Delnocoris ecuadorianus, Heiss, 2021

Heiss, Ernst, 2021, Review of the neotropical Mezirinae genus Delnocoris KORMILEV, 1982 with description of a new genus and species (Hemiptera, Heteroptera, Aradidae), Linzer biologische Beiträge 52 (2), pp. 993-1003 : 996-997

Delnocoris ecuadorianus nov.sp. ( Figs 10-12 )

H o l o t y p e ♂ labelled: Ecuador 55m / 17 km E of San Lorenzo / N 01°10,98, W 078°45,16 / leg. F. Wachtel 10.11.14 // (CEHI). The specimen is designated and provided with a type label.

D e s c r i p t i o n: Head: longer than wide (1.45 / 1.15); antennae 2.95 times as long as width of head (3.40 / 1.15), length of antennal segments I / II / III / IV = 2.30 / 0.70 / 1.05 / 0.35; eyes stylate, postocular lobes converging posteriorly.

Thorax: Pronotum more than twice as wide as long (1.75 / 0.75), anterolateral expansions roundly produced not reaching anterior margin of ring like collar. Scutellum with rugose, surface lateral of median carina and a bisinuate elevation at base, lateral angles with a small semicircular expansion; structure of mesonotum and fused mtg I + II as of congeners.

Abdomen: Tergal plate flat, the smooth median elevation extends on mtg IV – V, lateral parts deeply punctured; deltg II + III fused and raised anteriorly, deltg VI + VII with finger like projections.

M e a s u r e m e n t s: Length 6.8, length of antennae 3.40; width of abdomen across tergite IV 2.50, VI 3.45, VII 2.95.

E t y m o l o g y: The specific epithet refers to Ecuador, where it was detected. D i s t r i b u t i o n: To date only known from Ecuador.

C o m p a r a t i v e n o t e s: This species is recognized and differing from congeners by smaller size of 6.8 mm (vs. 7.4 – 8.7 mm); smaller, shorter and more rounded anterolateral expansions of pronotum (vs. longer, subrectangular); scutellum with small round lateral expansions, surface lateral of median carina rugose (vs. larger expansions, surface punctured) and longer antennae of 2.95 mm (vs. at most 2.80).

Figures

Figs 10-15: Delnocoris ecuadorianus nov.sp. (10, 11) holotype ♂ dorsal and ventral; (12) holotype ♂, terminal segments ventral; (13) Delnocoris caribicus, holotype ♂, terminal segments ventral. Arrows indicate the glandular tubercles; (14) Delnocoris micropterus, illustration of terminal segments, dorsal; (15) Delnocoris caribicus paratype ♀, terminal segments ventral. Arrows indicate differences between 14,15. Scale 1 mm.