Eupsenella arabana Ramos & Azevedo

Ramos, Magno S. & Azevedo, Celso O., 2012, Revision of Eupsenella Westwood, 1874 (Hymenoptera, Bethylidae), Zootaxa 3539 (1), pp. 1-80 : 21-22

Eupsenella arabana Ramos & Azevedo , sp. nov.

( Figs 14 , 59, 104, 144, 163–165)

Description. MALE. Body length 4.85 mm. LFW 3.58 mm.

Coloration. Head dark castaneous almost black; scape, pedicel and flagellum castaneous; mandible light castaneous with teeth dark castaneous; palpi castaneous; mesosoma dark castaneous almost black; tegula castaneous; wing venation light castaneous; procoxa, mesocoxa, and metacoxa castaneous; trochanters light castaneous; femora castaneous; tarsi light castaneous; metasoma castaneous.

Head ( Fig. 14 ). Head wider than long, globoid in profile; gena weakly concave in profile. Mandible with base wider than apex, two lowermost teeth larger than upper ones, lower tooth curved inward, lower margin strongly setose. Clypeus coriaceous, median clypeal lobe angulate, median concavity of median clypeal lobe absent, 0.08 LH, well marked off from frons, median carina present, 0.24 LH. Malar space inconspicuous, 0.18 mandibular base. Antenna 1.2 mm; first five antennomeres in ratio of about 12:12:12:12:12; flagellomere 1 1.5 longer than wide, flagellar pubescence dense, with few outstanding erect setae. Region between torulus and eye concave. Area between the anterior margin of eyes and demarkation of median clypeal lobe 0.10 LH. Eye protuberant, 0.58 LH,

with sparse hairs, located more laterally, lower margin without strong depression. Frons coriaceous-punctate. WH 1.24 LH. WF 0.62 WH. WF 1.3 HE. OOL 0.72 WOT. VOL 0.4 HE. Distance from posterior ocellus to vertex crest 0.33 DAO. Ocelli large, DAO 0.15 WF, ocellar triangle not compact, distance between posterior ocelli 1.90 DAO,

anterior ocellus not surpassing imaginary top eye line, posterior ocellus almost reaching vertex. Vertex straight, short setae, 0.10 LH, temple profile slightly convergent in dorsal view, with corner convex, not projected posterolaterad. Hipostomal carina arched, high.

Mesosoma (Fig. 59). Pronotal disc coriaceous-punctate, 0.37 as long as wide, anterior corner rounded, posterior margin almost straight, pronotal disc without short longitudinal furrow. Parapsidal furrow wholly conspicuous. Notauli parallel to each other. Mesoscutum 1.65 length pronotal disc. Scutellum coriaceous-punctate, 1.2 length pronotal disc, almost flat in profile, posterior margin convex medially, scutellar pit elliptical, dilated, distant each other 5.0 its own diameter. Dorsal axillar surface with fovea oval. Metanotum with median region high, coriaceous-puncticulate, as high as scutellum in profile, with fovea oval laterally. Propodeal disc wider than long; anterior margin without foveolate or transverse furrow; median carina 0.83 length propodeal disc, incomplete posterad; discal carina 0.23 length propodeal disc, parallel to median carina, straight; space between median and discal carina confused-rugulose. Mesopleuron with subtegular furrow oval; mesepimeral suture wholly conspicuous; mesopleural epicoxal lobe conspicuous. Propleuron with sequence of foveae from anterior margin of prosternum until cervical collar absent. Prosternum with median excavation complete, median suture present. Mesopectus with posterior depression heart-shaped; median suture evident.

Wings. Macropterous. Forewing ( Fig. 104 ) with 1M cell subtriangular; 1M and 1R1 cells aligned basally; C cell widening distally;1R1 cell present, distinctly longer than 2R1 cell, evenly wide; Rs b straight; 2R1 cell 0.16 LFW; distal margin of Rs c convex; r-rs vein inclined; R1 b entirely on anterior margin of forewing; Cu b absent; Rs+M vein 1.5 Rs a; M vein 1.4 Rs a; Rs a subperpendicular to anterior margin of forewing; stigma rectangular; distal stigmal margin truncate. Hind wing with four distal hamuli, last hamulus discontinuous each other.

