Neoempheria Osten Sacken, 1878

Amaral, Edna Maria, Oliveira, Sarah Siqueira & Falaschi, Rafaela Lopes, 2022, A hidden Amazonian fauna: first record of Neoempheria bilobata Edwards, 1940 (Diptera: Mycetophilidae) in Pará State, Brazil, EntomoBrasilis (e 988) 15, pp. 1-7 : 2-3

Genus Neoempheria Osten Sacken, 1878

Neoempheria bilobata Edwards, 1940: 113 , Figure 3b (M terminalia), pl. 1, Figure 11 (wing). Type-locality: Brazil, Santa Catarina, Seara, Nova Teutônia. Distr.: Brazil (Santa Catarina). Ref.: AMORIM & OLIVEIRA 2013: 63 (comments on types and label data), Figure 173 (habitus). Holotype male, NHM.

Redescription

Material examined. 1 Male, Belém, PA, Brazil, Campus de Pesquisa do Museu Paraense Emílio Goeldi , Mata secundária [Field research area of the MPEG, secondary forest], 24.IV.2019, criado em cogumelo [reared in mushroom], F. S. Carvalho-Filho [ MPEG] ; 1 Female, same data as male specimen [ MPEG] .

Male ( Figures 2 , 3A , 4-6 ):

Head ( Figures 2 A-B): Vertex brownish, with scattered setae, yellowish around eyes. Two ocelli centralized in the head with a black occiput. Frons light brown. Face and clypeus yellowish, covered with setulae. Labellum yellowish, ventrally darker; maxillary palpus brownish, apical segment lighter, segments 3-5 of similar length, first two segments short. Antenna shorter than thorax, scape and pedicel yellow, rounded, with apical setae dorsally. Flagellomeres slightly longer than wide, flagellomeres 1-2 yellow, 3-14 light brown.

Thorax ( Figures 2 A-B): Yellow, with an oblique dark stripe, extending from the base wing across proepimeron, to the base of the front coxa. Pronotum yellow, with strong, long, black bristles. Proepimeron brownish posteriorly, bare. Anepisternum yellow, with a large transverse brown macula on posterior two-thirds, bare. Katepisternum yellow, with a large transverse brown macula across the two basal thirds, bare. Mesepimeron yellow, posterior margin brownish, bare. Laterotergite yellow, except for a brownish straight band following the anterodorsal margin, bare. Mediotergite yellow ventrally, a brownish triangular mark dorsally, bare. Mesoand metapleura yellow, entirely bare. Scutum yellow, with five brown stripes fusing posteriorly, covered with short and long setae, a pair of stronger dorsocentral and a pair of stronger dorsolateral setae posteriorly. Scutellum yellow, with a pair of long scutellar bristles and a few scattered setulae. Legs yellow, except for a brownish macula along the length of the hind femur, covering the surface laterally; forecoxa with some brownish maculae anteriorly, with strong setae in a line along posterior and ventral margins; hind femur compressed laterally; tibial setae regularly aligned; tibial spur I almost twice the length of tibial diameter at apex, tibial spurs II and III almost four times the length of tibial diameter at the apex. Halter stem whitish, knob black, setose.

Wing ( Figure 3A ): Wing venation and color pattern as in Figure 3A .

Abdomen ( Figures 2 A-B): Tergites 1-6 yellow, with a trapezoid brown macula medially and a yellow median straight line; tergite 7 yellow. Sternites 1, 2, and 7 yellow; sternites 3-5 with brown areas on its surface.

Terminalia ( Figures 4-6 ): Yellow, with a brown gonocoxite. T9 weakly developed and sclerotized, bilobed at apex, with a few setae distally. Gonocoxite with two main projections, a large dorsal and brown projection extending beyond apex of gonostylus, bifid apically, densely covered with setae on the external face, apex bifurcation bare, beside an inner projection, finger-like, half the length of the external projection, covered with setulae. Gonostylus yellow, well developed, with two main elongated projections, external part of one more densely setose, and an inner branch, bare, curved medially, with a spun-like with four spines on inner margin. Gonocoxal apodeme short, sclerotized; parameres strongly developed, membranous, bare; cercus and S10 rounded, with some small setae distally, well developed.

