Rhabdias kuzmini n. sp., a parasite of the lungs of Bufo occidentalis, is described and illustrated. This Mexican taxon differs from the related species in the genus by the possession of 4 lips (2 subdorsal and 2 subventral) and 2…

Megachona chamelensis n. gen., n. sp. is described from the intestinal cecae of blue striped chub Sectator ocyurus (Kyphosidae, Perciformes), from Chamela Bay, Mexico. Megachona n. gen. most closely resembles Beaninema CaspetaMandujano, Moravec, and Salgado-Maldonado, 2001; Fellicola Petter and Køie,…

Oochoristica whitfieldi n. sp., parasitizing the intestine of the Oaxacan black iguana Ctenosaura oaxacana (Kohler and Hasbun, 2001), in Ruinas de Guiengola, Oaxaca state, Mexico, is described. The new species can be distinguished from all 4 congenera infecting Iguanidae in…

Mousonnia adpressipilosa D. L Denham ex Ramirez-Roa (Gesneriaceae), a new solitary-flowered species from southern Mexico and Guatemala. is described and illustrated. It has been collected principally in Chiapas, Mexico, with only one location in the Sierra de los Cuchumatenes, Guatemala.…

Four new species belonging to the mexicanus group of the genus Vaejovis C.L. Koch 1836 from Oaxaca, Mexico are described. The number of species of this group for the state is raised to seven. The males of V. franckei and…

A new species of Neoheterospilus, N. chamelae n. sp., is described from the ChamelaCuixmala biosphere reserve in the Pacific coast of Jalisco, Mexico. This new species is placed within the subgenus Harpoheterospilus as it has an almost indistinct suture between…

Megalopta Smith, 1853, is a Neotropical genus of nocturnal or crepuscular bees. Two subgenera are recognized with most of its nearly 30 species placed in the nominate subgenus. Species of Megalopta s. str. are more commonly collected than species of…

Earthquakes produce some of the most violent loading situations that a structure can be subjected to and if a structure fails under these loads then inevitably human life is put at risk. One of the most common methods by which…

A new species, Vaejovis atenango, belonging to the V. punctipalpi group is described from southern Mexico; this group was previously only known from the North American deserts in the USA and northern Mexico. This geographically discontinuous distribution is similar to…

Field exploration and floristic research have revealed another plant species endemic to the peninsula of Baja California, Mexico. A new shrubby species (Amyris certerae)from the Sierra Guadalupe and Sierra de la Giganta, Baja California Sur, is described here. Distribution, associated…