Pinnaspis hikosana Takagi, 1961

Suh, Soo-Jung, 2014, Updated list of Pinnaspis armored scales (Hemiptera: Diaspididae) of Korea, Insecta Mundi 2014 (347), pp. 1-9 : 4-6

Pinnaspis hikosana Takagi, 1961

( Figures 2A–F )

Pinnaspis hikosana Takagi, 1961: 73–74 . Type data: Japan, on Viburnum sp. , 10-v-1957.

Field Characters. Adult female cover narrowly to broadly oyster-shell shaped, dark brown; shed skins marginal, yellow brown to brown. Male cover smaller, felted, white, elongate, with tricarinate ( Kawai 1980).

Slide-mounted Characters. Adult female with 2 pairs of lobes, third lobes inconspicuous; paraphyses usually absent. Median lobes prominent, large in size, closely appressed together, a half circle shaped with 1–2 deeply lateral notches, the basal zygosis small, and slightly produced anteriorly into apex of pygidum; second lobes present and represented by a small, apically pointed process and lateral lobules by a small inconspicuous process. Gland spine formula 1–1–1, with about 16–18 gland spines near each body margin from segments 2 to 7. Macroducts of 2 sizes, larger size in marginal areas on segments 4 to 7, smaller size in submarginal and marginal areas from metathorax to segment 3. Perivulvar pores in 5 groups, 48–58 pores. Perispiracular pores usually with 3 loculi, anterior spiracles each with 5–6 pores, posterior spiracles with 1–2 pores. Anal opening located about middle of pygidium. Antennae each with 1 conspicuous seta. Body elongated fusiform with prepygidial segments each moderately convex laterally. Preanal scar present and represented by slender crescent shaped scars.

Affinities. This species is very similar to P. strachani from which it differs mainly by the basal zygosis of medial lobes which are small and slightly produced anteriorly into apex of pygidum and the second lobes present and represented by represented by a small, apically pointed process.

Material examined. Korea. Chungcheongnamdo ( CN): Gyeryosan, 7 adult females, on Styrax japonica (Styracaceae) twig, 26-iv-2013 (S.J. Suh).

Hosts. Anacardiaceae : Lannea coromandelica . Aquifoliaceae : Ilex crenata , Ilex integra . Caprifoliaceae : Viburnum dilatatum , Viburnum plicatum , Viburnum sieboldii , Viburnum sp. Cornaceae : Cornus controversa , Cornus macrophylla , Cornus sp. Clethraceae : Clethra barbinervis . Daphniphyllaceae : Daphniphyllum macropodum . Styracaceae : Styrax japonica . Theaceae : Camellia japonica , Cleyera japonica , Eurya japonica ( Kawai 1980; Ben-Dov et al. 2013).

Distribution. Japan and Korea * (Ben-Dov et al. 2013).

Remarks. This species has two generations per year, hibernates as an adult female and the first generation appears in mid-May to early June in Japan ( Kawai 1980).

Figures

Figure 2. Pinnaspis hikosana Takagi. A) Habitus. B) Female. C) Antennae. D) Anterior and posterior spiracles. E) Median lobes and preanal scars. F) Perivulvar pores.