Callococcus Ferris 1918

Hodgson, Chris, 2020, A review of neococcid scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) based on the morphology of the adult males, Zootaxa 4765 (1), pp. 1-264: 74

publication ID

http://doi.org/ 10.11646/zootaxa.4765.1.1

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:C442D94C-0EB4-4509-B762-913707214819

DOI

http://doi.org/10.5281/zenodo.3796797

persistent identifier

http://treatment.plazi.org/id/03B2EA64-0A66-461B-2CFC-FE09FD7DD172

treatment provided by

Carolina

scientific name

Callococcus Ferris 1918
status

 

Callococcus Ferris 1918  

Callococcus Ferris 1918: 328   . Type species: Sphaerococcus pulchellus Maskell   by monotypy and original designation.

Introduction. The generic name Callococcus   was introduced by Ferris in 1918 to take Sphaerococcus pulchellus Maskell   , at that time the only species placed in the genus, which was then considered to belong to the Asterolecaniidae   . Later, Morrison and Morrison (1927) revised the genus, transferred 2 more of Maskell’s Sphaerococcus   species to Callococcus   , namely S. acaciae Maskell 1893   and S. leptospermi Maskell 1894   , but retained Callococcus   within the Asterolecaniidae   . However, the type species of the genus Sphaerococcus   ( S. casuarinae Maskell 1892   ) belongs to the Pseudococcidae   and so the species previously placed in Sphaerococcus Maskell   were reviewed by Miller et al. (1998) and most were transferred to other families and genera. Miller et al.’s revision confirmed the placement of S. acaciae   and S. leptospermi   in Callococcus   and transferred S. newmanni Froggatt 1921   to it. Miller et al. also placed Callococcus Ferris   within the Eriococcidae   . The genus therefore now contains 4 species, all from mainland Australia. The adult male of C. leptospermi (Maskell)   is redescribed below and it is clear that the males of this species are very similar to those of other Gondwanan eriococcids and therefore that the placement within the Eriococcidae   is correct.

The adult male of C. leptospermi Maskell   was first described by Coles et al. (1988). They found that the secondinstar female nymphs of C. leptospermi   induced woody galls on the stems of Leptospermum laevigatum   in Australia (South Australia, New South Wales and Victoria). These galls varied in size, ranging from 8–25 mm long and 6–12 mm thick. Young galls are usually closed and firm, but when old or parasitized, a longitudinal slit appears on one side that allows dispersal of the crawlers and (presumably) copulation. The second-instar males settle either on the exterior of the parent gall or nearby in the axil of a twig or bud scale ( Coles et al. 1988).

Generic diagnosis based on adult male morphology of C. leptospermi   (described below) ( Fig. 26 View FIGURE 26 ) Body with abdomen attenuated and telescoping, narrowing gradually to style; body setae extremely few, almost all hs; loculate and simple pores absent. Head: dorsal mid-cranial ridge absent; postoccipital ridge well developed, with both anterior and posterior arms; genae with a few hs; ocular sclerite with very few concentric striations around simple eyes; antennae 8 segmented; flagellar segments with both hs and fs, latter rather short and stout; 1-4 capitate setae present on several antennal segments in addition to apical segment. Thorax: prosternal median ridge absent; prescutum without prescutal setae; scutal and scutellar setae present; postmesospiracular setae present; metasternum with few setae; metaprecoxal ridge present; hamulohalteres absent; alar lobe and alar setae absent; trochanter with campaniform sensilla in a line on each side; fs absent from tibia and tarsi; tarsi 1 segmented; claw digitules capitate; claws with a denticle. Abdomen: segments telescoping when not extended, but extremely elongate when extended; glandular pouches absent; abdominal segment IX with 2 pairs of short setae; style with hs and fs; style triangular and short, becoming sharply pointed posteriorly.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Asterolecaniidae

Loc

Callococcus Ferris 1918

Hodgson, Chris 2020
2020
Loc

S. newmanni

Froggatt 1921
1921
Loc

Callococcus

Ferris 1918
1918
Loc

Callococcus

Ferris 1918
1918
Loc

Callococcus

Ferris 1918
1918
Loc

Callococcus

Ferris 1918
1918
Loc

Callococcus

Ferris 1918
1918
Loc

S. leptospermi

Maskell 1894
1894
Loc

S. leptospermi

Maskell 1894
1894
Loc

C. leptospermi

Maskell 1894
1894
Loc

C. leptospermi

Maskell 1894
1894
Loc

S. acaciae

Maskell 1893
1893
Loc

S. acaciae

Maskell 1893
1893
Loc

Sphaerococcus

Maskell 1892
1892
Loc

Sphaerococcus

Maskell 1892
1892
Loc

S. casuarinae

Maskell 1892
1892
Loc

Sphaerococcus

Maskell 1892
1892