Icerya nuda Green, 1930

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 : 89-90

Icerya nuda Green

Icerya (Crypticerya) nuda Green, 1930: 282 .

Crypticerya nuda (Green) ; Rao (1951b: 154).

Icerya nuda Green ; Unruh & Gullan (2008: 41) .

Diagnosis (based on poorly mounted lectotype, Green, 1930 and Rao, 1951b). Adult female oval, broadest at posterior end, 13 mm long, 11 mm wide. Antennae 11 segmented. Legs as for genus except relatively small and thin. Short hair-like setae on dorsal surface scattered, sparse; probably present in clusters at posterior mar-

gin. Open-centre pores, each with 6–10 outer loculi, present on dorsum and venter. Simple multilocular pores with elongate centre [possibly bilocular] and 4–6 outer loculi. Marsupial band and ovisac band absent. Vulva as for genus. Cicatrices not visible. Abdominal spiracles not visible. Anal tube as for genus; anal opening surrounded by a fair number of setae.

First-instar nymph with 3 pairs of long hair-like setae at abdominal apex. Abdominal spiracles in 3 pairs.

Type data. INDONESIA: Sumatra, ex Gigantochloa aspera (E. Jacobson) .

Type material. Lectotype here designated: ad ♀, “ Icerya /nuda/Green/ on Gigantochloa /aspera/ Sumatra / Coll. E Jacobson. 10” ( BMNH) . Paralectotypes: 10 embryos (one slide), 8 embryos (one slide), 10 embryos (one slide), “ Icerya /nuda/ Green /(embryonic larvae)/ on Gigantochloa /aspera/ Sumatra /coll. E. Jacobson 10” ( BMNH); 10 embryos (one slide), same data as above, except with, “let stend/ Green det” written in red on top of slide ( USNM) .

Taxonomic notes. The poor condition of the lectotype and the meagre original description make it difficult to provide an adequate comparison of this species to any other iceryine. However we believe that this species belongs to the Iceryini because the first-instar nymphs have 3 pairs of abdominal spiracles.

Green's original description of this species was based on a single adult female and embryonic first-instar nymphs extracted from the body of the female. The slide-mounted lectotype is an old, sclerotized individual and the slide-mount is in terrible condition. It is very difficult to discern cuticular features, especially pore structure and distribution. Green (1930) believed this species to be ovoviviparous because he extracted embryos from the body of the adult female. This is unusual for iceryine adult females, which either lay eggs into a marsupium or deposit the eggs beneath the body or in an ovisac. Thus iceryine eggs develop into embryos outside of the body rather than inside.

The original description does not give a specific locality, but states that the specimen was collected by Edward Jacobson in Sumatra between the years 1923 to 1927. The host plant is a bamboo species ( Poaceae ).