Description of the male of Cybaeodamus lycosoides ( Nicolet ) , with new distributional data for C . meridionalis

The male of the Chilean zodariid spider Cybaeodamus lycosoides (Nicolet, 1849) is described and illustrated for the first time. New records for this species are provided, including the first from Peru, as also new localities from Argentina for C. meridionalis Lise, Ott & Rodrigues.


INTRODUCTION
The genus Cybaeodamus Mello-Leitão, 1938 currently includes eight valid species (World Spider Catalog, 2015) distributed in South America, from northeastern Brazil to southern Argentina.The genus was recently reviewed by Lise et al. (2009), who described four new species: C. meridionalis, from Brazil and Argentina; C. taim, from Brazil, Argentina and Uruguay, and C. brescoviti and C. tocantins, from Brazil.Moreover, Dankittipakul et al. (2012) transferred Storena lentiginosa Simon to Cybaeodamus.
Males of this genus are recognized by the presence of two tegular apophyses on the male palpus (distal and lateral) of which the distal one is large and complex; females have a large epigynum with a strongly sclerotized area at the sides; the chelicerae of both sexes are densely setose.
The only species known from Chile is Cybaeodamus lycosoides (Nicolet, 1849), known only by the female, and without specific locality data.In recent times, this species was collected during arthropod inventories made in different areas in the coastal desert from North-Central Chile and Central-South Peru.Among that material, several males were found, which allow us to describe them for the first time.We also we provide new distributional data from Argentina for the species C. meridionalis Lise, Ott & Rodrigues, 2009.

MATERIAL AND METHODS
The material examined is deposited in the arachnological collections of the following: Museo Argentino de Ciencias Naturales, Buenos Aires (MACN-Ar, C. L. Scioscia), Muséum National d´Histoire Naturelle, Paris (MNHN, C. Rollard), and Museo de Entomología "Klaus Raven Büller" of the Universidad Nacional Agraria La Molina, Lima (MEKRB, M. Deza).Photographs of the preserved specimens were taken with a digital camera Leica DFC 290 mounted on a stereomicroscope Leica M165 C, and the focal planes were composed with Helicon Focus 4.62 Pro (www.heliconsoft.com).We report GPS coordinates of the localities when available; otherwise, we provide approximate coordinates (denoted with "ca.") calculated with Google Earth (http://earth.google.com)from label data.Descriptions and nomenclature of the male palp follow Lise et al. (2009) and Jocqué (1991)  Diagnosis.Males of C. lycosoides are very similar to the those of C. ornatus by general morphology of the palp, the cusps on coxae IV and the ventral patch of thickened setae on the abdomen, but differ by the shape of the distal tegular apophysis, with the two branches similar in size (Figs.3A, C); the distal branch is much longer than the proximal branch in C. ornatus), and also by the retrolateral tibial apophysis, that bears a tiny dorsal tooth (Fig. 4A).For the female see Lise et al., 2009 (figs. 48, 49, 52, 53), and Jocqué, 1991 (fig. 87).
Natural history.Cybaeodamus lycosoides inhabits primarily under stones and logs, in arid areas: transitional coastal desert in Chile, and coastal valleys and Loma-vegetation in Peru.In both countries, this species was also found associated with agroecosystems (Alcayaga et al., 2013).
Distribution.Pacific coast of Chile (Coquimbo and Atacama) and Peru (Lima and Ica).Natural history.The Argentine specimens here listed were collected in areas belonging to the Chaco Biogeographic Province (records from Corrientes) and to the northern, ecotonal areas of the Pampean Biogeographic province (sensu Morrone, 2014) bordering with the former.They were found in habitats ranging from savannas and grasslands with different palm species to cultivated, disturbed areas.Most of the specimens were obtained with pitfall traps, but the female from San Justo, Santa Fe (Fig. 5) was found by manual searching the bases of grasses in an area with a mixture of natural and adventitious

CONCLUSIONS
The male of the Chilean zodariid spider Cybaeodamus lycosoides is described for the first time, and new records are provided, including the first one from Peru.In addition, we provide new localities for the species Cybaeodamus meridionalis, previously known from the Brazilian states of Rio Grande do Sul, Distrito Federal, Minas Gerais, São Paulo, Santa Catarina, and Mato Grosso do Sul, and the provinces of Jujuy and Salta, in northwestern Argentina (Lise et al. 2009).These new records allow us to extend the known range of the latter species to central-eastern Argentina (Corrientes, Santa Fe, and Entre Ríos provinces).A few ecological data are provided for both species, suggesting a relatively wide range of habitat preferences, including some type of torelance to disturbed, cultivated areas.