Valid Names Results

Macroporicoccus ulmi (Tang & Hao, 1995) (Eriococcidae: Macroporicoccus)

Nomenclatural History

• Cryptococcus ulmi Tang & Hao 1995: 429. Type data: CHINA: Shanxi, Dingxiang County, on Ulmus pumila, 21/05/1990. Holotype, female, by original designation Type depository: Shanxi: Entomological Institute, Shanxi Agricultural University, Taigu, Shanxi, China; accepted valid name Illustr.
• Macroporicoccus ulmi (Tang & Hao, 1995); Nan, Deng & Wu 2013: 175-179. change of combination

Common Names

Ecological Associates

Hosts:

Families: 2 | Genera: 2

Associates:

Families: 1 | Genera: 1

Geographic Distribution

Keys

• KozarKaKo2013: pp.596 ( Adult (F) ) [Key to species of Cryptococcus] Key as: Cryptococcus ulmi

Remarks

• Systematics: Slide-mounted adult female with: 3 pairs of legs; antennae 6-segmented; anal ring without pores; 6 setae on anal ring (Tang & Hao, 1995). The Chinese species C. ulmi, is only distantly related to other species of Cryptococcus. (Gwiazdowski et al., 2006) Gwiazdowski et al. found that C. ulmi had close relationships with representatives of Beesoniidae and Stictococcidae, and the eriococcid taxa Cylindrococcus spp., Eriococcus buxi (Boyer de Fonscolombe) and E. williamsi Danzig, all of which formed part of Cook and Gullan’s (2004) "BSE" clade. In a further study by Nan, et al. (2013) it was noted that C. ulmi has a unique type of large simple pore present on the dorsum and ventral margin. Considering the differences between the morphology of the adult females of the other Cryptococcus species and C. ulmi and, bearing in mind the results of the above-mentioned molecular studies, Nan, et al. determined that C. ulmi should be removed from Cryptococcus, and a new genus, Macroporicoccus erected.
• Structure: Adult female body is nearly circular and white (Tang & Hao, 1995). 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 reduced, 6-segmented. (Nan et al., 2013)
• General Remarks: Detailed description and illustration by Tang & Hao (1995). Wu (2000b) illustrates the crawler, second instar male and female, prepupa, pupa and adult male. Scanning electron micrographs in Nan, et al. (2013).

Illustrations

Citations