First records of Perithous Holmgren (Hymenoptera: Ichneumonidae: Pimplinae) and Neoxorides Clément (Poemeniinae) from Mexico.

Two genera, Perithous Holmgren (Pimplinae) and Neoxorides Clément (Poemeniinae), are recorded for the first time from Mexico. Two species are described as new to science: Perithous escondidus Khalaim & Ruíz-Cancino, sp. nov. (Mexico: Nuevo León) and Neoxorides borderai Khalaim, sp. nov. (Mexico: Hidalgo). A brief review of the North American species of Perithous and Neoxorides is given, along with identification keys for North American taxa are provided.

A Survey of the Mosquito Species in Maxcanu, Yucatan, Mexico.

A survey was carried out to identify the mosquitoes inhabiting human premises in the rural locality of Maxcanú, Yucatán, Mexico. Using the Centers for Disease Control and Prevention backpack aspirators, simple random sampling was carried out inside of 101 homes during the November 2013 rainy season. A total of 1,492 specimens were collected. Three subfamilies (Anophelinae, Culicinae, and Toxorhynchitinae) and 5 species were identified: Anopheles albimanus, Aedes aegypti, Culex interrogator, Limatus durhamii, and Toxorhynchites theobaldi. The most abundant species was Cx. interrogator (74%) followed by Ae. aegypti (25%). The Chao 1 and Bootstrap species richness estimator indicated that it was possible to collect 90% of the expected species. This is the 1st time that the presence of An. albimanus, Cx. interrogator, Li. durhamii, and Tx. theobaldi has been recorded in Maxcanú.

Four new species of Aphelinidae (Hymenoptera: Chalcidoidea) from Mexico.

Four new species of Encarsia Förster (Hymenoptera: Aphelinidae) from Mexico are described--E. albata Myartseva sp. n. (State of Nuevo León), E. barracas Myartseva sp. n. (State of Baja California Sur), E. chichenitza Myartseva sp. n. (State of Yucatán) and E. elenae Myartseva sp. n. (State of Tamaulipas). A key to the species of Encarsia in Mexico published in 2012 is modified to include the newly described species.