Rhabdepyris callosus Stein & Azevedo, 2007

Stein, P. R. W. & Azevedo, C. O., 2007, Synopsis of lobatifrons species-group (Hymenoptera: Bethylidae, Rhabdepyris) from Neotropical region, with redefinition of the group, Zootaxa 1444 (1), pp. 23-34 : 26-27

Rhabdepyris callosus Stein & Azevedo , New Species

( Fig. 9–15 )

Diagnosis. Propodeal disc with five discal carinae, withuot a pair of additional carinae beside median one. Paramedian carina medially convergent and posteriorly divergent.. Aedeagus apex higher than cuspis apex in lateral view, median portion with callus in outer margin.

Description. Holotype. Male. Body length 5.14 mm. LFW 3.02 mm. Body and coxae black; mandible, palpi, tibiae and tarsi light castaneous: antenna and tegula castaneous; scape and femora dark castaneous; wings subhyaline, veins and stigma castaneous.

Head ( Fig. 9 ). Mandible with five apical teeth, uppermost tooth as large as subupper ( Fig. 10 ). Median lobe of clypeus angulate, median carina complete. Length of first four antennal segments in ratio of 15:7:9:11 ( Fig. 11 ). Frons coriaceous and punctate. WH 1.00x LH; WF 0.62x WH; WF 1.18x HE; OOL 1.20x WOT; frontal angle of ocellar triangle acute; distance from posterior ocelli to vertex crest 0.67x DAO. Vertex straight; corner rounded; temple parallel. VOL 0.53x HE.

Mesosoma ( Fig. 9 ). Dorsum of thorax coriaceous and punctate. Notaulus convergent, wide posteriorly. Parapsidal furrow straight, short and on posterior 0.75x of mesoscutum. Scutellar groove shallower than scutellar pit. Propodeal disc 1.87x as wide as long, with five discal and pair of lateral carinae, without additional carinae beside median one; median carina complete and straight; paramedian incomplete, medially convergent and posteriorly divergent; lateral discal carina incomplete, arched, wholly convergent, not touching paramedian carina; lateral carina complete, followed for shallow linear depression; space among discal carinae striate; lateral space on discal carinae coriaceous; declivity coriaceous with median carina; propodeal side strigulate. Mesopleuron ( Fig. 12 ) with upper fovea subrounded; lower fovea elongate and closed, middle area as wide as anterior area, upper margin wholly outlined medially. Fore femur 2.35x as long as wide.

Genitalia ( Fig. 13–15 ). Paramere slender, about as long as basiparamere; apex narrow and rounded; dorsal margin convex; ventral margin straight; base concave, developed dorsally. Appendicular process of cuspis with base width 1.0x process width; apex rounded and touching transversal portion of cuspis. Aedeagus apex higher than cuspis apex in lateral view, median portion with distinct callus.

Material examined. Holotype. Male. PERU, [Loreto], Iquitos, Rio Napo, Rio Sucuraji , ACEER, Foundation Camp , lowland rain for[est], 27–29.XII.1997, M[alaise] t[rap], M. V. L. Barday col. ( CNCI) . Paratype. 1 male, same data as type ( CNCI) .

Distribution. Peru.

Etymology. The specific epithet from Latin refers to the callus in median portion of aedeagus.

Remarks. This species is similar to R. quinquilineatus in having the vertex straight, notaulus convergent, scutellar groove shallower than scutellar pit, propodeal disc with five discal carinae without additional carinae beside median one, paramedian carina incomplete, medially convergent and posteriorly divergent, lateral space on discal carinae coriaceous, mesopleuron with upper fovea subrounded and lower fovea elongate, closed and wholly outlined medially, paremere slender, about as long as basiparamere with apex rounded, dorsal margin convex, ventral margin straight and base concave, developed dorsally, appendicular process with base as wide as own process with apex rounded and touching transversal portion of cuspis. Rhabdepyris callosus , however, has mandible with five apical teeth, with uppermost as large as subupper, frons and dorsum of thorax coriaceous and punctate, frontal angle of ocellar triangle acute, temple parallel, lateral discal carina arched and convergent, propodeal side strigulate, paramere apex narrow, aedeagus apex higher than cuspis apex in lateral view and median portion with distinct callus, whereas R. quinquilineatus has mandible with four apical teeth, with uppermost larger than subupper, frons and dorsum of thorax polished and punctate, frontal angle of ocellar triangle almost right, temple slightly divergent, lateral discal carina straight and parallel, propodeal side coriaceous, paramere apex wide, aedeagus apex lower than cuspis apex in lateral view and median portion progressively narrow.

Figures

FIGURES 9–22. 9–15. Rhabdepyris callosus sp. nov. holotype. 9. Head and mesosoma in dorsal view; 10. Mandible in frontal view; 11. Antenna in frontal view; 12. Mesopleuron in frontal view; 13–15. Genitalia. 13. Ventral view; 14. Dorsal view; 15. Lateral view. 16–22. Rhabdepyris concavus sp. nov. holotype. 16. Head and mesosoma in dorsal view; 17. Mandible in frontal view; 18. Antenna in frontal view; 19. Mesopleuron in frontal view; 20–22. Genitalia. 20. Ventral view; 21. Dorsal view; 22. Lateral view. (scale bar = 250µm).