Kerria nepalensis Varshney, 1976

Bashir, Nawaz Haider, Wang, Weiwei, Liu, Juan, Wang, Wei & Chen, Hang, 2021, First record of the lac-producing species Kerria nepalensis Varshney (Hemiptera, Kerriidae) from China, with a key to Chinese species, ZooKeys 1061, pp. 1-9 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.1061.73114

publication LSID

lsid:zoobank.org:pub:77FEE74A-62DD-44D4-944B-130BEE3EC3E2

persistent identifier

https://treatment.plazi.org/id/2C01C044-D889-5BEA-BEFA-C063505F6EF2

treatment provided by

ZooKeys by Pensoft

scientific name

Kerria nepalensis Varshney, 1976
status

 

Kerria nepalensis Varshney, 1976 View in CoL

Figures 1 View Figure 1 , 2 View Figure 2

Material examined.

China: Yunnan: Mengzi city, 22°56'N, 103°32'E, 15.IX.2020, coll. Juan Liu, Dalbergia cochinchinensis ( Fabaceae ), 5 slides (10 adult ♀♀) GoogleMaps .

Diagnosis.

Adult female: body generally large globular to elongate in shape, 1.7-3.87 mm long, 1.16-2.42 mm wide (Fig. 1F, G View Figure 1 ).

Dorsum. Anal tubercle well developed, elongate, 320-1100 µm long, 170-680 µm wide, apparently two-segmented (Figs 1A View Figure 1 , 2B View Figure 2 ) and bearing 6-15 anal ring setae, each 80-90 µm long (Fig. 2A View Figure 2 ); supra anal plate heavily sclerotized, a little longer than broad, with few small setae on each side (Fig. 2B View Figure 2 ); brachia oval, elongate (Figs 1B View Figure 1 , 2E View Figure 2 ), heavily sclerotized; brachial plate nearly circular, broader than long; brachial crater circular and small, 80-160 µm long, 70-130 µm wide, 0.03-0.07 mm2 in center; brachial tube 210-460 µm long, dimples inconspicuous, uncountable due to thick sclerotization (Fig. 2F View Figure 2 ); anterior spiracles widely separated (Figs 1C View Figure 1 , 2G View Figure 2 ), 220-400 µm away from brachial plate, canellar bands below anterior spiracles as a chitinous extension 150-300 µm long (Fig. 1B, C View Figure 1 ); dorsal spine 170-190 µm long, pedicel longer and tubular in shape 80-160 µm long, 70-130 µm wide at widest point (Figs 1D View Figure 1 , 2K View Figure 2 ).

Venter. Antennae very small, conical shaped, probably one segmented, with 4 fleshy and 2 short hair-like setae (Fig. 2J View Figure 2 ); mouthparts with labium length 600-780 µm, width 70-180 µm, post oral lobes each 75-140 µm wide (Fig. 2L View Figure 2 ); legs vestigial; posterior spiracles much smaller with fine pores on each side; perivulvar pores 14-31 in number on each side of anal tubercle (Fig. 2C, D View Figure 2 ); marginal duct clusters convoluted (Figs 1E View Figure 1 , 2H View Figure 2 ), 6 in number, each with 30-36 ducts (Fig. 2I View Figure 2 ); ventral duct clusters with 3 pairs, irregular in shape.

Distribution.

India, Myanmar, Nepal ( Varshney and Sharma 2020), China (Yunnan).

Host plants.

Dalbergia cochinchinensis (specimens collected in this study), Litchi chinensis ( Varshney 1976), and Ficus sp. ( Chen et al. 2011).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

SuperFamily

Coccoidea

Family

Kerriidae

Genus

Kerria