A new species of Loxosceles Heineken & Lowe (Araneae, Sicariidae), with updated distribution records and biogeographical comments for the species from Mexico, including a new record of Loxosceles rufescens (Dufour)

By

Valdez-Mondragón, Alejandro
Cortez Roldán, Mayra Rocio
Juárez Sánchez, Alma Rosa
Solís-Catalán, Karen P.

Type

Article

Date of Publication

2018

Original Publication

ZooKeys

Volume

802

Pages

39-66

Subjects

Biogeography , Loxosceles malintzi sp. n , North America , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.802.28445

 

Abstract

A new species of the spider genusLoxoscelesHeineken & Lowe, 1832,Loxoscelesmalintzisp. n., is described from the states of Puebla, Morelos and Guerrero, in the central region of Mexico. The description is based on adult males and females with morphological and ultra-morphological images. Updated distribution maps are provided for the 39 species recorded from the Mexican territory (including the new species). The states with the greatest diversity are Baja California Sur, Baja California and Sonora, with five species each. A total of 441 records for the 39 species, based on arachnological collections, data bases and literature, were used to update the distribution maps.LoxoscelesbonetiGertsch, 1958 is the species with the highest number of records in Mexico, with a total of 58 records from different localities. The states with the most records so far are Guerrero, with 55 records, Morelos, with 35 records, and Baja California Sur, with 30 records.Loxoscelesrufescens(Dufour, 1820), an introduced species, is recorded for the second time in Mexico, from the state of Chihuahua, being the first well-documented record for the country. Mexico has the greatest diversity of species ofLoxoscelesworldwide, with 39 (two introduced species) of the 134 described species. Additionally, biogeographical comments for the species from Mexico are provided.