Ovaticoccus tuttlei 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 : 174-176

Ovaticoccus tuttlei Miller and Stocks sp. n.

Type material: Adult female holotype mounted singly on slide, with right label “ Ovaticoccus / tuttlei / Portal, Cochise Co., / Arizona - 2-IX-1967 / ex Hilaria mutica / DMTuttle / ENTOMOLOGY / U.C., Davis, Calif.” Left label “ Ovaticoccus / tuttlei Miller / and Stocks / Holotype.” The holotype is deposited in UCD. Paratypes: Arizona: Cochise Co. : Portal , IX-2-1967, on H. mutica, D.M. Tuttle (1 ad. ♀ holotype on 1 slide) UCD; Portal , IX-2-1967, on Muhlenbergia porteri, D.M. Tuttle (2 ad. ♀♀ paratypes on 2 slides) UCD (1 slide), USNM (1 slide); Portal , VIII-23- 1968, on Aristida adscensionis, D.M. Tuttle (2 ad. ♀ ♀ paratypes on 2 slides) BM (1 slide), CDFA (1 slide) .

Etymology: This species is named in honor of the late Donald M. Tuttle, who was a professor in the Entomology Department at the University of Arizona, USA. He was stationed at the experiment station in Yuma, Arizona, and was a well-known acarologist. He often collected interesting scale insects, particularly mealybugs and eriococcids, while studying spider mites.

Adult female ( Fig. 90 )

Description: Holotype, slide-mounted, 1.6 mm long, 0.5 mm wide (paratypes 1.4–1.6 mm long, 0.5–0.6 mm wide). Body elongate oval, with slightly protruding anal lobes.Anal-lobe areas dorsally each with 2 slightly enlarged flagellate setae (paratypes 2 or 3), 0 and 1 microtubular duct (paratypes 0 or 1), and 7 7-locular pores or 9-locular pores (paratypes 5–9 5-locular pores, 7-locular pores, or 9-locular pores); ventrally each with 2 flagellate setae including anal-lobe seta, and 7 or 8 5-locular pores, 7-locular pores, or 9-locular pores (paratypes 6 or 7 7-locular pores or 9-locular pores), without macrotubular ducts (paratypes 0 or 1).

Dorsum with flagellate setae scattered over entire surface, noticeably shorter than those on venter, slightly curved. Enlarged setae absent (paratypes with 0–3 slightly enlarged setae on body margin, same shape as other dorsal setae). Macrotubular ducts scattered over entire surface, least abundant on anterior thorax and head, about 20 μm long (paratypes 21–29 μm). Microtubular ducts each 5 μm long (paratypes 4–5 μm), area farthest from dermal orifice sclerotized and divided into 2 parts, apical portion rounded, slightly smaller than remaining sclerotized portion, dermal orifice sclerotized, often with protruding duct. Microtubular ducts most abundant near body margin, absent medially. Multilocular pores scattered over entire surface, of 3 or 4 kinds: 9-locular pores, 7-locular pores, 6-locular pores, and 5-locular pores; 7-locular pores most abundant. Cruciform pores in lateral clusters from mesothorax to segment VII, least abundant on thorax (paratypes sometimes with pores in mediolateral areas and medially on segments VI and VII). Microtrichia on segment VII .

Anal ring ventral, nearly absent, anterior portion weakly sclerotized near anterior pair of setae, semicircular, incomplete, usually unsclerotized posteriorly, sometimes with small area of sclerotization near 1 posterior seta, essentially non-cellular, with 1 pore near anterior seta (paratypes without cells) with 3 setae on each side of ring (paratypes sometimes with 2 setae on each side), posterior setae slightly enlarged, setae each shorter than greatest diameter of ring; anal tube weakly sclerotized, anal opening tube weakly sclerotized, without anal flap.

Venter with longest flagellate seta on segment II 30 μm long (paratypes 25–32 μm), on segment VII 32 μm long (paratypes 28–32 μm); longest anal-lobe seta 90 μm long (paratypes 82–95 μm). Enlarged setae absent. Macrotubular ducts scattered over entire surface, least abundant anteriorly, some macrotubular ducts in middle areas of segments slightly smaller. Microtubular ducts near body margin, absent medially. Multilocular pores of same kinds and relative numbers as on dorsum, most abundant near body margin, rare or absent medially on head and anterior thorax, forming distinct rows on abdomen. Cruciform pores on marginal areas of segments II to VII (paratypes on mesothorax, metathorax, or segment II to VI or VII). Legs with hind coxae dorsally with 14 and 17 pores (paratypes 9–18 pores), ventrally without pores (paratypes with 0–2 pores); each femur with 5 setae including 2 proximally and 3 distally; each tibia with 4 setae, without middle seta; hind tibia/ tarsus 0.8 (paratypes 0.7–0.8). Antennae each 7-segmented, each 182 and 175 μm long (paratypes 162– 187μm). Frontal lobes absent. Preantennal pore present. Microtrichia on prothorax to segment VIII (paratypes with microtrichia from mesothorax or metathorax to segment VIII), and on ventral surface of each coxa .

Notes: The description is based on five specimens from one locality. The adult female of Ov. tuttlei is most similar to the adult female of Ov. haigi in having a very reduced anal ring, dorsal and ventral cruciform pores, and dorsal multilocular pores. These species differ as follows (character states in brackets are those of Ov. tuttlei ): with 6-segmented antennae (7-segmented); with translucent pores present on derm anterior to hind coxae (absent); each femur with four setae including one proximal seta (five setae including two proximal setae); multilocular pores predominantly with five loculi (seven loculi).

Figures

FIGURE 90. Ovaticoccus tuttlei sp. n., adult female, Portal, Cochise Co., Arizona, USA, September 2, 1967, on Hilaria mutica, D.M. Tuttle. B=slightly enlarged seta; C=7-locular pore; D=5-locular pore; F=microtubular duct; G=macrotubular duct; H=cruciform pore; I=anal ring; J=antenna; K=dorsal surface of coxa; L=claw; M=preantennal pore; N=flagellate seta; T=pore with>7 loculi.