New species of Szelenyiopria Fabritius and description of the male of Szelenyiopria distinguenda (Loiácono) (Hymenoptera: Diapriidae)

Here are described and ilustrated Szelenyiopria loiaconae sp. nov., Szelenyiopria jataiensis sp. nov., and the male of Szelenyiopria distinguenda (Loiácono) (Hymenoptera, Diapriidae).

iapriini is the only tribe of Diapriinae that includes truly symphilic species, some of them are adapted morphologically to life with ants. These adaptations include extensive mimicry of the host ants and may include convergences in sculpture, pilosity, color, behavior and biology (Masner & Garcia 2002;Lachaud & Pérez-Lachaud 2012;Loiácono et al. 2013a).
Species of Szelenyiopria share the presence of straight setae with truncate apex on the body which might be used as an outlet of possible exocrine gland products (Masner & García 2002). Szelenyiporia species are solitary or gregarious primary endoparasitoids of Formicidae larvae (Loiácono 1987;Loiácono & Margaría 2009;Loiácono et al. 2013b).
Here we describe and illustrate two new species of Szelenyiopria from southeast of Brazil, Szelenyiopria loiaconae sp. nov. and Szelenyiopria jataiensis sp. nov., and we provide a description and images of diagnostic characters for the male of Szelenyiopria distinguenda (Loiácono), previously known only by females.

MAtERIAL AND MEtHODS
The hymenopterans were collected in one area of Atlantic Rainforest at Parque Estadual da Serra do Mar, Núcleo Santa Virgínia, São Luiz do Paraitinga municipality, using five Malaise traps (Townes 1972), and in areas of Brazilian savannah, including areas of riparian and savannah woodland vegetations, at Estação Ecológica de Jataí, Luiz Antonio municipality, using five yellow pan traps and Malaise traps (Townes 1972), all of them at São Paulo State, Brazil.
Specimens for the present study were dried using a Critical Point Drier (Leica EM CPD30). Morphological structures were visualized and studied using a Leica MZ 9.5 stereomicroscope with a fluorescent light source. Bright field images were taken with a Leica DFC295 digital camera attached to a Leica M205C APO stereomicroscope equipped with LED5000 HDI light source. Image stacking was performed with Helicon Focus software (version 5.3). Scanning electronic micrographs (SEMs) were taken with a FEI Quanta TM 250 SEM, using low vacuum mode. Images were further enhanced with Adobe Photoshop (version 11.0). Masner & Garcia (2002) and Eady (1967). The following abbreviations are in the descriptions: A (antenomere); POL (posterior-ocellar line): distance between the inner margins of lateral ocelli; LOL (lateralocellar line): shortest distance between the median ocellus and lateral ocellus; OOL (ocular-ocellar line); shortest distance between the lateral ocellus and the compound eye. nov. in having a pronounced clava, presence of glabrous median keel of propodeum that is not produced anteriorly in dorsal view, weakly developed dorsellum without carinae, and by the presence of rare pilosity on gena, pronotal collar, metapleuron and petiole.

Morphological terminology follows
Holotype female. (Figure 1). Length 2.3 mm; body mostly dark brown; antenna, tegula, ocelli and legs light brown; body smooth and shiny, with sparse specialized setae.

Mesosoma (Figures 5-7)
. Subequal to width of head at level of tegulae; pronotal collar with rare and sparse pilosity; mesoscutum convex with sparse long pilosity; anterior scutellar pit rectangular, deep, transverse, without median carina; mesoscutellar disc convex; axilla wider than scutellar pit; dorsellum underdeveloped, without carinae; propodeum rugulose and pilose ( Figure 7), with posterolateral corners triangular and posterior margin deeply concave medially, median keel of propodeum not sculptured and not produced anteriorly in dorsal view; mesopleuron convex with shallow medial depression ( Figure 6); metapleuron with sparse pilosity; fore wing 2.6 × longer than wide, submarginal vein reaching proximal third of wing length, stigmal vein moderately developed; hind wing narrow, 7.1 × as long as wide; legs with dense and long pilosity.       New species of Szelenyiopria Fabritius and description of the male of… Comério et al. (2019) Metasoma. Petiole as long as wide, rugulose, covered anteriorly by long whitish hairs; gaster about 1.9 × longer than wide ( Figure  8), with many long bristles ventrally (Figure 9).
Male. Antenna (Figure 18  Etymology. The specific name refers to the type locality.

Biology. Unknown.
Comments. This species differs from other species of Szelenyiopria by number of antennomeres (12). This is species is similar to S. loiaconae sp. nov., both have antennae with 12 segments, but differs by the: form of the clava, form of median keel of propodeum, and of the dorsellum; pilosity, and ratio of the vein submarginal.
Metasoma. Petiole as longer than wide; metasoma post petiole, in dorsal view, about 2.0 × longer than wide, with sparse specialized setae. Comments. The association of male and female of S. distinguenda is based in combination of the following features, which distinguish the species: mesoescutum and scutellar disc Figure 19. Szelenyiopria distinguenda (Loiácono). Male. Habitus, lateral view.  remarkably convex, anterior half of median keel of propodeum ligulate and sculptured.

DISCuSSION
The following features are firstly reported to the genus Szelenyiopria: head subrectangular, clava with five clavomeres, clava strongly abrupt and not flattened ventrally and dorsellum weakly developed without median keels.