Valid Names Results

Dzumacoccus baylaci Hodgson, Germain & Matile-Ferrero, 2018 (Eriococcidae: Dzumacoccus)

Nomenclatural History

• Dzumacoccus baylaci Hodgson, Germain & Matile-Ferrero 2018: 377. Type data: NEW CALEDONIA: Mount Dzumac, piste Ouiné, 700 m alt., on Gymnostoma poissonianum (Casuarinaceae), 11/18/1990, by Michel Baylac. Holotype, female, by original designation Type depository: Paris: Museum National d'Histoire naturelle, France; accepted valid name Notes: Paratypes: same data as for holotype (MNHN 14917-2): 1 slide with 1 first-instar nymph. Also: same data as holotype (MNHN 14918): 1 slide with 3 first-instar nymphs. Illustr.

Common Names

Ecological Associates

Hosts:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• HodgsoGeMa2018: pp.384 ( Adult (F) ) [Eriococcidae from New Caledonia]

Remarks

• Systematics: The structure of the marginal spinose setae in this genus appears to be unique within the Eriococcidae. In addition, the presence of the odd sclerotizations on the venter of the thorax are also unusual. Another eriococcid species also recently described from New Caledonia, Choneochiton casuarinae Hodgson, Mille & Cazères (Hodgson et al. 2014), also has odd sclerotizations in this position, although otherwise it is very different. Another feature of interest is the deep sclerotized “pores” on the dorsal surface of each metacoxa. Other features considered to be of interest are: (i) the complete absence of macrotubular ducts from both dorsal and ventral surfaces; (ii) the absence of spinose setae from the dorsum; (iii) the presence of very long, narrow ductules in each dorsal microtubular duct; (iv) the structure of the anal lobes, which have been modified into structures resembling anal plates; (v) the absence of cruciform pores on the venter; (vi) dissimilar digitules on both tarsus and claw, and (vii) possible fusion of the apical antennal segments. The structure of the anal plates is somewhat similar to that in Montanococcus sp. but D. baylaci is otherwise very different. Like the adult, the first-instar nymphs of Dzumacoccus baylaci can be immediately identified by the unusual structure of the marginal spines.(Hodgson, et al., 2018)
• Structure: Adult female, preserved in alcohol, entirely covered by a tapered thick waxy coat, black-brown to greenish black, trilobite-like. Slide-mounted specimen: body elongate oval, broadest across abdomen, with a slight indentation in margin medially on head. Anal cleft and stigmatic clefts absent. Entire body margin with a row of strongly sclerotized, triangular spines that all point posteriorly. Length 1.1 mm, width 0.85 mm. (Hodgson, et al., 2018) First-instar nymph: Slide-mounted specimen: body elongate oval, broadest across thorax. Entire body margin with a row of strong, sclerotized lobe-like extensions. Length 500 μm, width 285 μm. (Hodgson, et al., 2018)
• General Remarks: Detailed description, illustrations and photographs in Hodgson, et al., 2018.

Illustrations

Citations