Ebenia fumata ( Wulp 1891 )

Domingos, Marcelo, 2024, Revision of the Neotropical Obscure Genus Ebenia Macquart 1846 (Diptera, Tachinidae, Dufouriini), Neotropical Entomology 53 (4), pp. 833-853 : 840

Ebenia fumata ( Wulp 1891) .

( Fig. 3 ).

Morinia fumata Wulp 1891: 261. References. Guimarães 1971: 110, catalogue – as an unplaced species of “ Ebeniini ”); O’Hara et al. (2020: 93, checklist of World Tachinidae – new combination as Ebenia ).

Type material examined Holotype ♂: “Holo-/ type”; “♂”; “Teapa,/ Tabasco./ Feb. H.H.S.”; “ Central America./ Pres. by/ F.D.Godman. / O.Salvin./ 1903–172.”; “B.C.A. Dipt.II./ Morinia / fumata,/ v.d. W.”; “ NHMUK 013933632 ”. Holotype in good condition .

Additional examined material COSTA RICA. Guanacaste: P.N. Rincón de la Vieja, Sect. Santa Maria, Send. Pailas, Agua Fria, 800 m, 10.xi.2001, 1 ♂, D. Briceño & Libre L., L.N_305475_392908 #65,644 ( MNCR).

Diagnosis. Eyes with very small and widely scattered setulae. Fronto-orbital plate dark silver pruinose. Postpedicel entirely dark brown. Facial ridge with setulae only at base. Prosternum with setulae. Thorax with silver pruinosity. Wing smoky; with vein R 4+5 with setulae about ¼ halfway to crossvein r-m. Costal spine poorly developed. Abdomen light brown with silvery pruinosity anteriorly on tergites 3 to 5.

Redescription of holotype male.

Coloration ( Fig. 3a–b, d ): Occiput with silver pruinosity. Head with dark silver pruinosity. Scape light brown and pedicel dark brown. Postpedicel dark brown. Arista dark brown, but proximal 1/5 light brown. Palpus yellowish. Labellum light brown, prementum shiny black. Scutum brownish, but presutural region and anterodorsal portion of postsutural region with brownish-silvery pruinosity; presutural region with five brownish-black vittae, the three central ones narrow and the two peripheral ones broad. Scutellum brownish. Wing smoky on apical region. Tegula and basicosta dark brown. Halter yellowish. Posterior spiracle light-brown. Legs brownish. Upper and lower calypters hyaline. Abdomen light brown with anterolateral silver pruinosity on tergites 3 to 5.

Head ( Fig. 3a–b, d ): Vertex about 0.12× head width in dorsal view. Width of parafacial, measured at distance between inner margin of eye and antennal insertion, 2 × height of gena. Fronto-orbital plate with setulae throughout its length. Frontal vitta narrowed dorsally. Eye about 0.9× the head height. Gena about 0.12 × eye height. Prementum about 0.5 × head height. Labellum developed, about 0.1x as long as prementum.

Thorax ( Fig. 3a, d ): Acrostichal setae 3 + 3 (first presutural seta weak). Dorsocentral setae 2 +2. Prosternum setulose. Wing. Costal spine poorly developed. Vein R 4+5 with setulae dorsally about ¼ halfway to crossvein and ventrally at base. Legs. Fore femur with posterodorsal and posteroventral rows of setae; fore tibia with 7 median anterodorsal, 1 posteroventral in distal third, 3 preapical, 2 anterodorsal and 1 posteroventral setae. Mid tibia with 3 anteroventral, 3 posteroventral setae on apical third; mid femur with anterodorsal setae on apical third, 2 preapical, and 2 posteroventral setae. Hind femur with posterodorsal and posteroventral rows of setae. Hind tibia with 2 long submedian anteroventral setae and 2 short apical setae, 4 preapical, 2 anterodorsal, and 2 posteroventral setae.

Abdomen ( Fig. 3a, d ): Syntergite 1 +2 with mid-dorsal longitudinal depression extending until ¼ to posterior margin. Syntergite 1+2 with at least 4 pairs of lateral marginal setae; tergite 3 with at least 4 pairs of lateral marginal setae and a pair of median marginal seta.

Female. Unknown.

Biology. Unknown.

Distribution. Mexico ( Tabasco) and Costa Rica ( Guanacaste, new record).

Figures

Fig. 3 Ebenia fumata (Wulp 1891), holotype male (NHMUK). A. Dorsal habitus. B. head, frontal view. C. labels; D. lateral habitus