Pseudaulacaspis kiushiuensis (Kuwana)

Suh, Soo-Jung, 2015, New records of armored scale insects, Pseudaulacaspis MacGillivray (Hemiptera: Diaspididae), in Korea, Insecta Mundi 2015 (403), pp. 1-8 : 2

Pseudaulacaspis kiushiuensis (Kuwana)

( Figures 1–6 )

Chionaspis kinshinensis Kuwana, 1909: 155 . Type data: Japan, on Quercus sp. [Justified emendation; this spelling was corrected by Kuwana (1928) to kiushiuensis ].

Description. Field Characters. Adult female cover white, oyster-shell shaped; shed skins marginal, yellow to brown. Male (not examined by author) cover smaller, felted, white, elongate, with slight median carina; shed skin yellowish ( Kuwana 1917).

Slide-mounted Characters. Adult female with 2 or 3 pairs of well-developed lobes, third lobes sometimes with lateral lobule represented by series of low points; paraphyses attached to medial and lateral margins of median lobules of second lobe. Median lobes prominent with medial yoke, strongly divergent, with 6–8 medial notches, 5–7 lateral notches; second lobes with 2 lobules smaller than median lobes, rounded, much shorter than median lobes. Gland spine formula usually 1–1–1, with about 10 gland spines near each body margin from segments 5 to 7. Macroducts on pygidium about same size without duct between medial lobes, with 10–17 macroducts on each side of body on segments 5 to 7; prepygial macroducts of 2 sizes, larger size on marginal, submarginal and submedial areas of segments 2 to 4, smaller size on marginal or submarginal areas of mesothorax or metathorax to segments 2 or 3. Perivulvar pores in 5 groups, about 52 pores. Perispiracular pores usually with 3 loculi, anterior spiracles each with 13–16 pores, posterior spiracles absent. Anal opening located at upper of pygidium. Antennae each with 1 conspicuous seta; usually separated by more than maximum width of median lobes. Body elongated fusiform with prepygidial segments each slightly convex laterally. Only found on Quercus plants.

Material examined. Korea. GG: Gwanggyosan, 5 adult females on two slides, on Quercus acutissima (Fagaceae) bark, 15-v-2006 (B.S. Kim); Sanseong-ri, 2 adult females on one slide, same host, 19-vi-2007 (S.J. Suh). GN: Jinju-arboretum, 2 adult females on one slide, on Quercus rubra (Fagaceae) bark, 18-iii- 2008 (S.J. Suh); same data except for 1 adult female on one slide, on Quercus serrata (Fagaceae) bark; same data except for 8 adult females on two slides, on Quercus sp. ( Fagaceae ) bark; same locality, 6 adult females on two slides, on Quercus serrata (Fagaceae) bark, 19-iv-2008 (S.J. Suh); same locality, 2 adult females on one slide, on Quercus sp. ( Fagaceae ) bark, 20-v-2008 (S.J. Suh). JJ: Donnaeko, 2 adult females on one slide, on Castanopsis cuspidata var. sieboldii (Fagaceae) bark, 16-v-2012 (S.J. Suh); Halla Eco-forest, 2 adult females on one slide, on Quercus glauca (Fagaceae) bark, 21-v-2013 (S.J. Suh).

Distribution. China, Japan, * Korea ( Ben-Dov et al. 2014).

Hosts. Fagaceae : Castanea crenata , Castanea mollissima , Castanea pubinervis , Castanea sp., * Castanopsis cuspidata var. sieboldii , Quercus acuta , * Quercus acutissima , Quercus gilva , * Quercus glauca , Quercus myrsinifolia , * Quercus rubra , Quercus serrata , Quercus sp. Moraceae : Morus alba ( Ben-Dov et al. 2014) .

Figures

Figures 1–6. Pseudaulacaspis kiushiuensis (Kuwana). 1) Habitus. 2) Female. 3) Antennae. 4) Anterior spiracle. 5) Posterior spiracle. 6) Pygidium.