Paraleia denticulata, 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 : 12-15

Paraleia denticulata , sp. n.

( Figs. 7–8 , 18–19 )

Diagnosis. Three ocelli. Wing with a pair of pretty well defined brown maculae at the mid and apex of the wing, plus a weaker marking distal to A1. Gonostyle widening to the apex, inner surface with a distal row of short spines and a long apical spine, gonocoxite projection distal to the base of gonostyle with an irregular row of short spines and scattered short apical spines. Female sternite 8 with apical border mesally depressed laterally, with short spines distally.

Material examined. Holotype 3, COLOMBIA, State of Cundinamarca, PNN Sumapaz Bocatoma, Cerro El Zapato, 04°14’N 74°12’W, 3,560 m, 06–20.xi.2002, M3444 (A. Patiño Leg.) (IAvH). Paratypes 23 same data as holotype (IAvH); 13 idem, but 18.xi–04.xii.2002, M3443 ( MZUSP); 43 2Ƥ idem, but 02–17.i.2003, M3442 (IAvH/ MZUSP).

Description. Male. Head. Vertex brown, with scattered, whitish long bristles. Mesal ocellus small, lateral ocelli close to but not touching eye margin. Frons and clypeus light brown, covered with setulae; labella yellow; maxillary palpus whitish yellow, with five palpomeres, last palpomere almost twice length of penultimate, first two palpomeres short. Scape and pedicel of similar lenght, yellow, first flagellomere lighter on the basal third, second and third flagellomeres brown with lighter basal fourth, remaining flagellomeres brown. Thorax. Pronotum yellow, with five strong yellow setae, four of them stronger dorsally and one smaller ventrally. Scutum brown, dark yellow on anterior corners, above base of wing, and along dorso-centrals; scutum covered with scattered short setae, stronger dorso-centrals and supra-alars. Scutellum yellow, brownish at margins, with four scutellar bristles. Pleural sclerites brown, bare. Pleural membranae yellowish. Haltere whitish, setose. Legs yellow, mid and hind coxae with a brown mesal macula. Tibial spurs 1:2:2, brown, spurs almost twice tibia diameter at apex. Some few dark apical setae on fore tibia, mid and hind tibiae with long, strong black setae. Wing ( Fig. 7 ). Length, 4.5 mm, width, 1.5 mm. Membrane without macrotrichia, yellowish, with one brownish macula across mid of wing and an additional, less well defined mark close to apex, a third inconspicuous mark posterior to A1. C extending slightly beyond R5 apex; sc-r present; Sc complete, ending in C at wing basal third. R1 less than twice r-m length, reaching C at distal third of wing; Rs nearly transverse; R5 reaching C close to wing tip, nearly straight; r-m almost longitudinal, about six times length of first sector of Rs. M1+2 shorter than r-m length; M1 and M2 twice length of M1+2; CuA depressed midway to apex. M1, M2, M4, second sector of CuA setose and A1 setose. Abdomen. Abdomen covered with numerous yellowish setulae. Tergites 1–7 brown, tergites 2–4 lighter than remaining; sternites 1–4, whitish yellow mesally, brownish laterally; sternites 5–6, brownish; sternite 7, brown. Terminalia yellowish basally, brownish apically, tergite 9 yellow, with a brown mesal, transverse band. Terminalia ( Fig. 18 ). Gonocoxite extension distal to base of gonostyle with an irregular row of short spines along basal two thirds, scattered short spines at apex, as well as a single, subapical spine; gonostyle long widening to the apex, inner surface with a row of short spines along distal margin, besides a long, subapical spine; aedeagus thin, bifid at distal two thirds; parameres well developed, more sclerotized at apex, involving aedeagus; cercus covered with setulae; tergite 9 weakly sclerotized, with a shallow mesal depression at distal margin.

Female. As male, except as follows. Wing ( Fig. 8 ). Length, 4.6 mm, width, 1.6 mm. Wing maculae slightly less conspicuous. All coxae with a brown mesal maculae. Abdominal tergites 2–4 brown with a light transverse, distal stripe. Terminalia ( Fig. 19 ). Terminalia yellow, sternite 8 wide, distal margin wide, with a distal incision, with some brown, long setae along distal margin, and some short spines at laterals; cercus almost as long as rest of terminalia, basal cercomere longer than apical one.

Etymology. The specific epithet is Latin adjective denticulatus, meaning bearing small teeth, in reference to the short spines at apex of gonocoxite projection.

Comments. