and cruciform pores present............................................................. 7

– Microtubular ducts and cruciform pores absent............................................... Xerococcus Ferris

7(6) Pore plate absent; enlarged setae restricted to abdomen; cruciform pores restricted to venter.............................................................................................. Carphococcus Miller and Stocks gen. n.

– Pore plate present posterior to hind spiracle; enlarged setae scattered over dorsum; cruciform pores present on dorsum and venter............................................................................... Apezococcus Ferris

8(1) Anal ring bearing 3 pairs of setae; anal lobes not projecting or projecting slightly, each usually without enlarged setae..... 9

– Anal ring bearing 4 pairs of setae; anal lobes projecting, each usually with 2–4 enlarged setae..... Acanthococcus Signoret

9(8) Anal-ring setae flagellate, apically acute; body margin without apically acute projections, occasionally with dome-shaped projections or reticulate pattern......................................................................... 10

– Anal-ring setae enlarged, apically truncate; body margin with numerous apically acute projections Hypericicoccus Williams

10(9) Spiracles without concentrated cluster of multilocular pores in atrium or false atrium.............................. 11

– Spiracles with concentrated cluster of multilocular pores in atrium or false atrium................ Spiroporococcus Miller

11(10) Macrotubular ducts, when present, without enlarged flap attached to vestibule; antennae each with apical 3 segments with sensory setae; labium usually 3-segmented................................................... Ovaticoccus Kloet

– Macrotubular ducts with enlarged flap attached to vestibule; antennae each with apical 2 segments with sensory setae; labium 2-segmented......................................................... Ypofloiococcus Miller and Stocks gen. n.