Mesocallis (Mesocallis) sawashibae (Matsumura, 1917)

Lee, Yerim, Kanturski, Mariusz & Lee, Seunghwan, 2018, Psammoecus simonis Grouvelle 1892, Zoological Studies 57 (17), pp. 1-20 : 8

Mesocallis (Mesocallis) sawashibae

( Matsumura, 1917)

( Figs. 1 , 2 , 3 e-f, 7; Table 1)

Myzocallis sawashibae Matsumura, 1917: 374 .

Neocallis carpinicola Matsumura, 1919: 105 . Nippochaitophorus moriokaensis Takahashi, 1961: 187 .

Material examined: 4 alate viviparous females, Seoul, South Korea, 37°33'59.53"N, 126°58'40.69"E, on Carpinus erosa , Woon-Ha Paik leg., 3.xi.1970, no. 6146; 1 alate viviparous female, Seoul, South Korea, 37°33'59.53"N, 126°58'40.69"E, on Carpinus koreana , Woon-Ha Paik leg., 6.v.1971, no. 6241; 1 alate viviparous female, Seoul, South Korea, 37°33'59.53"N, 126°58'40.69"E, on Carpinus erosa , Woon-Ha Paik leg., 6.v.1971, no. 6247; 1 alate viviparous female, Seoul, South Korea, 37°33'59.53"N, 126°58'40.69"E, on Carpinus cordata , Woon-Ha Paik leg., 21.x.1971, no. 6837; 2 alate viviparous females, Manmulsang-area, Mt. Geumgangsan, North Korea, 38°39'24.10"N, 128°6'17.85"E, on Carpinus cordata, Jan Havelka , 24.v.1988, no. 88HA2587; 1 alate viviparous female, Soholeub, Pocheon-si, GG, South Korea, 37°49'24"N, 127°08'18"E, on Carpinus laxiflora, Yerim Lee leg., 2.viii.2013, no. 130802YR-3, DNA voucher no. Ca4; 4 alate viviparous females, Girin-myeon, Inje-gun, GW, South Korea, 37°57'19"N, 128°19'09"E, on Carpinus sp. , Duwal Keshari Ram leg., 26.ix.2013, no.130926Ram-6, including DNA voucher no. Ca5- 2, Ca5-3, Ca5-4; 10 alate viviparous females, Mt. Manisan, Is. Ganghwado, Incheon-si, GG, South Korea, 37°36'41"N, 126°26'05"E, on Carpinus turczaninowii, Yerim Lee and Hyoseok Lee leg., 17.v.2014, no. 140517YR-1; 33 alate viviparous females, Yongdae-ri, Inje-gun, GW, South Korea, 38°11'02"N, 128°21'43"E, on Carpinus sp. , Yerim Lee leg., 4.vi.2014, no. 140604YR-42, including DNA voucher no. Ca10; 13 alate viviparous females, Mt. Manisan, Is. Ganghwad, Incheon-si, GG, South Korea, 37°36'41"N, 126°26'05"E, on Carpinus turczaninowii, Yerim Lee and Hyoseok Lee leg., 21.vi.2014, no. 140621YR-3, including DNA voucher no. Ca9.

Diagnosis: This species is morphologically close to M. (M.) obtusirostris Gosh by having pale head and body color, and partly pigmented ANT. However, it can be distinguished by having 6-12 secondary rhinaria in a row on basal 2/3 of ANT III (4-7 secondary rhinaria mostly restricted to basal half of ANT III in M. obtusirostris ).

Redescription (Alate viviparous female): Color in life: Head and antenna pale yellow, distal joint of Ant.III-VIb dark, compound eye red; Thorax and abdomen pale yellow; Legs pale; cu1b of forewing, slightly dark bordered; SIPH and cauda.

Morphology: Body oval, BL 1.27-1.77 mm. Head smooth with a flat median protrusion on frons, head vertex with 0.01 mm pointed setae, epicranial suture weakly developed, head dorsum without tubercles. ANT 6-segmented, ANT 0.64- 0.76 × BL, ANT III longest with 6-12 transversely elliptical secondary rhinaria in a row on 2/3 of segment, bearing 6-11 short pointed setae, ANT IV-VI imbricated with inconspicuous hair-like setae, ANT IV without secondary rhinaria, ANT V shorter than ANT IV, BASE with a single inconspicuous seta, PT 0.80-1.25 × BASE. Rostrum not reaching to middle coxae, URS 0.06-0.08 mm long with 4-5 accessory setae, URS 0.60-0.89 × BASE, 0.67- 1.00 × HT II. Fore coxae weakly enlarged, longest setae on TIBIAE III 0.67-1.00 × middle width of TIBIAE III, HT I with 7 chaetotaxy, HT II 0.08- 0.10 mm long. Wing vein Rs of forewing weakly developed. Thorax smooth, without tubercles. Dorsal abdominal setae sometimes on small elevations, conspicuous tubercles not developed, ABD VIII with a pair of spinal setae, ABD margin I-IV with a single seta on short cone-shaped tubercles, 4th marginal tubercle 0.02-0.04 mm long. SIPH cylindrical, truncated, 0.04-0.06 mm long. Cauda knobbed, 0.08-0.11 mm long, bearing 11-13 setae. Anal plate bilobed, each lobe with 5-10 setae.

Distribution: This species is widely distributed in Korea (North and South). Also known from China ( Zhang and Zhong 1990), Japan ( Higuchi 1972), and East Siberia ( Quednau and Shaposhnikov 1988).

Host plant: This species was found on different Carpinus species ( Betulaceae ). In Korea also on Corylus sieboldiana ( Paik 1972) .

Figures

Fig. 1. Collection sites of Mesocallis spp. specimens collected in this study (●) and museum specimens (♦).

Fig. 2. A pictorial key to the species of Mesocallis in the Korean peninsula. © 2018 Academia Sinica, Taiwan

Fig. 3. Representatives of Mesocallis (Mesocallis) of Korea in life: (a) alate viviparous female of M. (M.) carpinicola sp. nov.; (b) alatoid nymph of M. (M.) carpinicola sp. nov.; (c) alate viviparous female of M. (M.) pteleae; (d) alatoid nymph of M. (M.) pteleae; (e) alate viviparous female of M. (M.) sawashibae; (f) alatoid nymph of M. (M.) sawashibae.