Description of 33 new species of Calamoceratidae, Molannidae, Odontoceridae and Philorheithridae (Trichoptera), with detailed presentation of their cephalic setal warts and grooves 2457 Author Oláh, János Author Johanson, Kjell Arne text Zootaxa 2010 2010-05-14 2457 1 1 128 https://biotaxa.org/Zootaxa/article/view/zootaxa.2457.1.1 journal article 10.11646/zootaxa.2457.1.1 1175­5334 5313709 Molannidae Wallengren Molannidae Wallengren, 1891: 116 . As in the Calamoceratidae and Leptoceridae , the mesoscutal setose warts form a pair of elongate areas of setae in diffuse setose warts elevated from the surface. The antenna in the species of this family are shorter compared to those in the other 2 families, and the 2 preapical spurs on each hind leg are located at mid-length of. The maxillary palps are 5-segmented, with the proximal segments sometimes modified and armed with scent organs in palpal lobes. The forewings lack discoidal and thyridial cells; the median cell is absent or present in hind wings, always absent in the forewings. The hind wing venation is frequently reduced. In the hind wings, the discoidal cell is absent, and the thyridial cell is present.