Ovaticoccus peruvianus Miller & Stocks 2022, comb. n.
Creators: name: Miller, Douglass R.
name: Stocks, Ian C.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Eriococcidae
Ovaticoccus
Ovaticoccus peruvianus

description: Ovaticoccus peruvianus (Granara de Willink & Díaz) comb. n.
Oregmopyga peruviana Granara de Willink and Díaz 2007: 5–10.
Type specimens: We have not seen type material of Ov. peruvianus, but have seen a series of specimens from Peru that closely resembles the original description. Some of the collections mentioned as part of the Ov. parvispinus complex of species are tentatively placed in Ov. peruvianus awaiting further study.
Material examined: MEXICO: San Luis Potosi: Tomazunchale (in quarantine at San Diego, California), VII-19-1962, on Beaucarnea sp., A.D. Atnip (2 ad. ♀♀, on 2 slides) CDFA, UCD; Tamaulipas, 10 mi. E. Ciudad Monte, II-25-1972, on leafless shrub, D.R. Miller and F.D. Parker (3 ad. ♀♀, on 3 slides) USNM. PERU: Piura: Chato, near Catacon, IX-4-1910, on “bichayo” native shrub (= Beautempsia avicennifolia?), C.H.T. Townsend (3 ad. ♀♀, on 1 slide) USNM. UNITED STATES: Oklahoma: Caddo Co: specific locality unknown, on grass, R. Beshear (1 ad. ♀, on 1 slide) USNM.
Etymology: The species epithet “ peruviana ” is named for the country where it was first collected.
The justification for treating Oregmopyga as a junior synonym of Ovaticoccus, leading to this new combination, is provided in the “Notes” section that follows the generic description above. The adult female, second-instar male and female, and first-instar nymph of this species were described in detail by Granara de Willink and Díaz (2007) and information from that paper is not repeated here. We include a new description of the adult female from localities and hosts other than in the original description and include the species in keys to the various instars.
Adult female (Fig. 76)
Description: Slide-mounted specimens 1.9–2.3 mm long, 1.2–1.4 mm wide. Body broadly oval, with slightly protruding anal lobes. Anal-lobe areas dorsally each with 2 or 3 flagellate setae, 0–2 microtubular ducts, and 3–10 5-locular pores; ventrally each with 3 or 4 flagellate setae including suranal seta and anal-lobe seta, 4–7 5-locular pores, and 0 or 1 macrotubular duct.
Dorsum with flagellate setae often curved, with rounded apex, scattered over entire surface, noticeably shorter than those on venter. Enlarged setae uncommon or absent, with 0–4 on body margin of 1 size; largest seta 11–12 μm long. Enlarged setae straight or curved, conical, lateral margins slightly curved, apex narrowly rounded, with moderately thick setal ring; not in dermal pockets; segment IV with 11–20 setae including 0–2 enlarged setae and 11–18 flagellate setae; segment IV with combined total of 0–2 enlarged setae dorsally and ventrally. Macrotubular ducts abundant over entire surface, usually absent from segment VIII. Microtubular ducts 5–8 μm long, with area farthest from dermal orifice sclerotized and divided into 2 parts, apical portion rounded, about ¼ length of remaining sclerotized portion, total sclerotized area same length as, or 1 or 2 times longer than, unslcerotized area; dermal orifice sclerotized, with simple protruding tube. Microtubular ducts scattered over entire surface, least abundant on head. Multilocular pores of 3 kinds: 3- and 4-locular pores rare; 5-locular pores abundant, scattered over entire surface, least abundant on head. Cruciform pores over surface from mesothorax to segment V, VI or VII. Microtrichia on segments VII and VIII.
Anal ring ventral, apical, or dorsal, semicircular, incomplete anteriorly and posteriorly, sometimes connected anteriorly or posteriorly with slightly sclerotized bar, cellular, with single ring of pores in sclerotized areas, with 3 setae on each side of ring, each longer than diameter of ring, with or without additional pair of setae near ring, anal tube unsclerotized, anal orifice sclerotized, with anal flap.
Venter with longest flagellate seta on segment II 23–30 μm long, on segment VII 28–33 μm long; anal-lobe seta 160–188 μm long; medial setae apically rounded. Enlarged setae absent. Macrotubular ducts scattered over surface except absent from segment VIII. Microtubular ducts scattered over entire surface, least abundant in medial areas. Multilocular pores of 3 kinds: 3-locular pores and 7-locular pores uncommon, 5-locular pores abundant over entire surface. Cruciform pores uncommon or absent medially, with fewer than 10 between legs, in lateral areas of thorax and abdominal segments, abundance variable among specimens. Legs with hind coxae dorsally with 4–35 pores, ventrally with 0–2 pores: each femur with 4 or 5 setae, including 1 or 2 proximal setae and 3 distal setae; each tibia with 4 setae, without middle seta; tibia/tarsus 0.8. Antennae each 7-segmented, 182–188 μm long. Frontal lobes absent. Preantennal pore present. Microtrichia from pro- or mesothorax to segment VIII, on hind 2 pairs of coxae.
Notes: The description is based on six specimens from three localities. The adult female of Ov. peruvianus is most similar to the adult female of Ov. parvispinus in having: proximal setae on the femur; slightly protruding anal lobes; numerous dorsal and ventral multilocular pores; and cruciform pores on both surfaces. They differ as follows (character states in brackets are those of Ov. peruvianus): cruciform pores absent or uncommon in ventromedial areas between legs <10, often restricted to marginal areas (cruciform pores common between legs>10, present over surface); dorsal enlarged setae uncommon or absent, when present, found on body margin (dorsal enlarged setae abundant over entire surface).
description: Published as part of 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, pp. 1-213 in Zootaxa 5221 (1) on pages 149-151, DOI: 10.11646/zootaxa.5221.1.1, http://zenodo.org/record/7441371