Legs. Profemur swollen, 0.4 as wide as long. Metacoxa with median region 0.53 as wide as long. Metacoxal projection in dorsal region conspicuous, apex sharpened.

Metasoma. 0.27 as wide as long, with few setae, ventral carina of petiole present. Hypopygium ( Fig. 144 ) with posterior margin strongly angulate; teeth of posterior margin straight, teeth distant each other, almost evenly thick; lateral stalk present, but almost vestigial. Genitalia ( Figs 163–165 ) with paramere doble, apical margin in lateral view without concavity, inner margin of ventral arm not angulate in lateral view; basiparamere with apical margin angulate medially; volsella aligned with aedeagus apex; cuspis 0.36 length of apical lobe of aedeagus, 1.40 width of apical lobe of aedeagus; digitus 0.50 length of apical lobe of aedeagus, upper surface spinose; aedeagus with median region as wide as base; apical lobe 0.45 aedeagus length, fold of inner margin present; apex straight.

FEMALE. Unknown.

Material examined. Holotype ♂. AUSTRALIA, Q[ueens]L[an]D, Black Mountain Road, Julatten, 5 Sept[ember]–10 Oct[ober] 1987, A. Walford-Huggins, rainf[orest], interc[ept] trap, ANIC.

Distribution. Australia (Queensland).

Remarks. This species is similar to E. insulana by having the median clypeal lobe angulate, the median carina of propodeal disc present, the hind wing with four distal hamuli, the posterior margin of hypopygium angulate, but it differs from it by having the propodeal disc discal carina absent, the 1M cell of forewing triangular, the Rs b of forewing aligned with Cu a, the anterior margin of basiparamere angulate medially, the teeth of posterior margin of hypopygium slightly narrowed toward apex, whereas E. insulana has with the discal carina of propodeal disc present, but almost inconspicuous, the 1M cell of forewing subpentagonal, the Rs b of forewing not aligned with Cu a, the anterior margin of basiparamere not angulate medially in lateral view, the teeth of posterior margin of hypopygium almost evenly thick.

It is also similar to E. antakirinja sp. nov. because both species present the eyes large and protuberant, the ocelli large, vertex crest straight, the median clypeal lobe angulate, the median carina of median clypeal lobe present and elevated, the median carina of propodeal disc long, the Rs b of forewing aligned basally with Cu a, the genitalia with paramere doble. However this species has the area between the anterior margin of eyes and demarkation of median clypeal lobe short, the teeth of posterior margin of hypopygium almost evenly thick, the inner margin of ventral arm not angulate, the digitus long, the apical lobe of aedeagus long, the apical lobe of aedeagus with fold in inner margin present, whereas E. antakirinja sp. nov. has the area between the anterior margin of eyes and demarkation of median clypeal lobe long, the teeth of posterior margin of hypopigium

Figures

FIGURES 3–14. Head in dorsal view. 3. Eupsenella ceciliae. 4. E.diemenensis. 5. E. flavifemorata. 6. E. insulana female. 7. E. insulana male. 8. E. reticulata. 9. E. ajabatha sp. nov. 10. E. alawa sp. nov. 11. E. alura sp. nov. 12. E. antakirinja sp. nov. 13. E. araba sp. nov. 14. E. arabana sp. nov. (Scale bar = 300 µm).

FIGURES 103–112. Right forewing. 103. Eupsenella araba sp. nov. 104. E. arabana sp. nov. 105. E. baada sp. nov. 106. E. barada sp. nov. 107. E. barna sp. nov. 108. E. batjala sp. nov. 109. E. bilingara sp. nov. 110. E. bugulmara sp. nov. 111. E.

FIGURES 138–144. Hypopygium. 138. Eupsenella insulana male. 139. E. ajabatha sp. nov. 140. E. alawa sp. nov. 141. E. alura sp. nov. 142. E. antakirinja sp. nov. 143. E. araba sp. nov. 144. E. arabana sp. nov. 6. (Scale bar = 300 µm).

FIGURES 163–165. Male genitalia. 163–165 Eupsenella arabana sp. nov.; 163. Ventral view; 164. Dorsal view; 165. Lateral view. (Scale bar = 250 µm).