Acritoptila amphapsis
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Ordo: Trichoptera
Familia: Hydroptilidae
Genus: Acritoptila
Name
Acritoptila amphapsis Kelley – Wikispecies link – Pensoft Profile
Revised diagnosis
Males of Acritoptila amphapsis are distinctive, being distinguished from males of other Acritoptila species by their genitalia in ventral view with parameres in form of pair of mesally directed, horn-like spines postero-lateral to gonopods (Fig. 15) and, in lateral view, coarsely hooked apices of the “ventral processes” (as termed by Kelley 1989[1]), here interpreted as subgenital processes (Figs 15, 16). Females are distinguished by the apico-mesal concavity and sclerotised plate-like gland on sternite VIII (Fig. 28). Male antennae each with 31–35 flagellomeres, bicoloured with distal dark band of 9 flagellomeres followed by 9 pale flagellomeres apically; forewing length, 1.9–2.0 mm (n = 4). Female antennae each with 24–26 flagellomeres, bicoloured with distal dark band of 6 segments followed by 6 pale apically; forewing length 1.8–2.0 mm (n = 5).
Remarks
This species was not commonly collected, but was taken in both the northern and southern provinces (Fig. 35). It was identified only in samples taken in the wet season, from late November, with the largest sample dated 8–15 January. This could indicate a restricted period of emergence, or possibly a later time of emergence than for other congeners. A pupal case attributed to this species by Wells (1995[2]: fig. 17) and pictured here in Fig. 34 is a subrectangular purse case constructed of fine sand grains.
Material examined
Holotype male: New Caledonia, Honailu River, (BPBM); cases, cased pupa, Province Sud, creek between Negropa and Koh on La Foa-Canala Road, 19 Dec. 1983, A Wells (ANIC); 1 male (on slide), Province Sud, W slope Mt Ningua, Kwé Néco, Stream, at Camp Jacob, 3.7 km WNW summit of Mt Ningua, on Boulouparis-Thio Road, about 50 m upstream road, 21°43.613'S, 166°06.567'E, 150 m, 29.xi–12.xii.2003, Malaise trap, loc#054, KAJ (NHRS); 1 male, Province Nord, 50 m upstream bridge on Hienghène-Tnèdo road, 3.9 km S summit of Mt Tnèda, 2.2 km E Tnèdo, 20°43.085'S, 164°49.928'E, 29 m, 7.xii.2003, light trap, loc#071, KAJ (NHRS); 23 males, 54 females (2 males, 2 females on slides), Province Nord, Bouérabate Stream, S Mont Ninndo, along road Barabache-Boulagoma, 20°17.409'S, 164°11.242'E, 60 m, 19.xii.2003–7.i.2004, Malaise trap, loc#089, KAJ (NHRS); 1 male Province Nord, Forêt Plate, Ouendé River, at 2.5 km WNW summit of Katépouenda, 23.3 km E Pouembout, 21°07.490'S, 165°06.723'E, 470 m, 8–15.i.2004, Malaise trap, loc#112, KAJ (NHRS).
Taxon Treatment
- Wells, A; Johanson, K; 2014: Review of the New Caledonian species of Acritoptila Wells, 1982 (Trichoptera, Insecta), with descriptions of 3 new species ZooKeys, 397: 1-23. doi
Other References
- ↑ 1.0 1.1 Kelley R (1989) New species of micro-caddisflies (Trichoptera: Hydroptilidae) from New Caledonia, Vanuatu and Fiji. Proceedings of the Entomological Society of Washington 91: 190-202.
- ↑ 2.0 2.1 Wells A (1995) New Caledonian Hydroptilidae (Trichoptera), with new records, descriptions of larvae and a new species. Aquatic Insects 4: 223-239. doi: 10.1080/01650429509361591
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