New species of Porphyrochroa Melander (Diptera: Empididae) from Paraná, Brazil and key to Brazilian species from southern and south-eastern Brazil Author Mendonça, Mirian Nascimento text Journal of Natural History 2010 2010-02-22 44 9 - 10 615 624 http://dx.doi.org/10.1080/00222930903437333 journal article 10.1080/00222930903437333 1464-5262 4590756 Porphyrochroa atlantica ( Figures 1 A–I, 2, 3) Diagnosis Porphyrochroa atlantica sp. nov. differs from all other studied species by the tergite 7 in the form of an arrow posteriorly. Figure 1. Porphyrochroa atlantica sp. nov. , holotype male: (A) tergites 6–8, dorsal view; (B) sternites 6–8, dorsal view; (C) terminalia, lateral view; (D) ejaculatory apodeme, anterior view; (E) hypandrium and phallus, lateral view; (F) epandrium, lateral view; (G) hypandrium, posterior view; (H) subepandrial sclerite, ventral view; (I) cercus, dorsal view. Abbreviations: a cerc, anterior cercus; ej apod, ejaculatory apodeme; goncx apod, gonocoxal apodeme; hypd, hypandrium; p cerc, posterior cercus; ph, phallus; ST, sternite; T, tergite. Description Male. Body length 2.9 mm ; wing length 2.7 mm . Head shiny dark-brown, with metallic green lustre in diverse angles of incident light. Eyes dichoptic. Frons and face shiny dark-brown. Frons slightly wider than anterior ocellus width, subparallel-sided, with three pairs proclinate setae. Face slightly longer and wider than frons width. Proboscis yellow, length equal to height of head. Palpus light-brown, with one small and almost apical seta. Ocellar tubercule with vitreous yellow ocellus; two proclinate ocellar setae; two proclinate postocellar setae. Antenna brown, with conspicuous grey pruinescence; scape and pedicel medially verticillate; flagellum about four times longer than scape and pedicel combined. Postcranium shiny brown, with distinct brown setae and little grey pruinescence; a pair of proclinate vertical setae; postocellar setae distinct, with dorsal stronger. Gena and postgena with grey pruinescence. Thorax shiny dark-brown, with metallic green lustre in diverse incident angles of light and conspicuous postsutural light-grey pruinescence. Thoracic setae: 4 ktg; 4 ap sctl; 1 pprn; 1 prepst; 3 acr; 4 dc; 1 p spal; 1 spal; 1 pal; 1 npl. Legs yellow with distinct and short setae. Wing hyaline with conspicuous pterostigma; anal lobe wide; R 2+3 curved ( Figure 4A ). Halter light-brown. Abdomen shiny brown, with metallic green lustre in diverse angles of incident light. Sternites brown. Tergite 7 in arrow format posteriorly and with pair of posteroventral protuberances ( Figure 1A ); tergite 8 concave posteriorly with few setae confined posterolaterally ( Figure 1A ); sternite 7 wider than long ( Figure 1B ); sternite 8 sub-square ( Figure 1B ). Terminalia: epandrium digitiform ( Figure 1F ). Hipandrium without setae with apex narrow ( Figure 1E,G ). Cercus elongate with narrower superior projection in dorsal view ( Figure 1I ); ejaculatory apodeme with four projections in anterior view ( Figure 1D ); subepandrial sclerite as in Figure 1H . Figure 2. Wings of Porphyrochroa ( Diptera , Empididae ), holotype male; (A) Porphyrochroa atlantica sp. nov. 40 × ; (B) Porphyrochroa sierra sp. nov. 32 × . Figure 3. Geographical distribution of species of Porphyrochroa . • represents Porphyrochroa atlantica sp. nov. , Ɨ represents Porphyrochroa pacaraima Mendonça, Rafael and Ale-Rocha , Δ represents Porphyrochroa sierra sp. nov. Female. Unknown. Distribution Brazil ( Paraná ). Type material Holotype . Male : Antonina – PR , Reserva Sapitanduva , Brasil , 3 October 1986 , Lev. Ent. PROFAUPAR, Lâmpada \ Holotipo male Porphyrochroa atlantica sp. nov. ( DZUP ). Paratypes . Antonina – PR , Reserva Sapitanduva , Brasil , 2 October 1986 , Lev. Ent. PRO- FAUPAR, Lâmpada ( 1 male , DZUP ) ; 5 October 1986 ( 1 male , DZUP ) ; 1 December 1986 ( 1 male , DZUP ) ; 2 December 1986 ( 1 male , DZUP ) ; Telêmaco Borba – PR , Reserva Samuel Klabin , Brasil , 1 December 1986 , Lev. Ent. PROFAUPAR, Malaise ( 1 male , DZUP ) . Holotype condition: right hindleg without tarsi; left wing mounted on microslide in Canada balsam; abdomen within microvial with glycerin. Microslide and microvial pinned along with the specimen. Etymology Atlantica refers to the Atlantic forest, where this species was collected.