Byssoidecerus levigatus, Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2006

Yao, Yunzhi, Cai, Wanzhi & Ren, Dong, 2006, Fossil flower bugs (Heteroptera: Cimicomorpha: Cimicoidea) from the Late Jurassic of Northeast China, including a new family, Vetanthocoridae, Zootaxa 1360, pp. 1-40 : 20-22

Byssoidecerus levigatus sp. nov.

( Figs. 30–36 )

Description. Body narrow, about 2.9 times (ɗ) or 2.6 times (Ψ) as long as wide. Head as wide as long; rostrum longer than head and pronotum combined, third segment about 7.5 times as long as first, about 3.7 times as long as second, fourth segment as long as second; second antennal segment about 4 times (ɗ) or 2.7 times (Ψ) as long as first, 1.3 times as long as third, third and fourth segments subequal in length; interocular space narrower than interocellar space (ɗ), eyes about 3 times (ɗ) or 0.5 times (Ψ) as wide as interocular space. Pronotum with wide paler markings laterally, 2 times as wide as long, anterior margin about 0.5 times as long as posterior, anterior feebly concave, sides convex, posterior margin nearly straight; scutellum slightly shorter than pronotum at midline, 1.5 times as wide as long; femora stout, over 2 times as thick as corresponding tibiae, fore tarsus about 0.25 times as long as corresponding tibia, mid tarsus about 0.4 times as long as corresponding tibia, hind tarsus nearly 0.4 times as long as hind tibia, hind leg distinctly longer than fore and mid legs, tibia longer than femur. Outer margin of clavus, basal and subapical portions of corium with pale markings, fore wing costal margin feebly convex, middle with deep medial fracture, ending at middle of corium, clavus wide and large, nearly 4 times as long as wide, almost 0.5 times of hemelytron in length; cuneus dark, longer than width. Dorsal laterotergites almost 0.25 times of abdomen in width, ovipositor shorter than last two abdominal segments in length.

Dimensions (in mm). Body length 7.0 (ɗ), 7.2 (Ψ); maximum width of body 2.4 (ɗ), 2.8 (Ψ); head length 1.0 (ɗ), 0.7 (Ψ), width 1.0 (ɗ), 0.8 (Ψ); length antennal segments I–V: 0.3, 1.3, 0.9, 0.9 (ɗ), 0.4, 1.1, 0.9, 0.9 (Ψ); length rostral segments I–IV: 0.2, 0.4,?,? (ɗ), 0.2, 0.4, 1.5, 0.4 (Ψ); length pronotum 1.0 (ɗ), 1.2 (Ψ), width 2.1 (ɗ), 2.2 (Ψ); length scutellum 0.9 (ɗ), 1.0 (Ψ), width 1.6 (ɗ), 1.4 (Ψ); length hemelytron 5.3 (ɗ), 5.3 (Ψ), width 1.7 (Ψ), length anterior margin of corium 3.7 (ɗ), 3.9(Ψ), length clavus 2.2 (ɗ), 2.4 (Ψ), width 0.6 (ɗ), 0.6 (Ψ); length fore leg: femur 1.25 (ɗ), tibia 1.6 (Ψ), tarsus 0.4 (Ψ); length middle leg: femur 1.4(ɗ), 1.4(Ψ), tibia 1.5 (ɗ), 1.5(Ψ), tarsomeres I–III: 0.14, 0.21, 0.46 (ɗ), total 0.4 (Ψ); length hind leg: femur 2.0 (ɗ), 2.0 (Ψ), tibia 2.5 (ɗ), 2.4 (Ψ), tarsomeres I–III: 0.25, 0.25, 0.53 (ɗ), 0.2, 0.2, 0.3 (Ψ); length ovipositor 0.9.

Type materials. Holotype, ɗ, CNU-HE-LB2006025 (dorsoventrally compressed); paratypes, 2 Ψ, CNU-HE-LB2006026/035 (dorsoventrally compressed).

Locality and horizon. Yixian Formation, Late Jurassic Chaomidian Village, Beipiao City, Liaoning Province, China.

Etymology. The name is derived from the Latin levigatus (smooth).

Figures

FIGURES 30 – 33. Byssoidecerus levigatus gen. & sp. nov. 30. Paratype, Ψ, CNU-HE- LB 2006035; 31. paratype, Ψ, CNU-HE-LB 2006026; 32 – 33. holotype, ♂, CNU-HE-LB 2006025: 32. dorsal view, 33. ventral view. Scale bar = 1 mm.

FIGURES 34 – 36. Byssoidecerus levigatus gen. & sp. nov. Photograph. 34. holotype, ♂, CNU-HE - LB 2006025; 35. Paratype, Ψ, CNU-HE-LB 2006035; 36. paratype, Ψ, CNU-HE-LB 2006026. Scale bar = 1 mm.