Two new orthoclad species from Colombian Andes (Diptera: Chironomidae).

Lipurometriocnemus. bogotensis sp. n. and Antillocladius laviejae sp. n., two species collected at the "La Vieja" creek, near Bogotá, Colombia; 2666 m, are described and depicted as male imagines. L. bogotensis sp. n. can be separated from other Lipurometriocnemus species by lacking acrosticals setae on thorax, thus an emendation of the genus concept is presented. Antillocladius laviejae sp. n. is differentiated from other closely related members of the genus mainly by the pilosity of wings.