Female ( Figures 3B , 7-10 ). Similar to male, except as follows: basisterno brownish, hind coxa with brownish maculae; abdominal tergite 1 brown, with an anterior straight yellow band, tergites 2-5 brown, with a posterior straight brown band, tergite 6 brown, with posterior corners brown, tergite 7 brown. Sternites 1-2, 6-7 yellow, sternites 3-5 brown with posterior corners yellow. Wing venation and color pattern as in Figure 3B . Terminalia ( Figures 8-10 ): Yellow. Sternite 8 covered with setae, inner margin slightly concave; tergite 8 covered with microtrichia, bare of setae; genital fork well developed, reaching segment 7 anteriorly; cercus short, twosegmented, apical cercus (cerc 2 or cercus two) rounded, approximately a quarter of the length of the basal cercus (cerc 1, basicercus, or cercus one).

Distribution: Brazil (Pará, Santa Catarina) ( Figure 1 ).

Figures

Figure 1. Map of the Brazilian biomes.

Figure 2. Neoempheria bilobata, male (Belém, Pará). A. Habitus, dorsal view. B. Habitus, lateral view.

Figure 3. Neoempheria bilobata (Belém, Pará). A. Male wing. B. Female wing. Abbreviations: C, costal vein; CuA, anterior branch of cubital vein; cup, posterior branch of cubital vein; h, humeral crossvein; M 1, first branch of media; M 2, second branch of media; M 4, fourth branch of media; M1+2, medial vein; R1, anterior branch of radius; R2+3, second branch of radius; R4+5, third branch of radius; r-m, radial-medial crossvein; Rs, radial sector; Sc, subcostal vein; sc-r, subcostal-radial crossvein.

Figure 4. Neoempheria bilobata, male (Belém, Pará). A. Dorsal view of the male terminalia. B. Illustration of the dorsal view of the male terminalia. Abbreviations: cerc, cercus; ddp, dorsal distal projection; gonst, gonostylus; pm, paramere; st, sternite; tg, tergite.

Figure 5. Neoempheria bilobata, male (Belém, Pará). A. Ventral view of the male terminalia. B. Illustration of the ventral view of the male terminalia. Abbreviations: ddp, dorsal distal projection; goncx apod, gonocoxal apodeme; gonst, gonostylus; pm, paramere; tg, tergite.

Figure 6. Neoempheria bilobata, male (Belém, Pará). A. Lateral view of the male terminalia. B. Illustration of the lateral view of the male terminalia. Abbreviations: ddp, dorsal distal projection; goncx apod, gonocoxal apodeme; gonst, gonostylus; pm, paramere; st, sternite; tg, tergite.

Figure 7. Neoempheria bilobata, female (Belém, Pará). A. Habitus, dorsal view. B. Habitus, lateral view.

Figure 8. Neoempheria bilobata, female (Belém, Pará). A. Dorsal view of the female terminalia. B. Illustration of the dorsal view of the female terminalia. Abbreviations: cerc 1, cercus one of female terminalia; cerc 2, cercus two of female terminalia; spmth, spermatheca; tg, tergite.

Figure 9. Neoempheria bilobata, female (Belém, Pará). Illustration of the ventral view of the female terminalia. Abbreviations: cerc 1, cercus one of female terminalia; cerc 2, cercus two of female terminalia; gen fk, genital fork; st, sternite; tg, tergite.

Figure 10. Neoempheria bilobata, female (Belém, Pará). A. Lateral view of the female terminalia. B. Illustration of the lateral view of the female terminalia. Abbreviations: cerc 1, cercus one of female terminalia; cerc 2, cercus two of female terminalia; st, sternite; tg, tergite.