Spilococcus 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 : 567

Genus Spilococcus Ferris 1950

Spilococcus Ferris 1950: 219 .

Type species: Dactylopius gutierreziae Cockerell 1896 .

Genus diagnosis (modified from McKenzie 1967). Body of adult female elongate oval to broadly oval; anal lobe developed, each lobe without anal lobe bar and bar seta, usually with 2 conical setae, 1 or more slender auxiliary setae, and a concentration of trilocular pores. Other cerarii usually numbering 6–17 pairs, each containing 2 conical setae and a slight concentration of trilocular pores. Antennae each usually with 8 segments, slender. Legs well developed, translucent pores often present on hind coxae and hind tibiae. Tarsal digitules knobbed. Circulus present or absent. Anterior and posterior ostioles usually present. Anal ring normal, usually bearing 6 setae. Body setae often flagellate, sometimes conical or spiniform. Trilocular pores normal. Multilocular disc pores present, usually confined to venter. Oral rim tubular ducts present at least on dorsum. Oral collar tubular ducts present on venter at least.

Remarks. The genus Spilococcus is similar to Paracoccus Ezzat & McConnell 1956 in having oral rim tubular ducts and a small number of cerarii (<17) and in some cases it may be difficult to distinguish them; at least one species currently placed in Spilococcus should be transferred to Paracoccus (see “Remarks” under Spilococcus pacificus ). Further morphological and molecular phylogenetic studies including these two genera are greatly needed. The separation of Crisicoccus from Spilococcus is discussed in “Remarks” under C. seruratus above.