Macroporicoccus ulmi (Tang & Hao) Nan & Deng & Wu, 2013

Nan, Nan, Deng, Jun & Wu, San’An, 2013, A new felt scale genus Macroporicoccus gen. n. (Hemiptera: Coccoidea: Eriococcidae) from China, with a redescription of Macroporicoccus ulmi (Tang & Hao) comb. n., Zootaxa 3722 (2), pp. 170-182 : 175-176

publication ID	https://doi.org/ 10.11646/zootaxa.3722.2.3
publication LSID	lsid:zoobank.org:pub:D7FF6D6E-6820-4333-9D40-F018F1925234
DOI	https://doi.org/10.5281/zenodo.5268027
persistent identifier	https://treatment.plazi.org/id/133A87A0-814F-CF5F-FF56-FF36029AF81C
treatment provided by	Felipe
scientific name	Macroporicoccus ulmi (Tang & Hao)
status	comb. nov.

Treatment

Macroporicoccus ulmi (Tang & Hao) comb. n.

( Figs 3–22 View FIGURE 3 View FIGURE 4 View FIGURES 5–12 View FIGURES 13–20 View FIGURES 21–22 )

Cryptococcus ulmi Tang & Hao, 1995: 429 ; Xie, 1998: 101; Tao, 1999: 31; Miller & Gimpel, 2000: 90; Wu, 2000: 251, 256; Kozár, 2009: 96.

Material examined. 12 ad ♀♀, China, Shanxi Province, Taigu County, campus of Shanxi Agricultural University in crevices in the trunks of Ulmus pumila , 10 December 1997, Coll. San-an Wu (the measurements and illustration are based on this slide) ; 4 ad ♀♀, China, Tianjin City on U. pumila , 15 June 1999, Coll. San-an Wu ; 7 ad ♀♀, China, Beijing City, Songshan Mountain in the crevices of trunks of U. japonica , 29 May 2012, Coll. Nan Nan.

Redescription of adult female. Body in life sub-globular, orange-red, covered by white waxy ovisac. Body on slide circular or ovate, 0.90–1.45 mm long and 0.70–1.33 mm wide. Antennae ( Fig. 7 View FIGURES 5–12 ) reduced, 6-segmented, length of each segment (µm): I 14–18, II 8–11, III 6–7, IV 4–6, V 5–6, VI 12–16; segment II with one campaniform sensillum, segment IV and V each bearing a fleshy seta, segment VI with 3 fleshy and 4 long flagellate setae and a pair of coeloconic sensilla at apex. Mouthparts developed, clypeolabral shield ( Fig. 8 View FIGURES 5–12 ) with 2 small setae in middle of surface; labium ( Fig. 9 View FIGURES 5–12 ) 3-segmented, 56–62 µm long, with 5 pairs of short setae on apical segment. Thoracic spiracles each 34–40 µm long and atrium 19–21 µm wide, each with a group of quinquelocular (rarely trilocular) ( Fig. 12 View FIGURES 5–12 ) pores near opening, with 6–21 near each anterior spiracle ( Fig. 10 View FIGURES 5–12 ) and 6–23 near each posterior spiracle ( Fig. 11 View FIGURES 5–12 ). Legs ( Figs 13–15 View FIGURES 13–20 ) much reduced, only distal part of tarsus and complete claw visible; each claw with a denticle near apex; fore and middle claw 9–10 µm long, hind claw stouter, 6–8 µm long; each leg with one pair of tarsal digitules and one pair of claw digitules, all slightly knobbed, tarsal digitule longer than claw, claw digitule nearly equal to length of claw; each leg with several setae around base; hind legs each located on a 51–70 µm long and 42–50 µm wide pore plate ( Fig. 16 View FIGURES 13–20 ). Anal ring ( Fig. 17 View FIGURES 13–20 ) circular to oval, 26–28 µm long and 18–26 µm wide, with 6 short setae, each 17–20 µm long, and without pores. Anal lobes absent, each represented by a long flagellate seta, 48–70 µm long at posterior end of body. Vulva ( Fig. 18 View FIGURES 13–20 ) distinct, located on ventromedial area between abdominal segments VI and VII.

Dorsum ( Fig. 5 View FIGURES 5–12 ). Setae absent. Macrotubular ducts ( Fig. 19 View FIGURES 13–20 ) with a cup-shaped invagination, each 20–26 µm long and about 3 µm wide, with an inner ductule 17–19 µm long; numerous, distributed over all surface. Microtubular ducts each with an outer ductule about 2 µm long and a dermal orifice about 2 µm wide; sparse on dorsum. Macrodisc pores ( Figs 20 View FIGURES 13–20 , 21 View FIGURES 21–22 ) with rim slightly protruding, each about 10 µm in diameter, forming transverse rows across dorsum. Quinquelocular disc pores, each about 5 µm in diameter; few on margin.

Venter ( Fig. 6 View FIGURES 5–12 ). Setae ( Fig. 22 View FIGURES 21–22 ) spine- or hair-like, 4–16 µm long, sparsely distributed on venter but with a small group around each leg. Macroducts, microducts and macrodisc pores similar to those on dorsum, present on marginal and submarginal areas. Quinquelocular pores also similar to those on dorsum, but with a group near each spiracle and mouthparts; also distributed on abdominal venter and in marginal and submarginal areas, sometimes with a few near spiracles replaced by trilocular pores.

Host plants. Ulmus japonica , U. pumila , U. pumila ‘Tenue’ ( Ulmaceae ), Syringa oblata (Oleaceae) .

Distribution. China (Beijing, Shanxi, Tianjin).