Apetaenus (Apetaenus) litoralis Eaton

Munari, Lorenzo, 2008, Studies on the Canacidae (Diptera), subfamily Apetaeninae. II. A review of the world subgenera of Apetaenus Eaton, with a special reference to the Australian and New Zealand species, Zootaxa 1692, pp. 26-42 : 35-36

Key to subspecies of Apetaenus (Apetaenus) litoralis Eaton

1. Body strongly bristly, with setal vestiture shaggy and piceous, in particular abdomen of male exclusively

bearing several, long, strong, black setae (fig. 11); abdomen of female with sparse, noticeably shorter, black setae; head markedly setulose, often with supernumerary setae and setulae; postocellar setae variable, generally lacking, if present strongly cruciate; seta of postpronotal lobe variable, generally lacking; dorsocentral setae 1+2; katepisternum generally bearing 2–4 long setae on upper part; tergite 2 of female bearing scattered, short, hispid setae latero-ventrally. (Crozet, Kerguelen,? Heard islands) ....................... ........................................................................................................ A. (Apetaenus) litoralis litoralis Eaton -. Body covered with very characteristic, long, fine, dense, soft, apparently light brown villosity (indeed with blackish setae showing noticeably golden reflections), never shaggy and piceous; abdomen of both sexes more or less densely, softly long haired, with no distinct setae present (fig. 12); head usually without supernumerary setae and setulae; postocellar setae generally present, strongly cruciate, one of two sometimes hairlike; seta of postpronotal lobe variable, often present, strong or hairlike; dorsocentral setae variable in number; katepisternum bearing at most 2 (rarely 3) long setae on upper part; tergite 2 of female bearing several, long, dense, fine setae latero-ventrally.............................................................................2

2. Postpronotal seta strongly variable, present to absent; dorsocentral setae 1+2; costa of reduced wing generally with noticeably long and strong setae on alar apex; abdomen of female sparsely long haired; tergite 2 of female bearing both fairly long villosity and moderately short setae, anteriad and posteriad respectively, latero-ventrally. (Marion,?Prince Edward islands) .... A. (Apetaenus) litoralis marionensis n. ssp.

-. Postpronotal seta generally present; dorsocentral setae 0 + 1 (in extremely rare individuals 1 long and markedly subtle presutural also present); costa of reduced wing shaggy, bearing several, close, long setae on entire length of vein; abdomen of female thickly long haired; tergite 2 of female only bearing dense, long villosity latero-ventrally. (?Bishop, Macquarie islands) ....................................................................... ............................................................................................ A. (Apetaenus) litoralis watsoni Hardy n. stat.