Archecalisius longiventris, Heiss, 2019

Heiss, 2019, New genus and species oI Calisiinae Irom Cretaceous Burmese Amber (Hemiptera, Heteroptera, Aradidae), Linzer biologische Beiträge 51 (1), pp. 83-87 : 85

Archecalisius longiventris nov.sp. ( Figs 1-2 )

H o l o t y p e: Female in a honey coloured, oval cabochon shaped piece of Burmese Amber 24x13 x 6 mm with two Apidae as syninclusions. It is designated as holotype and labelled accordingly.

D e s c r i p t i o n:

Head: Distinctly longer than wide (0.8 / 0.625); clypeus subparallel, rounded anteriorly and reaching ½ of antennal segment III, surface rather flat beset with distinct tubercles; antenniferous lobes diverging anteriorly, apices acute; antennae slender, 1.08 times as long as width of head (0.675 / 0.625), segment I+II of equal length, III tapering toward base, IV fusiform; length of antennal segments I / II / III / IV = 0.125 / 0.125 / 0.175 / 0.25; eyes oval inserted in head; postocular lobes with few distinct tubercles, roundly converging to constricted neck; vertex with two rows of scattered tubercles.

Pronotum: 1.73 times as wide as long (1.125 / 0.65), lateral margins converging anteriorly with irregular dentation, disk with four carinae, the lateral ones converging anteriorly reaching anterior margin, median ones are shorter and restricted to posterior lobe; posterior margin straight.

Scutellum: About twice as long as wide (1.8 / 0.875), moderately triangularly raised at base with four larger tubercles barely overlapping pronotum; lateral margins and median carina beset with spaced round tubercles, surface deeply punctured, apex rounded reaching anterior margin of mtg VII.

Hemelytra: Narrow laterally exposed part of corium carinate, reaching deltg IV; membrane covered by scutellum.

Abdomen: Elongate oval, lateral margins of deltg I ̅ VII each with a double row of three distinct flat tubercles; surface of deltg II ̅ VII flat and finely granulate.

Venter: Pro-, meso- and metasternum flat, separated from sternite II by a suture; sternite VI roundly excavated posteriorly for the reception of the medially split sternite VII.

Measurements: Length 4.1; length of antennae 0.675; width of abdomen 1.5.

E t y m o l o g y: The specific epithet refers to the elongate habitus.

Figures

Figs 1-2: Archearadus longiventris nov.gen. et sp. (1) dorsal view, (2) ventral view. Scale 1mm.