Pinnaspis uniloba (Kuwana), 1909

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

Pinnaspis uniloba (Kuwana), 1909 ( Figures 3A–E )

Mytilaspis (Lepidosaphes) uniloba Kuwana, 1909: 156 . Type data: Japan, on Osmanthus sp. ,?- iii-1907.

Field Characters. Adult female cover elongate oyster-shell shaped, dark brown ( Takagi 1970). Male not observed during the survey.

Slide-mounted Characters. Adult female with one lobe, the second lobes absent. Median lobes fused throughout their entire length, thus forming a single median lobe with 2–3 lateral notches, the basis zygosis prominent, small and slightly produced anteriorly into apex of pygidium, the basal scleroses heavily sclerotized patches. Gland spine formula 1–1–1, with about 16–18 gland spines near each body margin from segments 3 to 7. Macroducts of 2 sizes, larger size in marginal areas on segments 4 to 7, smaller size in marginal areas from metathorax to segment 3 and in submarginal area of segment 4. Perivulvar pores in 5 groups, 42–60 pores. Perispiracular pores usually with 3 loculi, anterior spiracles each with 2–4 pores, posterior spiracles nothing or 1 pore. Anal opening located about middle of pygidium. Antennae each with 1 conspicuous seta. Body elongated fusiform, almost parallel on the lateral margins through the thorax and prepygidial abdominal segments, with prepygidial segments each slightly convex laterally, with pygidium triangular. Preanal and poster lateral to the anus scars present and represented by a slender sclerotized bar.

Affinities. This species is distinct among species of Pinnaspis that occur in Korea by having a wholly fused median lobe.

Material examined. Korea. Jeollanamdo ( JN): Wando arboretum, 13 adult females, on Cleyera japonica (Theaceae) leaf, 10-v-2007 (S.J. Suh).

Hosts. Apocynaceae : Alyxia olivaeformis , Alyxia sp. Fabaceae : Bauhinia racemosa . Magnoliaceae : Michelia sp. Oleaceae : Osmanthus fortunei , Osmanthus fragrans , Osmanthus sp. Rutaceae : Aegle marmelos . Theaceae : Adinandra milletti , Adinandra ryukyuensis , Adinandra sp. , Camellia japonica , Cleyera japonica , Cleyera ochnacea , Eurya japonica , Thea japonica ( Kawai 1980; Ben-Dov et al. 2013).

Distribution. Hawaiian Islands, India, Taiwan, China, Japan and Korea * (Ben-Dov et al. 2013).

Remarks. This species has one generation per year, hibernates in the egg stage and the first generation appears in May in Japan. It lacks males and is parthenogenetic ( Kawai 1980).

Figures

Figure 3.Three species of Pinnaspis. A) P. uniloba (Kuwana), female. B) P. uniloba (Kuwana), antennae. C) P. uniloba (Kuwana), anterior and posterior spiracles. D) P. uniloba (Kuwana), median lobes and preanal scars. E) P. uniloba (Kuwana), perivulvar pores. F) Slide-mounted specimens.