title: Two New Species of Black Flies (Diptera: Simuliidae) from the High Andes of Colombia.
abstract: The females, males, pupae, and larvae of two new species of Simulium are described and illustrated from a small stream 3950 m above sea level in the Lake Otún area of the Colombian Andes Mountains. Simulium (Pternaspatha) quimbayium n. sp. represents a 630-km northeastern extension of the distributional range of previously known members of the subgenus Pternaspatha, and Simulium (Psilopelmia) machetorum n. sp. represents the highest altitude recorded for a species of the subgenus Psilopelmia. These species illustrate the unique simuliid biodiversity in the páramo ecosystem of the high northern Andes.
authors.affiliation: Department of Biology, Science Faculty, Universidad Nacional de Colombia, Bogotá, Colombia. jsmantillag@unal.edu.co
authors.forename: Juan S
authors.initials: JS
authors.lastname: Mantilla
authors.forename: Ligia I
authors.initials: LI
authors.lastname: Moncada
authors.forename: Nubia E
authors.initials: NE
authors.lastname: Matta
authors.forename: Peter H
authors.initials: PH
authors.lastname: Adler
mesh_terms: D000531:Altitude; D063147:Animal Distribution; D000818:Animals; D003105:Colombia; D005260:Female; D008297:Male; D012843:Simuliidae / Q000033:anatomy & histology* / Q000145:classification* / Q000502:physiology; D013045:Species Specificity