New species and notes on Dissomphalus (Hymenoptera, Bethylidae) from Estação Biológica de Santa Lúcia, Santa Teresa, ES, Brazil

Five new species of Dissomphalus Ashmead, 1893 are described and illustrated, all from Espírito Santo, Brazil: D. h-ramus, D. verrucosus, D. laminaris, D. cristatus and D. scopatus. New geographic records and variation data of D. scamatus Azevedo, 1999, D. concavatus Azevedo, 1999, D. rectilineus Azevedo, 1999, D. vallensis Evans, 1979, D. gilvipes Evans, 1979, D. plaumanni Evans, 1964, D. napo Evans, 1979, D. truncatus Azevedo, 2003 and D. cornutus Evans, 1964 are included.


INTRODUCTION
Dissomphalus Ashmead, 1893 is the largest bethylid genus in the Neotropical region, with 153 species (AZEVEDO, 2003), but there are only nine species recorded from the State of Espírito Santo.In this study, five new species are described and six are recorded for the first time from Espírito Santo.
The material examined is deposited in the Entomological Collection of Universidade Federal do Espírito Santo (UFES).It was collected through sweeping of vegetation, in a trail of primary Atlantic rain forest at the Estação Biológica de Santa Lúcia, Santa Teresa, Espírito Santo (19º58'S, 40º32'W), Brazil.
Distribution.Paraná; it is recorded for the first time in the State of Espírito Santo, Brazil.
Variation.In the newly recorded series, males have the genitalia with the apex of the outer lobe of dorsal body of aedeagus bidentate and the teeth of the ventral ramus larger than in the type series.
Variation.The present series shows the same variation pattern on the tergal process as the type series.Variations.Dorsal body of the aedeagus with the two teeth acute and apex not directed downwards.
Diagnosis.This species belongs to the conicus species group.It differs from the other species of the group by the aedeagus with h-shaped ventral ramus and tubular dorsal body.
Etymology.The specific epithet refers to the hshaped ventral ramus.Diagnosis.This species belongs to the conicus species group.It is easily distinguishable from the other species by having the dorsal body with many small warts.The tergal processes are very close to the lateral areas of the tergite II.

Dissomphalus verrucosus
Etymology.The specific epithet refers to the presence of the small warts in the dorsal body of the aedeagus.
Head: mandible bidentate.Clypeus with trapezoidal median lobe, with a strong median carina.First four antennal segments ratio 18:6:5:6, segment XI 1.25x longer than wide.Front strongly coriaceous, with shallow, large and dense punctures.LH 1.06x WH; WF 0.69x WH; WF 1.17x HE; OOL 1.07x WOT; DAO 0.35x WOT; posterior ocelli distant from the vertex crest 1.4x DAO.Vertex barely convex, corner subangulate; occipital carina visible in dorsal view; VOL 0.51x HE.Mesosoma: thorax coriaceous as frons, propodeal disc 0.71x as long as wide, with median carina complete and strong striae.Metasoma: tergite II with a pair of shallow and rounded depressions, each one with a tubercle, flat-topped, with a pit on the top, placed sublaterally in the depression, closer to the lateral margin than to each other, closer to the anterior margin of the tergite II, with small tuft of hairs.
Genitalia (figs. 6-9).Paramere with apex rounded, barely arched inwards, with a series of small rounded teeth in the ventral side, base wider than apex in dorsal view, apical half with a concavity, basivolsella with conspicuous setae in the inner face; ventral ramus of aedeagus longer than dorsal body, straight, laminar, surface horizontal, with apical half divided in two arms, the outer one with the apex rounded and the inner one short and connected to dorsal body; dorsal body of aedeagus with two pairs of apical lobes, the outer pair laminar, straight, with apex with two sharpened teeth, one directed upwards and the other directed downwards (fig.8), and several small teeth around them; the inner pair stout and membranous; basal process laminar, slightly arched upwards (fig.9).Diagnosis.This species belongs to the conicus species group.It is similar to D. filus Azevedo, 2003, but D. laminaris has aedeagus with apex of the ventral ramus divided in two arms, one rounded and the other acute, and dorsal body divided in three blades.The tubercles of processes are small compared with those of other species in the group.
Etymology.The specific epithet refers to the dorsal body of the aedeagus that is divided in many blades.Head (fig.10): mandible tetradentate with basal tooth larger than the others (fig.11).Clypeus broad, slightly projected, with a median conspicuous tooth, median carina high in lateral view.First four antennal segments ratio 15:6:3:3, segment XI 1.0x as long as wide.Front slightly shiny, weakly coriaceous, with small and sparse punctures.LH 0.93x WH; WF 0.74x WH; WF 1.88x HE; OOL 1.45x WOT; DAO 0.45x WOT; posterior ocelli distant from the vertex crest 1.6x DAO.Vertex barely convex, corner subangulate; occipital carina visible in dorsal view; VOL 0.94x HE.Mesosoma: thorax coriaceous and shiny as frons.Propodeal disc 0,97x as long as wide, with median carina incomplete, slightly striate.Metasoma: tergite II without tergal process.Hypopygium with posterior margin straight.
Genitalia (figs.12-13).Paramere with base as wide as apex; margin concave and apex rounded and directed inwards in ventral view; dorsal margin with small projection basally; ventral ramus slightly shorter than dorsal body, basal half wide and apical half thin, long and slightly arched outwards; dorsal body laminar, surface vertical basally, with apical half laminar, outer face strongly convex.