Folia Historico-Naturalia Musei Matraensis - A Mátra Múzeum Természetrajzi Közleményei 5. (1978-1979)
Kiss, O.: A Melampophylax nepos Mc Lachlan (syn. Halesus nepos Mc Lachlan, Trichoptera) előfordulása Magyarországon
DESCRIPTION OF LARVA The larval case is distinctly arched, narrows only very slight from front to rear. It reaches a length of 16-18 mm and a width of 4-5 mm. Its ventral surface, which is smaller than the other ones is composed of globular sand-grains, these latter are of grains, flattened pebbles and larger pieces of stone (Fig. 1.). On the surface of the case there is a thin coating of tuffaceous limestone. The larva measures 15-16 mm in length and the sclerotized aueas are dark-coloured, usually dark brownish red. The head is relatively broad, its fronto-clypeus is dark brown without any spots to be seen. At the oral margin of the clypeus there are six setae. The vertex has no spots, the setae over the eyes are the longest, this latter being characteristic of the family Limnephilidae. The broadening anterior part of the labrum is concave with setae on its margin, its one third at anterior is light-coloured the rest is chestnut brown. The blackish and slightly curved mandibles possess four teeth. The internal brush of setae is short and composed of only a few setae; the larvae are algophagous. On the lateral part of the maxillae there are two long setae, at the base of the labrum a triangular sclerotized plate as well as a setae can found on both sides. Thorax: Pronotum sclerotized, dark brown in colour. Patterns of dark spots form lines on mesonotum, its posterior corner is light in colour. The anterior median sclerotized patches of metanotum are large and at a long distance from each other, on the surface of the lateral sclerotized patches there are some setae. Le gs: Prothoracic legs are thick and relatively long, coxa has three long setae, on ventral side of femur there are some tiny spines with two long ones among them, tarsal claw is strong. Mesothoracic legs are shorter than methathoracic ones, on the ventral side of coxa there are six setae and from the distal end of tibia two short spines arise. Abdomen is yellowish white in colour. Gill filaments are present on abdominal segments two to seven. Lateral line is running from beginning of third to the beginning of ninth abdominal segment. The claw of anal clasper bears a tiny hook on its dorsal side. Fig. 2. Values of dominance for trichopterous larvae in the stream Sebesviz / 81
