Naslov
The larva of Annitella apfelbecki Klapalek, 1899 (Trichoptera: Limnephilidae)

Autori
Waringer, Johann ; Graf, Wolfram ; Kučinić, Mladen ; Previšić, Ana ; Vučković, Ivan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XIIIth International Symposium on Trichoptera, Białowieża / - , 2009

Skup
XIIIth International Symposium on Trichoptera

Mjesto i datum
Białowieża, Poljska, 22.06.2009. - 27.06.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Trichoptera; Annitella apfelbecki; Melampophylax nepos; description; distribution; ecology

Sažetak
In this poster presentation, the hitherto unknown larva of Annitella apfelbecki (Klapalek, 1899) is described and discussed in the context of contemporary Limnephilidae keys where Annitella apfelbecki keys out together with Melampophylax nepos and M. mucoreus. Separation is possible due to biogeography (A. apfelbecki is restricted to ecoregion 5: Dinaric Western Balkan where the other two species are lacking) and due to the fact that A. apfelbecki has 4 posterodorsal setae on abdominal segment 7, whereas only two are present in M. nepos and M. mucoreus. In addition, leg lengths vary greatly in the three species: the longest legs are present in M. mucoreus (hind tarsus length of fifth instar larvae: 0.77 - 0.80 mm) whereas in M. nepos the legs are significantly shorter (hind tarsus length: 0.51 - 0.59 mm) ; A. apfelbecki takes an intermediate position (0.73 – 0.74 mm). Finally, the sclerotized setal bases of the first abdominal sternum have a marked tendency of fusing in M. nepos, whereas this is only the case in single sclerites in M. mucoreus and A. apfelbecki. As in Drusinae, there seems to be an evolutionary progression in genus Annitella and Melampophylax from omnivorous shredders (e.g. A. obscurata, A. thuringica, M. melampus) to epilithic grazers (e.g. A. apfelbecki, M. mucoreus, M. nepos). Mandibles with teeth appear to be the ancestral state ; the spoon-shaped grazer mandible seems to be derived, having reduced or lost the teeth on the mandible edge.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA