Eocanthecona japanicola ( Esaki & Ishihara, 1950 )

Lee, Hodan, Kim, Junggon & Jung, Sunghoon, 2015, A New record of Genus Eocanthecona Bergroth (Hemiptera: Heteroptera: Pentatomidae: Asopinae) from the Korean Peninsula, Korean Journal of Applied Entomology 54 (3), No. 3, pp. 257-261 : 258-260

Eocanthecona japanicola ( Esaki & Ishihara, 1950)

Cantheconidea japanicola Esaki & Ishihara, 1950: 54 .

Eocanthecona japonicola Thomas, 1994: 176 .

Diagnosis. Recognized by base of third antennal segment pale brown, humeral angles slightly prominent, sclerite of vesica H-shaped.

Description. Male: Body generally dark brown tinged with polish green ( Fig. 1A).

Head greenish dark brown, with longitudinal dark brown line with yellow spots; juga disconnected each other; compound eyes somewhat reddish brown; ocelli reddish brown; antennae almost dark brown, basal part of third antennal segment pale brown, 1/2 basal part of fourth antennal segment pale brown; rostrum generally brown, fourth rostral segment somewhat reddish dark brown, first rostral segment much thicker than other segments, reaching to hindcoxae, proportion of each rostral segment as 1.12:1.43:1.22:1.14.

Pronotum generally mottled dark brown, margin of pronotum polished greenish brown, humeral margins of pronotum denticulate, humeral angles of pronotum slightly prominent; scutellum almost dark brown tinged with polished greenish brown, apice of scutellum somewhat yellowish pale brown, posterior apex of scutellum somewhat narrowly elongated; corium almost mottled dark brown, lateral margin of corium straight, membrane generally dark brown; legs generally dark brown, middle part of midtibia and hindtibia pale brown, first and second tarsal segment of midleg pale brown, 1/2 apical part of third tarsal segment of hindleg dark brown.

Abdomen generally pale brown, almost reaching to apex of membrane. Genitalia: pygophore somewhat rectangular ( Fig. 2A, B), with a pair of triangular parameres ( Fig. 2C, D), vesica membranous with H-shaped sclerite ( Fig. 2E).

Female: Similar as in males, somewhat bigger than male (see measurements). Genitalia: gonocoxites I pale yellow, weak puncture. Gonocoxite II polish green, somewhat rectangular, middle part narrow. Paratergits IX dark brown, somewhat rectangular with puncture.Paratergits VIII polish green, somewhat triangular with deep puncture ( Fig. 3A), gonocoxite II somewhat prominent in lateral view ( Fig. 3B).

Measurements. (1♂/2♀) Body length 11.4/14.0-15.0; length of head 2.2/2.3-2.4, width across eyes 2.2/2.3-2.5, interocular distance 1.1/1.2-1.3; length of antennomeres (I) 0.3/0.3-0.3: (II) 1.3/1.4-1.5: (III) 1.2/1.3-1.3: (IV) 1.7/1.7-1.8: (V) 1.7/1.6-1.8; median length of pronotum 2.4/3.1-3.4, humeral width 5.8/6.4-7.2; length of scutellum 3.7/4.4-4.7, width of scutellum 3.4/3.7-4.1.

Specimens examined. 1♂, Yeousu-si, Jeollanam-do, 26.V. 2009, S.H. Lee leg; 2♀, Suncheon-si Jeollanam-do, 23.X.2014, hibernating, under the bark of Thuja orientalis Linné (Curpressaceae), S.S. Kim leg.

Distribution. South Korea (new record); Japan.

Biology. The colony of this species was found hibernating in winter under the bark of Thuja orientalis Linnaeus, 1753 ( Fig. 4).