Paraleia nidorosa, Oliveira, Sarah Siqueira & Amorim, Dalton De Souza, 2012

Oliveira, Sarah Siqueira & Amorim, Dalton De Souza, 2012, Six new species of Paraleia Tonnoir (Diptera, Mycetophilidae): amphinotic elements at the northern range of the Andes, Zootaxa 3186, pp. 1-24 : 17

Paraleia nidorosa , sp. n.

( Figs. 10 , 21 )

Diagnosis. Three ocelli. Wing with a brown macula apically. Female sternite 8 rounded apically, a little depressed at inner margin dorsally, with long setae apically.

Material examined. Holotype Ƥ, COLOMBIA, State of Huilla, PNN Cueva de los Guácharos, Mun. Acevedo, 01°37’N 76°06’W, 2150 m, 15–19.xi.2003, M3788 (J. Lopes Leg.) (IAvH).

Description. Male. Unknown.

Female. Head. Vertex brownish, with scattered bristles. Three ocelli, mid ocellus small, lateral ones close to but not touching eye margin. Frons and clypeus yellow, covered with short setulae; labella yellow; maxillary palpus whitish yellow, five palpomeres, last palpomere almost twice length of penultimate, first two palpomeres short. Scape and pedicel subequal, yellow, with setulae; flagellomeres 1–4 with basal half yellow, distal half light brown, remaining flagellomeres light brown. Thorax. Thorax predominantly yellow. Pronotum yellow, with three strong bristles near posterior margin. Scutum yellow, with three longitudinal brownish bands, mesal band with a yellow narrow line anteriorly. Scutellum yellow, with four scutellar bristles. Mediotergite brownish, bare, remaining pleural sclerites yellow, bare, pleural membrane yellowish. Haltere with brownish knob and whitish pedicel, setose. Legs yellow, mid and hind tibiae with long, strong black setae. Tibial spurs 1:2:2, spur length almost twice tibial width at apex. Wing ( Fig. 10 ). Length, 4.0 mm, width, 1.3 mm. Membrane without macrotrichia, translucent, with a light brown, rather indefinite macula close to wing apex. C extending slightly beyond R5 apex; Sc complete, reaching C at wing basal third; sc-r absent; R1 about as long as r-m, reaching C beyond distal third of wing; first sector of Rs transverse; R5 reaching C close to wing tip, with a very gentle curve on distal half; r-m almost longitudinal, about six times length of first sector of Rs. M1+2 longer than r-m length; M1 and M2 almost twice M1+2 length; CuA nearly straight along its entire length. M1 and M2 with setae, M4, second sector of CuA and A1 apically with macrotrichia. Abdomen. Abdomen pubescent, covered with setulae. Tergites 1–7 brown. Sternites 1–3 yellow, sternites 4–6 yellow with brownish lateral margins, sternite 7 brownish; distal margin of sternite 8 rounded. Terminalia ( Fig. 21 ). Terminalia brownish, gonapophysis 8 rounded distally, not wide; cercus length subequal to that of rest of terminalia, basal cercomere longer than apical one.

Etymology. The specific epithet is Latin adjective nidorosus, meaning steam, in reference to the apical inconspicuous macula in the wing membrane.

Comments. Considering the other female species described here, differences in the wings and shape of the sternite 8 are enough to erect P. nidorosa sp. n. as a new species despite missing the male specimen. Paraleia nidorosa sp. n. shows the wing membrane with only a brown macula rather indefinite close to wing apex ( Fig. 10 ) and a female sternite 8 rounded apically, little depressed at inner dorsal margin, with long setae apically ( Fig. 21 ). Paraleia bolivari sp. n., P. fu m o s a sp. n., P. denticulata sp. n., and P. sharkeyi sp. n., besides the macula on the wing apex, show wing membrane patterned in other regions ( Figs. 4, 6, 8, 11 ) and Paraleia sp. has the wing hyaline ( Fig. 12 ). The distal margin of sternite 8 of P. bolivari sp. n. is round with fringe of setae, not depressed at inner dorsal margin ( Figs. 14 , 15 ); in P. f u m o s a sp. n. it is rounded with a fringe of long setae ( Fig. 17 ); in P. d e n - ticulata sp. n. it is wide with a distal incision, brown and long setae ( Fig. 19 ); in P. sharkeyi sp. n. ( Fig. 22 ) it has a deep lateral incision and is quite strongly setose; in Paraleia sp. is pointed with black setulae along its distal margin.

Figures

FIGURE 14. Female terminalia of Paraleia bolivari sp. n., lateral view. Paratype. Scale 0.1 mm.

FIGURE 15. Female terminalia of Paraleia bolivari sp. n., ventral view. Paratype. Scale 0.1 mm.

FIGURE 17. Female terminalia of Paraleia fumosa sp. n., lateral view. Paratype. Scale 0.1 mm.

FIGURE 19. Female terminalia of Paraleia denticulata sp. n., lateral view. Paratype. Scale 0.1 mm.

FIGURE 21. Female terminalia of Paraleia nidorosa sp. n., lateral view. Holotype. Scale 0.1 mm.

FIGURE 22. Female terminalia of Paraleia sharkeyi sp. n., lateral view. Paratype. Scale 0.1 mm.

FIGURES 3 – 12. Wings of Paraleia. 3. Paraleia bolivari sp. n., male paratype. 4. Paraleia bolivari sp. n., female paratype. 5. Paraleia fumosa sp. n., male paratype. 6. Paraleia fumosa sp. n., female paratype. 7. Paraleia denticulata sp. n., male paratype. 8. Paraleia denticulata sp. n., female paratype. 9. Paraleia tonnoiri sp. n., male holotype. 10. Paraleia nidorosa sp. n., female holotype. 11. Paraleia sharkeyi sp. n., female paratype. 12. Paraleia sp., female paratype. Scale 0.5 mm.