Porphyrochroa simplex , Mendonça, Mirian Nascimento, Rafael, José Albertino & Ale-Rocha, Rosaly, 2008

Mendonça, Mirian Nascimento, Rafael, José Albertino & Ale-Rocha, Rosaly, 2008, Revision of the Brazilian Amazon Basin species of Porphyrochroa Melander (Diptera: Empididae), Zootaxa 1859, pp. 1-39: 31-34

publication ID

http://doi.org/ 10.5281/zenodo.183631

persistent identifier

http://treatment.plazi.org/id/03AF87B5-A47A-1854-FF36-FCCBD24EFD74

treatment provided by

Plazi

scientific name

Porphyrochroa simplex
status

sp. nov.

Porphyrochroa simplex  sp. nov.

(Figs. 16 a –i; 19 f; 20)

Diagnosis: P. simplex  sp. nov. Is closely related to P. manauara  sp. nov. in the semi-circular shape of the epandrium, and the widespread hypandrial setae. It differs from the latter due the presence of a lateral anterior projection on sternite 8.

Description. Male ( Fig. 21View FIGURE 21): body length 3.2 mm; wing length 2.5 mm.

Frons and face shiny brown. Frons slightly narrower than width of anterior ocellus, sides subparallel, with one slender seta. Face slightly longer than frons and about twice width of frons. Proboscis light-yellow, length equal to height of head. Palpus yellow, with one small and almost apical seta. Ocellar tubercule with light-yellow ocellus; two ocellar setae; two postocellar setae. Antenna with scape and pedicel yellow and flagellum brown; scape and pedicel medially verticillate; flagellum about four times longer than scape and pedicel combined. Postcranium shiny brown, with distinct gray pruinescence; postcranial setae absent or broken (not seen in any paratypes); one pair of parallel vertical setae; postocellar setae distinct, arranged in complete single series. Gena and postgena with brown setae. Thorax shiny brown, except pprn lobe yellow with conspicuous postsutural gray pruinescence. Thoracic setae: 3 slender ktg; 4 sctl, larger internal pair; 2 aprn; 1 prepm; 1 pprn; 2 acr; 4 dc, posterior larger; 1 spal presut; 1 psut spal; 2 npl; 1 pal. Foreleg yellow, mid and hind legs with coxae, trochanters and basal fifth of femora yellow, remaining brown; tarsi yellow; hind tibia and basal tarsomere with long dorsal setae. All legs with short distinct setae. Wing hyaline, with apical spot and inconspicuous pterostigma; anal lobe wide ( Fig. 19View FIGURE 19 f). Halter brown. Abdomen shiny brown, with metallic blue luster in diverse light incidence angles. Sternites brown. Tergite 7 with pair of posteroventral protuberances (Fig. 16 a); tergite 8 with lateral projection and smaller than former ones (Fig. 16 a); sternite 7 concave laterally, in dorsal view (Fig. 16 b), and inclined in lateral view (Fig. 16 c); sternite 8 wide and with lateral anterior projection (Fig. 16 b). Terminalia: hypandrium with projection at apex and with eight setae posteriorly (Figs. 16 d; g); epandrium semi-circular (Fig. 16 e). Cercus elongate, with ventral projection in lateral view (Fig. 16 d); dorsal view represented as in Figure 16 h. Ejaculatory apodeme with three projections in anterior view (Fig. 16g); subepandrial sclerite with wrinkle at arm’s apex (Fig. 16 i).

Female: Unknown.

Distribution: BRAZIL (Amazonas).

FIGURE 16. Porphyrochroa simplex  sp. nov., holotype male: a, Tergites 6–8, dorsal view; b, Sternites 6–8, dorsal view; c, Terminalia, lateral view; d, Hypandrium, phallus, cercus and subepandrial sclerite, lateral view; e, Epandrium, lateral view; f, Hypandrium, posterior view; g, Ejaculatory apodeme, anterior view; h, Cercus, dorsal view; i, Subepandrial sclerite, ventral view. Abbreviation: a cerc, anterior cercus; cerc, cercus; ej apod, ejaculatory apodeme; goncx apod, gonocoxal apodeme; hypd, hypandrium; p cerc, posterior cercus; ph, phallus; sbepand scl, subepandrial sclerite; ST, sternite; T, tergite.

Type material: Holotype male: BRAZIL, Amazonas, Manaus, PDBFF-WWF, Proj.: Bert Klein / i. 1985, Malaise / Reserva 1210 / Holotype male Porphyrochroa simplex  ( INPA). Paratypes: BRAZIL, Amazonas, FIGURE 17. Porphyrochroa xavieri  sp. nov., holotype male: a, Tergites 6–8, dorsal view; b, Sternites 6–8, dorsal view; c, Terminalia, lateral view; d, Hypandrium, phallus, cercus and subepandrial sclerite, lateral view; e, Epandrium, lateral view; f, Ejaculatory apodeme, anterior view; g, Hypandrium, posterior view; h, Cercus, dorsal view; i, Subepandrial sclerite, ventral view. Abbreviation: a cerc, anterior cercus; cerc, cercus; ej apod, ejaculatory apodeme; goncx apod, gonocoxal apodeme; hypd, hypandrium; p cerc, posterior cercus; ph, phallus; sbepand scl, subepandrial sclerite; ST, sternite; T, tergite; vpc, ventral projection of cercus.

Manaus, PDBFF-WWF, Proj.: Bert Klein, i. 1985, Malaise, Reserva 1112 (1 male, INPA); xii. 1985 (1 male, INPA); xii. 1985, Malaise, Reserva 1113 (1 male, INPA); iii. 1986 (1 male, INPA); iv. 1981, Malaise, Reserva 1208 (1 male, INPA); i. 1985 (2 male, MZUSP); iv. 1985 (1 male, INPA); vi. 1985 (1 male, INPA); ii. 1986 (1 male, INPA); xi. 1986 (1 male, INPA); iii. 1987 (1 male, INPA); i. 1985, Malaise, Reserva 1210 (1 male, INPA); ii. 1985 (2 male, MZUSP); iv. 1985 (1 male, INPA); vi. 1985 (1 male, INPA); ix. 1985 (2 male, INPA); iii. 1986 (1 male, INPA); i. 1985, Malaise, Reserva 1301 (1 male, INPA); vii. 1985 (2 male, INPA); xi. 1985 (1 male, INPA); xii. 1985 (1 male, INPA); iii. 1986 (3 male, MPEG); iv. 1986 (2 male, MPEG).

Holotype condition: postocellar setae, vertical, postcranial and prepm broken; left wing mounted on microslide in Canada balsam; abdomen within microvial containing glycerin. Microslide and microvial pinned and attached to specimen.

Variation: one specimen with a darker brown shade.

Etymology: from Latin simplex  = simple. It makes allusion to the simplicity of the structures of the terminalia, specifically the final abdominal sclerites, epandrium, hypandrium and cercus.

INPA

Instituto Nacional de Pesquisas da Amazonia

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Empididae

Genus

Porphyrochroa