Ovaticoccus villanuevorum Miller and Stocks, 2022

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, Zootaxa 5221 (1), pp. 1-213 : 183

Ovaticoccus villanuevorum Miller and Stocks sp. n.

Type material: Adult female holotype (single specimen on slide) with right label “Ovaticocccus / n. sp. / 10 mi. S. Texcoco, Mexico, / - 12-VII-1967 / ex Opuntia sp. / DRMiller & J. Villanueva / UNAM / ENTOMOLOGY / U. C. DAVIs CALIf. / 819;” left label “ Ovaticoccus / villanuevorum / Miller / & / Stocks / Holotype;” label on back “ Ovaticoccus / villanuevorum / Miller & Stocks / HOLOTYPE / UNAM / Texcoco.” Deposited in UNAM. Paratypes: MEXICO: Taken in quarantine at El Paso, II-19-1966, on “cacti leaf,” from Berlese funnel, G. Dunn and L.D. Weast (1 ad. ♀ paratype on 1 slide) USNM; State of Queretaro:, taken in quarantine at Laredo, Texas from Cadereyta, VI-2-1949, on “cactus,” T.P. Chapman (1 ad. ♀ paratype on 1 slide) USNM; State of Mexico, 10 mi. S. Texcoco, VII-12-1967, on Opuntia sp. , J. Villanueva B. and D.R. Miller (1 ad. ♀ holotype, 3 ad. ♀♀ paratypes, on 4 slides) NHM (1 slide), UCD (1 slide), UNAM (1 slide), USNM (1 slide); State of Puebla: 7 mi. NE Zapotitlan, III-1-1972, on Opuntia sp. , D.R. Miller and F.D. Parker (7 ad. ♀♀ paratypes, on 3 slides) CDFA (1 slide), FSCA (1 slide), USNM (1 slide) .

Etymology: This species is named in honor of Juan Villanueva Barredos and his son Juan Antonio Villanueva who both provided enormous support and encouragement while the first author was collecting in their country ( Mexico) over more than 3 decades. Special thanks to them!

Adult female ( Fig. 95 )

Description: Holotype, slide mounted 3.9 mm long, 2.0 mm wide (paratypes 2.5–3.5 mm long, 1.7–1.8 mm wide). Body elongate oval; without protruding anal lobes. Anal-lobe area dorsally each with 2–4 flagellate setae, numerous cruciform pores and macrotubular ducts; ventrally each with 2–4 flagellate setae including elongate anallobe seta, numerous cruciform pores, macrotubular ducts, microtubular ducts, and multilocular pores.

Dorsum with flagellate setae noticeably shorter than those on venter; each abdominal segment with 2 or 3 setae medially, mediolaterally, and laterally, slightly longer and more robust than remaining setae; setae on head longer than other setae; longer setae normally bent, sometimes apically capitate. Enlarged setae absent; segment IV with 23 flagellate setae (paratypes with 23–27 flagellate setae). Macrotubular ducts abundant over entire surface, varying in size from large and elongate, to small and short. Microtubular ducts approximately 6 μm long, area farthest from dermal orifice sclerotized and divided into 2 parts, apical portion rounded, ½ length of remaining sclerotized portion, total sclerotized area same length as unsclerotized area, dermal orifice unsclerotized, without protruding tube. Microtubular ducts in small numbers along body margin, nearly absent on thorax. Multilocular pores on posterior and anterior margins of each abdominal segment, least abundant on posterior abdominal segments and on head, of 2 kinds: 5-locular pores most abundant, 3-locular pores rare. Cruciform pores unusually abundant on medial portion of each abdominal segment, most abundant on posterior abdominal segments. Microtrichia absent.

Anal ring unusual for eriococcid, recessed in dermal pocket, ring partially sclerotized, circular, non-cellular, without setae. Anal tube sclerotized, anal opening sclerotized, without anal flap.

Venter with longest flagellate seta on segment II 73 μm long, (paratypes 57–75 μm), on segment VII 53 μm long (paratypes 43–50 μm); anal-lobe seta 112 μm long (paratypes 95–112 μm); setae apically acute. Enlarged setae absent. Macrotubular ducts abundant over entire surface, most numerous on abdomen, of same variable sizes as on dorsum. Microtubular ducts uncommon, most abundant on lateral areas of posterior abdominal segments, rare on lateral areas of head, thorax, and posterior abdominal segments, of same type as on dorsum. Multilocular pores over entire surface, most abundant on posterior abdominal segments, least abundant on head, of 4 kinds: 7-locular pores, 6-locular pores, and 3-locular pores rare; 5-loculars abundant. Cruciform pores in small clusters between antennae, with 1 or 2 pores on thorax, and lateral clusters on segments III to VIII. Legs with hind coxae dorsally with 105 and 130 pores, ventrally with 40 and 50 pores (paratypes dorsally with 44–158, ventrally with 13–62 pores); each femur with 3 setae, all distal; each tibia with 4 setae, without middle seta; hind tibia longer than tarsus, tibia/tarsus 1.3 and 1.4 (paratypes 1.2–1.4). Antennae each 7-segmented, about 360 μm long (paratypes 260–640 μm). Frontal lobes and preantennal pores absent. Microtrichia from mesothorax to segment VII, also on coxae of middle legs.

Notes: This description is based on 13 specimens from three localities. Ovaticoccus villanuevorum is unique in having the tibia longer than the tarsus, and the anal opening in a recessed pocket.

Figures

FIGURE 95. Ovaticoccus villanuevorum Miller and Stocks sp. n., adult female, 10 miles S. Texcoco, State of Mexico, Mexico, July 12, 1967, on Opuntia sp., J. Villanueva B. and D.R. Miller. D=5-locular pore; E=3-locular pore; F=microtubular duct; G=macrotubular duct; H=cruciform pore; I=anal ring; J=antenna; K=dorsal surface of coxa; L=claw; S=6-locular pore.