Icerya morrisoni Rao, 1951

Unruh, Corinne M. & Gullan, Penny J., 2008, Identification guide to species in the scale insect tribe Iceryini (Coccoidea: Monophlebidae), Zootaxa 1803 (1), pp. 1-106 : 87-88

Icerya morrisoni Rao

Icerya morrisoni Rao, 1951a: 64 .

Unmounted material. Appearance of adult female in life unknown.

Slide-mounted material. Adult female 3.5–6.0 mm long, 2.5–4.0mm wide (holotype 3.5 mm long, 2.5 mm wide). Antennae 11 segmented, all segments with setae, apical segment with most setae. Eyes, mouthparts and legs as for tribe. Thoracic spiracles as for genus. Hair-like setae distributed as for genus, longest in marginal clusters. Flagellate setae distributed as for genus. Simple multilocular pores each with bilocular or trilocular centre and 6–8 outer loculi, covering dorsal surface, each pore 8–9 µm in diameter on head and thorax, each pore 7–8 µm in diameter on abdomen. Simple multilocular pores, each 8–10 µm in diameter, with hexalocular centre and 4–6 outer loculi, forming marginal clusters and associated with long, hair-like setae. Simple multilocular pores each 8–9 µm in diameter with trilocular or quadrilocular centre and 8–10 outer loculi, scattered on ventromedial head and thorax. Ovisac band 2–4 pores wide, made of simple multilocular pores, each 8–9 µm in diameter, with quadrilocular or quinquelocular centre and 7–8 outer loculi. Simple multilocular pores, each 6–7 µm in diameter, with trilocular centre and 3 outer loculi, closely abutting inner edge of ovisac band. Simple multilocular pores, each 6–7 µm in diameter, with trilocular centre (appearing reniform) and 4 outer loculi, scattered across ventromedial abdomen. Vulva as for genus. Cicatrix round to oval. Abdominal spiracles in 3 pairs. Anal tube and anal opening as for genus.

Type data. PHILIPPINES: Manila, ex coconut [= Cocos nucifera ], intercepted at the Plant Quarantine Station in Seattle, Washington, U.S.A. (M.J. Forsell); CHINA: Loh Kong Tsa, ex Litsea glutinosa , intercepted at the Plant Quarantine Station in Seattle, Washington, U.S.A. (C.W. Howard).

Type material. Holotype: ad ♀, “ Icerya tangalla / aegyptiaca Gn /(Dougl.)/On Coconut./From. Manila. P.I./At – Seattle./ M.J. Forsell, Collr/ Jan. 28, 1925 /Seattle #174” ( USNM) . Paratype: ad ♀, “ Icerya /aegyptiaca / Dougl./tangalla fr.?/On Litsea glutinosa /Loh Kong Tsa, China / C.W. Howard, Coll./Dec. 7, 21 #212” ( USNM) .

Other material examined. ad ♀, “ Icerya /aegyptiaca/(Dougl.)/ On. Coconut. /From. Manila, P.I./At – Seattle./ M.J. Forsell, Collr./ Jan. 28, 1925./Seattle # 174.” ( USNM) .

Taxonomic notes. Refer to I. pulchra group for a discussion of similar species.

Rao originally identified the type material of this species as Icerya tangalla . Only after examining material of I. tangalla while visiting BMNH, did he discover that it should be considered a new species. Ben-Dov (2005: 203) only listed type data for the holotype and not the paratype. Complete type data are listed above; the holotype is from the Philippines and the paratype is from China. Another slide of an adult female with the same collection data as the holotype is present in the USNM collection and listed under other material examined. This slide, however, is not labelled I. tangalla and Rao named only a single paratype for this species. Therefore, we cannot consider it a paratype. Presumably, Rao overlooked this slide when he examined the USNM material.