Alcecoris cochlearatus Yasunaga & Yamada & Tsai 2017, sp. nov.
Creators: name: Yasunaga, Tomohide
name: Yamada, Kazutaka
name: Tsai, Jing-Fu
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Alcecoris
Alcecoris cochlearatus

description: Alcecoris cochlearatus sp. nov.
(Figs. 3E–J, 8)
Diagnosis. Distinguished readily from any known congener by its orange-brown basic coloration (Fig. 3E); two apical branches on antennal segment I and typically spoon-shaped antennal segment II (Figs 3H, 8); shiny, highly polished pronotum; sharply pointed scutellum with a bundle of stiff setae (Figs 3J, 8D); shiny black callosity apically on corium; and white base of cuneus.
Description. Holotype female (Fig. 3E–J, 8): Body generally shiny orange-brown, with fuscous corium, forewing membrane and abdomen; dorsal surface with sparsely distributed, simple, semierect setae. Head shiny orange-brown, narrowly pale along caudal margins of compound eyes, higher than wide in frontal view; compound eyes strongly protrusive dorsad, slightly separated at midline, occupying dorsal 1/4 of head. Antenna orangebrown; segment I polished, with two apical branches; segment II highly polished, conspicuous, spoon-shaped or paraboloid, caudally (or dorsally) concave; segments III and IV filiform. Labium shiny dark brown, reaching abdominal sternum IV; segment I and basal 2/3 of segment II orange-brown. Pronotum polished, impunctate, with distinctly carinate lateral margin; scutellum conically projected, with a bundle of stiff setae at apex; pleura generally shiny brown, with light brown scent efferent system. Hemelytron shiny dark brown, shallowly and roughly punctate, with lateral margin pale brown, semitransparent; clavus and anterior part of corium speckled with pale spots; apical part of corium with a shiny, fuscous callosity; cuneus with white basal half, black apical half and pale brown lateral margin; membrane including veins wholly fuscous, opaque. Coxae and legs pale creamy brown; legs long; distal 2/3 of meso- and metafemora as well as proximal 1/2 and extreme apices of meso- and metatibiae coffee brown; all tarsi smoky brown. Abdomen uniformly shiny fuscous. Genitalia not examined.
Measurements. Holotype female: Body length 2.70; head width across eyes 0.53; head height 0.75; lengths of antennal segments I–IV: 0.33, 0.90, 0.30, 0.45; maximum width of antennal segment II 0.57; mesal pronotal length 0.50; basal pronotal width 0.78; width across hemelytra 1.05; lengths of metafemur 1.05, tibia 1.65 and tarsus 0.41.
Distribution. Peninsular Malaysia (central highlands).
Biology. Unknown.
Etymology. From Latin, cochlear [= spoon, cup] + atus [suffix of possession], referring to the distinctly spoonlike antennal segment II of this new species; an adjective.
Holotype: ♀, MALAYSIA: Pahan, Cameron Highlands, SE of Ringret, Gunung [Mt.] Berembun, 4.35N, 101.45E, 26 Nov 1992, K. Matsumoto (AMNH _PBI 00380583) (TKPM).
description: Published as part of Yasunaga, Tomohide, Yamada, Kazutaka & Tsai, Jing-Fu, 2017, Taxonomic review of the plant bug subfamily Isometopinae for Taiwan and Japanese Southwest Islands, with descriptions of new taxa (Hemiptera: Heteroptera: Miridae: Isometopinae), pp. 421-439 in Zootaxa 4365 (4) on pages 435-437, DOI: 10.11646/zootaxa.4365.4.3, http://zenodo.org/record/1119207