Brachyrhynchus amplicollis (Linnavouri, 1978)

Heiss, Ernst, 2023, A new species, a new synonymy, a revised generic assignment and new records in some African and Palaearctic Aradidae (Hemiptera: Heteroptera), Zootaxa 5315 (5), pp. 469-478 : 476-477

publication ID	https://doi.org/10.11646/zootaxa.5315.5.3
publication LSID	lsid:zoobank.org:pub:25D67453-6426-4DED-ABCD-D5D2C1B86C82
DOI	https://doi.org/10.5281/zenodo.8142366
persistent identifier	https://treatment.plazi.org/id/756C879A-D058-7279-FF7B-FD22F1B5FED6
treatment provided by	Plazi (2023-07-13 08:23:51, last updated 2024-11-27 07:49:45)
scientific name	Brachyrhynchus amplicollis (Linnavouri, 1978)
status

Treatment

( Figs. 9, 12 View FIGURES 7–14 , 16 View FIGURES 15–19 )

Mezira amplicollis Linnavuori, 1978: 6 (original description from Ethiopia)

Brachyrhynchus amplicollis: Kormilev & Froeschner (1987) : 114 (listed); Heiss (2013): 337 (checklist); Kment et al. (2015): 424 (type catalogue).

Type material examined. Paratype: ♁ ( Fig. 9 View FIGURES 7–14 ), ‘ Ethiopia / Shashamanni / 7–8. VI. 63 / Linnavuori [p] // PARATYPE [p] / Mezira / amplicollis [hw] / R. Linnavuori [p] Lv. [hw, yellow label] ( CEHI) .

Comments. This species is very close to Brachyrhynchus abyssinicus , and the two species share size, general habitus and characteristic lateral expanded postocular lobes. It differs however by wider and more laterally expanded paranota and longer antennal segment II; small differences are recognizeable in the outline of the parameres ( Figs. 16 View FIGURES 15–19 vs. 17). As the only record of B. amplicollis is from the type locality in Ethiopia, which is surrounded by records of B. abyssinicus , it might be the case that the two species are conspecific and their observed differences are due to intraspecific variability. This can only be decided when more material is available.

This species belongs to Brachyrhynchus Laporte, 1832 , sharing the deeply emarginate posterior margin of the pronotum and large claws without pulvilli as stated by Kormilev (1971: 31). The valid name is currently Brachyrhynchus amplicollis (Linnavouri, 1978) .

References

Heiss, E. (2013) Annotated checklist of the flat bug family Aradidae Brulle, 1836 from East Africa (Hemiptera, Heteroptera). Zootaxa, 3718 (4), 331 - 344. https: // doi. org / 10.11646 / zootaxa. 3718.4.3

Kment, P., Kolinova, Z. & Heiss, E. (2015) Catalogue of the type specimens of true bugs (Hemiptera: Heteroptera) deposited in the National Museum, Prague, Czech Republic. Pentatomomorpha: Aradidae. Acta Entomologica Musei Nationalis Pragae, 55 (1), 411 - 443.

Kormilev, N. A. (1971) Mezirinae of the Oriental Region and South Pacific (Hemiptera - Heteroptera: Aradidae). Pacific Insects Monograph, 26, 1 - 165.

Kormilev, N. A. & Froeschner R. C. (1987) Flat Bugs of the World. A synonymic List (Heteroptera: Aradidae). Entomography. Vol. 5. Entomography Publications, Sacramento, California, 245 pp.

Linnavuori, R. (1978) Hemiptera of the Sudan, with remarks on some species of the adjacent countries 6. Aradidae, Meziridae, Aneuridae, Pyrrhocoridae, Stenocephalidae, Coreidae, Alydidae, Rhopalidae, Lygaeidae. Acta Zoologica Fennica, 153, 1 - 108.

Figures

FIGURES 7–14. 7–9—habitus: 7—Brachyrhynchus abyssinicus Bergroth, 1895, holotype, male; 8—Brachyrhynchus lindemannae (Kormilev, 1956), holotype, male; 9—Brachyrhynchus amplicollis (Linnavuori, 1978), paratype, male (pygophore removed). 10–12—head and pronotum: 10—B. abyssinicus, holotype, male; 11—B. lindemannae, holotype, male; 12—B. amplicollis, paratype, male. 13–14—terminal segments: 13—B. abyssinicus, holotype, male; 14—B. lindemannae, holotype, male. Scales: 1 mm

FIGURES 15–19. 15—Brachyrhynchus abyssinicus Bergroth, 1895, female from Ethiopia: Maraquo, habitus. 16— Brachyrhynchus amplicollis (Linnavuori, 1978), male paratype from Sashamanni, left paramere. 17—B. abyssinicus, male from Maraquo, left paramere. 18–19—Aradus congoensis sp. nov., holotype, male genitalia: 18—left paramere; 19—pygophore. Abbreviations: pa = paramere; pr = parandrium; tgIX = tergite IX. Scales:1 mm (15), 0.2 mm (16–19).