Metrichia longiphallata spec. nov.

(Figs 6 A–6C, 14B)

Holotype ♂, Colombia, Bogotá, Chapinero, Quebrada La Vieja, 6.ii.2017, hand net, leg. W. Mey, genitalia slide Mey 23/17 (ICN).

Paratypes: 2♂, same locality, 6.ii.2017, hand net, leg. W. Mey, genitalia slide Mey 06/18 (MfN) .

Etymology. Latin adjective longiphallata, “with long phallus,” named for the extreme length of the phallic apparatus.

Description. Male. Length of each forewing 2.8 mm. head and palpi brown, vertex with grey hairs; antennae short, dark brown, with some white flagellomeres in middle and in subapical position; each with 22 flagellomeres, apical segment acute; ocelli large, black-ringed; forewings each with black ground colour and white spots at apex and arculus; legs brown, hind tibiae with long hairs dorsally, spurs 1.3.4.

Male genitalia (Figs 6 A–6C, 14B): Segment IX in lateral aspect about 1.5 times as long as inferior appendages, posterior margin straight, anterior margin narrowed, membranous dorsally; superior appendages large and elongate; segment X long, triangular, reaching middle of inferior appendages; dorsolateral hooks nearly straight, apex pointed; inferior appendages in lateral view longer than high, each with ventral margin nearly straight, dark spots or teeth absent on rounded apical margin; phallic apparatus much longer than segment IX and inferior appendages together, inflated basally then abruptly constricted and straight, two small subapical teeth present, apical part laterally winged; inner side with dark ductus seminalis from base to tip.

Diagnosis. Because of the very long phallic apparatus with a long, dark internal tubule (= ductus seminalis) the new species appears to be most similar to M. macrophallata Flint 1991 . It can be distinguished from this species by the much longer phallus, the different form of the inferior appendages, and the little curved dorsolateral hooks.

Rhyacopsyche matthiasi Flint 1991

Material: 1 ♂ Colombia, Bogotá, Chapinero, Quebrada La Vieja, 16.xi.2016, hand net, leg. W. Mey, genitalia slide Mey 03/17 (ICN) .

Remarks. The species was described from Colombia, Antioquia. This is the second record of the species, which is suggestive of a wider distribution in the Colombian Andes.