One new species and one new record of Dryinus Latreille, 1804 (Hymenoptera: Dryinidae) from Uruguay

. Dryinus Latreille, the most diverse genus of Dryininae (Hymenoptera: Dryinidae), has a worldwide distribution with 268 extant species, of which 103 are reported from the Neotropics. Only eight species of Dryinidae have been recorded in Uruguay, none of them belong to genus Dryinus . In this study, we describe the first species of Dryinus in Uruguay, Dryinus rogeriae nov. sp. and expanded the geographical distribution of D. bocainanus (Olmi) based on specimens collected in eastern Uruguay. We illustrate the studied species and provide a distributional map.

In this study, we present the description of the first Dryinus in Uruguay, Dryinus rogeriae nov. sp. and provide novel information on the geographical distribution of D. bocainanus (Olmi) in eastern Uruguay.

Material and Methods
The specimens treated in this paper were collected as part of the project "Characterization of pollinating insects, parasitoids and predators in environments with different anthropogenic modifications in eastern Uruguay and their evaluation as bioindicators of environmental quality" founded by the Instituto Nacional de Investigación Agropecuaria of the República Oriental del Uruguay, between October 2013 and September 2016. Two Malaise traps (Townes 1972) with 70% ethanol were set up about 100 m apart and samples were collected every two weeks between December 2014 and December 2016. The traps were set up in a natural field area with low grazing intensity (34°05'1.07"S, 53°45'43.08"W -57 m asl) and in an area with constant grazing by cattle and sheep (34°05'26.8"S, 53°52'14.4"W -89 m asl), near the town of Castillos, Rocha Department, Uruguay.
Species identification was based on the identification key provided by Olmi & Virla (2014). The morphological terminology follows Olmi & Virla (2014), except for venation, which follows Brothers (2011), and integumental sculpture, which follows Harris (1979). The terminology of propodeum dorsal and posterior surface follows Olmi & Virla (2014). The studied specimens were compared with images of the holotypes of D. bocainanus (Olmi, 1987) and D. tuparrensis Olmi, 2004  The following abbreviations are used in the descriptions: POL, refers to the minimum distance between the inner edges of the lateral ocelli; OL, to the minimum distance between the inner edges of the lateral ocellus and the median ocellus; OOL, to the minimum distance from the outer edge of the lateral ocellus to the eye inner margin; OPL, to the minimum distance from the posterior edge of a lateral ocellus to the occipital carina; and TL, to the minimum distance from the posterior edge of eye to the occipital carina.
Color images were taken at the Laboratório de Biologia Comparada de Hymenoptera (LBCH) at the Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brazil, using a Leica M125 stereomicroscope coupled to a Leica DFC295 digital camera. The images acquired were stacked to obtain an extended depth of field using Zerene Stacker version 1.04. Scanning electron microscopy (SEM) images were obtained with the VEGA3 TESCAN system at the Centro de Microscopia Eletrônica da UFPR. The distribution map was produced on the website SimpleMappr (Shorthouse 2010). Figures were prepared using Adobe Photoshop (version 11.0).

Remarks.
In the key to the females of the Neotropical Dryinus proposed by Olmi & Virla (2014), Dryinus rogeriae nov. sp. belongs to group 2, termed "ruficauda", since its members have an enlarged claw (Figs. 1E, 2C) much longer than the arolium, with one subapical tooth and absent notauli (Fig. 1D). In the identification key for the species of group 2, D. rogeriae nov. sp. is close to D. tuparrensis ( Figs antenna with apical part of flagellomere 3 and 4-5 darkened (Fig. 1A) (vs. testaceous (Fig.  2B)); pronotum red-testaceous (Figs. 1A, 1D) (vs. predominantly black ( Fig. 2A)); fore wing with two dark and complete transverse bands ( Fig. 2A) (vs. with two basal bands very small (Fig. 1A)); metasoma with two first terga testaceous and others black with transverse yellow band (vs. black with transverse yellow bands (Fig. 1A)); frontal line incomplete Etymology. The species name is a feminine noun in the genitive case. It is a privilege to name this new species after Dr. Rogéria Inês Rosa Lara, entomologist at the Instituto Biológico, Ribeirão Preto, São Paulo, Brazil, for her friendship and dedication in the study of the Neotropical Neuroptera.
Comments. The studied specimen from Uruguay differs from the holotype in the following characters: head predominantly black (

Discussion
No compilatory studies of the Uruguayan Dryinidae fauna exist to date, and the knowledge about the species that occur comes from sporadic studies like those of Olmi (1984Olmi ( , 1993Olmi ( , 1998, Olmi et al. (2000), and Olmi & Virla (2014).
For the first time, Dryinus has been recorded in Uruguay, a country in which only eight species in four genera of Dryinidae were recorded previously. Now, by this paper, ten species in five genera are reported. They certainly represent only a fraction of Uruguayan Dryinidae fauna. Like many other species of Dryinidae from the Neotropical region, nothing is known about the biology of D. rogeriae nov. sp.
With its vast geographical distribution throughout the Neotropics, D. bocainanus has been recorded in Panama, Ecuador, Brazil, and Paraguay (Olmi & Virla 2014). Here, for the first time, we document the presence of this species in Uruguay (Fig. 5).
These new records show the importance of carrying out faunistic research in areas where the entomofauna is little known. These studies provide basic information on local biodiversity, which is essential for the development of ecological and biogeographic research, conservationist policies, and biological control programs.   (blue circle= type locality). / Distribución geográfica de Dryinus bocainanus (Olmi) (círculo rojo= localidad tipo, círculo rojo con punto negro= registros conocidos, círculo rojo con punto blanco = nuevo registro). Dryinus rogeriae sp. nov. (círculo azul= localidad tipo).