Rhabdepyris concavus 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 : 27-28

Rhabdepyris concavus Stein & Azevedo , New Species

( Fig. 16–22 )

Diagnosis. Propodeal disc with five discal carinae, withuot a pair of additional carinae beside median one. Paramedian carina wholly convergent. Paramere apex angularly concave. Aedeagus apex as high as cuspis apex in lateral view, median portion progressively narrow.

Description. Holotype. Male. Body length 4.92 mm. LFW 3.05 mm. Body and coxae black; mandible, antenna and mid femur castaneous; palpi, tegula, fore femur, tibiae and tarsi light castaneous; scape and hind femur dark castaneous; wings subhyaline, veins and stigma light castaneous.

Head ( Fig. 16 ). Mandible with five apical teeth, uppermost tooth as large as subupper ( Fig. 17 ). Median lobe of clypeus angulate, median carina complete. Length of first four antennal segments in ratio of 15:6:10:9 ( Fig. 18 ). Frons coriaceous and punctate. WH 0.92x LH; WF 0.62x WH; WF 1.19x HE; OOL 1.32x WOT; frontal angle of ocellar triangle acute; distance from posterior ocelli to vertex crest 0.67x DAO. Vertex straight; corner rounded; temple parallel. VOL 0.74x HE.

Mesosoma ( Fig. 16 ). Dorsum of thorax coriaceous and punctate. Notaulus convergent, wide posteriorly. Parapsidal furrow straight, short and on posterior half of mesoscutum. Scutellar groove shallower than scutellar pit. Propodeal disc 1.62x 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, wholly convergent; 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 coriaceous. Mesopleuron ( Fig. 19 ) with upper fovea subrounded; lower fovea elongate and closed, middle area as wide as anterior area, upper margin wholly outlined medially. Fore femur 2.44x as long as wide.

Genitalia ( Fig. 20–22 ). Paramere wide, longer than basiparamere; apex wide and angularly concave; dorsal margin inconspicuously convex; ventral margin convex; base about rounded. Appendicular process of cuspis with base width 1.0x process width; apex rounded and surpassing transversal portion of cuspis. Aedeagus apex as high as cuspis apex in lateral view, median portion progressively narrow.

Material examined. Holotype. Male. COSTA RICA, [San José], 500 m Braulio Carrello N[ational] P[ark], primary forest, 10.IV.1985, s. s., Masner & Goulet col. ( CNCI) . Paratypes. 3 males, same data as type ( CNCI). ECUADOR, Esmeraldas , 1 male, Blisa Biol [ogical] Station , 0 o 34'N 79 o 71'W, 500 m, 28.IV– 10.V.1996, FIT, P. Hibbs col. ( CNCI); Pichincha , 1 male, Rio Palenque , 21–25.II.1976 ( CNCI); Napo , 1 male, Km 11.1 Sarayacu , Loreto R [oa]d, 1200 m, cloud forest, 20.VII.1994, feces trap, F. Genier col. ( CNCI); Pastaza , 1 male, 22 km SW Pujo , 200 m, forest, 14–16.VII.1976, S. & J. Peck col. ( CNCI). BOLIVIA, Cochabamba , 3 males, Villa Tunari , 16 o 54'55''S 65 o 22'06''W, 15.III.2001, M[alaise] t[rap], H. Heider col. ( CNCI) ; 1 male, 109 km E Cochabamba, Villa Tunari road, 17 o 8'84''S 65 o 42'49''W, 1480 m, FIT, 1–6.II.1999, R. S. Hanley col. ( CNCI); La Paz , 1 male, Chulumani, Apa Apa , 16 o 22'S 67 o 30'W, 1800 m, 1–4.V.1997, s. s., B-09, L. Masner col. ( CNCI) .

Distribution. Costa Rica, Ecuador and Bolivia.

Etymology. The specific epithet from Latin refers to the paramere apex, which is concave.

Variation. Corner of head subangulate; scutellar groove as deep as scutellar pit.

Remarks. It is similar to R. luteipennis by having mandible with five apical teeth, uppermost as large as subupper, frons and dorsum of thorax coriaceous and punctate, frontal angle of ocellar triangle acute, vertex straight, temple parallel, scutellar groove as deep as scutellar pit, propodeal disc with five discal carinae and a pair of lateral carinae without additional carinae beside median one, paramedian carina incomplete, lateral discal carina not touching paramedian carina, lateral space on discal carinae coriaceous, propodeal side coriaceous, mesopleuron with upper fovea subrounded and lower fovea elongate, closed and wholly outlined, paramere wide with ventral margin convex, appendicular process with base as wide as own process and apex surpassing transversal portion of cuspis, aedeagus as high as cuspis apex in lateral view. Rhabdepyris concavus , however, has the notaulus convergent, the paramedian carina wholly convergent, the lateral discal arched and convergent, the paramere longer than basiparamere with apex wide and angularly concave, the dorsal margin inconspicuously convex and base about rounded, the appendicular process with apex rounded, and the aedeagus median portion with distinct callus, whereas R. luteipennis has the notaulus straight, the paramedian carina divergent posteriorly, lateral discal straight and convergent posteriorly, the paramere shorter than basiparamere with apex narrow and rounded, the dorsal margin convex and base concave, developed dorsally, appendicular process apex angulate, and aedeagus median portion abruptly 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).