Langkawiana, Ík, Jan Šev Č, 2009

Ík, Jan Šev Č, 2009, Langkawiana maculata gen. et sp. n. from Malaysia and its systematic position in the tribe Robsonomyiini (Diptera: Keroplatidae), Zootaxa 2221, pp. 58-66 : 59

Langkawiana gen. n.

Type species: Langkawiana maculata sp. n.

Gender: feminine.

Etymology. The generic name is derived from Langkawi Island.

Diagnosis. A relatively small, Macrocera -like fungus gnat with elongated abdomen and narrow wings ( Fig. 1 ). Ocelli absent. Eyes relatively narrow. A large cerebral sclerite, separated from the rest of head by distinct membranous area. The membraneous area continues behind compound eyes. Orbital sclerite well developed. Frons distinct, in the form of a shallow triangular sclerite with median furrow. Palpus five segmented. Palpomeres short, approximately as long as wide. Wing with apical and median dark band. Sc ending free. Radio-median fusion distinct, as long as the stem of M-fork. Basal portion of media developed. Vein R4 absent. A1 weak but reaching wing margin. Tibial trichia arranged in regular rows. Apical spurs on mid and hind tibia strongly reduced, shorter than tibial diameter. Tergite 9 short, transverse. Gonostylus

Figures

FIGURE 1. Langkawiana maculata gen. et sp. n., male habitus (scale bar 1 mm)