Crisicoccus Ferris 1950

Tanaka, Hirotaka & Kamitani, Satoshi, 2022, Review ofthegenus CrisicoccusFerris (Hemiptera: Coccomorpha: Pseudococcidae) in Japan with description of a new species, and the identity of a South Korean mealybug misidentified as Crisicoccus matsumotoi (Shiraiwa 1935), Zootaxa 5209 (5), pp. 555-572 : 556

Genus Crisicoccus Ferris 1950

Crisicoccus Ferris 1950: 45 .

Type species: Dactylopius pini Kuwana 1902 .

Genus diagnosis (adapted and modified from Williams 2004). Body of adult female normally broadly oval; anal lobe developed, each lobe with an anal lobe bar and bar seta present on ventral surface. Antennae each usually with 7 or 8 segments. Legs well developed, translucent pores usually present (rarely absent) on hind coxae, present also on hind tibiae and sometimes on hind femora. Tarsal digitules knobbed. Circulus normally present. Anterior and posterior ostioles present. Anal ring normal, usually bearing 6 setae. Cerarii numbering 0–17 pairs, each containing 2 conical setae or sometimes reduced to a single conical seta; often cerarii on head and thorax indistinct; preocular cerarii (C 2) absent. Auxiliary setae rarely present except on anal lobe cerarii. Body setae often flagellate, sometimes conical or spiniform. Trilocular pores normal. Multilocular disc pores present, usually confined to venter. Oral rim tubular ducts absent. Oral collar tubular ducts present on venter and sometimes also on dorsum.

Remarks. According to Williams (2004), Crisicoccus is considered a convenient genus to include any species possessing well-developed anal lobe bars that do not fit the features of other mealybug genera with anal lobe bars. Crisicoccus is quite similar to Formicococcus Takahashi 1928 and Planococcus Ferris 1950 and so it may be difficult to distinguish these genera. Further morphological and molecular phylogenetic studies of these three genera are greatly needed.