Nine species of Mallophaga from Peruvian birds are reported in this work. Two Mallophaga Amblycera: Heteromenopon laticapitis y Menacanthus pici, as well as seven Mallophaga Ischnocera: Alcedoffula theresae, Brueelia brunneinucha, Chelopistes meleagridis, Columbicola columbae, Paragoniocotes aratingae, Penenirmus jungens y Saemundssonia (Saemundssonia) lari, were identified morphologically. A brief description of each chewing lice and discussion about their hosts and distribution is done.

En el presente trabajo se reporta nueve especies de malófagos colectados de aves peruanas. Dos malófagos Amblycera: Heteromenopon laticapitis y Menacanthus pici, así como siete malófagos Ischnocera: Alcedoffula theresae, Brueelia brunneinucha, Chelopistes meleagridis, Columbicola columbae, Paragoniocotes aratingae, Penenirmus jungens y Saemundssonia (Saemundssonia) lari, fueron determinados mediante el diagnóstico morfológico. Se realiza una breve descripción de cada malófago, así como la discusión de sus hospederos y distribución.

We report for first time the presence of nematode, Serratospiculum tendo Nitzsch, 1819, parasitizing air sacs of a Peregrine Falcon (Falco peregrinus Tunstall, 1771). Six nematodes (2 males and 4 females) were collected and identified as S. tendo. The discovery of this nematode is the first record in Peru.

We report for first time the presence of nematode, Serratospiculum tendo Nitzsch, 1819, parasitizing air sacs of a Peregrine Falcon (Falco peregrinus Tunstall, 1771). Six nematodes (2 males and 4 females) were collected and identified as S. tendo. The discovery of this nematode is the first record in Peru.