Chiletrichinae, Published, 2007

DE SOUZA AMORIM, DALTON & RINDAL, EIRIK, 2007, Phylogeny of the Mycetophiliformia, with proposal of the subfamilies Heterotrichinae, Ohakuneinae, and Chiletrichinae for the Rangomaramidae (Diptera, Bibionomorpha), Zootaxa 1535 (1), pp. 1-92 : 13-14

Chiletrichinae , subfam. n.

Type genus. Chiletricha Chandler , here designated

Diagnosis. First flagellomere more than 1.5 times succeeding flagellomeres. Medial fork relatively short, M 1 and M 2 diverging beyond middle of wing; r-m oblique backwards. Male tergite 9 with 1 or 2 pairs of projections, each with number of short, black spines.

Description. Three ocelli present, median one usually slightly more ventral than lateral ones, lateral ocelli apart from eye margin. Eyes at most slightly emarginate, eye bridge absent. Basal flagellomere typically elongate, more than 1.5 times succeeding flagellomeres, setae haphazardly distributed. Clypeus short, except in 1 species of Rhynchoheterotricha , in which it is as long as front tibia. Maxillary palpus with palpiger plus 4 palpomeres, distal article longer than preceding ones (in Rhynchoheterotricha and Kenyatricha unknown). Proepimeron triangular. Primary anapleural suture present. Mesepimeron elongate, quite straight, high, slen- der at ventral end. Laterotergite rounded posteriorly. R 5 long, R 1 shorter only in Insulatricha , first sector of Rs short, oblique forward, r-m short (except in Eratomyia , gen. n.), oblique backwards. Medial fork short, M 1 and M 2 diverging beyond middle of wing, tb (M 1+2 /M) longitudinal, at most slightly longer than m-cu. A 1 present, incomplete. Male tergite 9 with 1 or 2 pairs of distal projections, each with group of strong spines, a unique feature within Bibionomorpha.

3+4

Genera included: Chiletricha , Eratomyia , Insulatricha , Rhynchoheterotricha , and Kenyatricha . Anisotricha and Nepaletricha should be placed here tentatively, although this is pending a reexamination of their species.