Eupsenella alura Ramos & Azevedo

Ramos, Magno S. & Azevedo, Celso O., 2012, Revision of Eupsenella Westwood, 1874 (Hymenoptera, Bethylidae), Zootaxa 3539 (1), pp. 1-80 : 18-19

Eupsenella alura Ramos & Azevedo , sp. nov.

( Figs 11 , 56, 101, 141, 154–156)

Description. MALE. Body length 4.2 mm. LFW 3.43 mm.

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

Head ( Fig. 11 ). Head as long as wide, globoid in profile; gena without concavity in profile. Mandible with base wider than apex, lowermost tooth larger than upper ones, lower tooth curved inward, lower margin weakly setose. Clypeus coriaceous, median clypeal lobe angulate, median concavity of median clypeal lobe absent, 0.07 LH, well marked off from frons, median carina present, 0.26 LH. Malar space conspicuous, 0.33 mandibular base. Antenna 1.52 mm, first five antennomeres in ratio of about 9:9:9:9:10; flagellomere 1 1.29 longer than wide, flagellar pubescence sparse, with few outstanding erect setae. Region between torulus and eye slightly concave. Area between the anterior margin of eyes and demarkation of median clypeal lobe 0.14 LH. Eye not protuberant, 0.50 LH, with sparse hairs, located more laterally, lower margin without strong depression. Frons coriaceous-punctate. WH 1.0 LH. WF 0.63 WH. WF 1.33 HE. OOL 1.0 WOT. VOL 0.56 HE. Distance from posterior ocellus to vertex crest 0.25 DAO. Ocelli large, DAO 0.16 WF, ocellar triangle not compact, distance between posterior ocelli 3.14 DAO, anterior ocellus not surpassing imaginary top eye line, posterior ocellus almost reaching vertex. Vertex straight, long setae, 0.26 LH, temple profile slightly convergent in dorsal view, with corner convex, not projected postero-laterad. Hipostomal carina sinuous, low.

Mesosoma (Fig. 56). Pronotal disc coriaceous-punctate, 0.4 as long as wide, anterior corner angulate, posterior margin concave medially, pronotal disc without short longitudinal furrow. Parapsidal furrow inconspicuous. Notauli convergent posterad. Mesoscutum 1.33 length pronotal disc. Scutellum coriaceous-punctate, 1.11 length pronotal disc, almost flat in profile, posterior margin convex medially, scutellar pit almost circular, narrowed, distant each other 11.0 its own diameter. Dorsal axillar surface with fovea oval. Metanotum with median region high, coriaceous-puncticulate, as high as scutellum in profile, with fovea elliptical laterally. Propodeal disc wider than long; anterior margin without foveolate or transverse furrow; median carina 0.70 length propodeal disc, incomplete posterad; discal carina absent. Mesopleuron with subtegular furrow oval; mesepimeral suture almost inconspicuous posterad; 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 not evident.

Wings. Macropterous. Forewing ( Fig. 101 ) with 1M cell subpentagonal; 1M and 1R1 cells not aligned basally; C cell evenly narrow; 1R1 cell present, slightly longer than 2R1 cell, evenly wide; Rs b convex; 2R1 cell 0.17 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 1.25 Rs a; M vein 1.4 Rs a; Rs a slightly inclined toward tegula; 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 0.5 as wide as long. Metacoxal projection in dorsal region conspicuous, apex rounded.

Metasoma. 0.31 as wide as long. Hypopygium ( Fig. 141 ) with posterior margin strongly angulate; teeth of posterior margin straight, teeth distant each other, almost evenly thick; lateral stalk present, but short. Genitalia ( Figs 154–156 ) with paramere simple, apical margin in lateral view with weak concavity, paramere not fused of paramere to basiparamere; basiparamere with apical margin not angulate; volsella aligned with aedeagus apex; cuspis 0.20 length of of apical lobe of aedeagus, 0.63 width of apical lobe of aedeagus; digitus 0.20 length of apical lobe of aedeagus, upper surface not spinose; aedeagus with median region as wide as base; apical lobe 0.45 aedeagus length, fold of inner margin present; apex rounded.

FEMALE. Unknown.

Material examined. Holotype ♂. AUSTRALIA, Q[ueensland], 19.00S 146.12E, 900 m, 25 Oct [ober]–30 Nov [ember] 1980, D.Frith, Malaise trap, ANIC.

Distribution. Australia (Queensland).

Remarks. This species is similar to E. insulana by having the median carina of propodeal disc present, the hind wing with four distal hamuli, the posterior margin of hypopygium, but it differs from it by having the propodeal disc with the discal carina absent, the genitalia with paramere simple, whereas E. insulana has the discal carina of propodeal disc absent and the genitalia with two paramere.

It is also similar to E. ajabatha sp. nov. because both species presents the ocelli large, the median carina of median clypeal lobe elevated in profile, the region between the anterior margin of eye and antennal torulus straight, the median clypeal lobe angulate, the median carina of propodeal disc present and the lateral stalk of hypopygium present. However this species has scutellar pit small and almost circular, the C cell of forewing conspicuous only distally, the genitalia with paramere simple and the genitalia with paramere long, whereas E. ajabatha sp. nov. has the scutellar pit large and elongated, the C cell of forewing conspicuous almost at all extension of C cell, the genitalia with paramere doble and the genitalia with paramere short.

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 93–102. Right forewing. 93. Eupsenella ceciliae. 94. E. diemenensis. 95. E. flavifemorata. 96. E. insulana female.

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 154–162. Male genitalia. 154–156 Eupsenella alura sp. nov.; 154. Ventral view; 155. Dorsal view; 156. Lateral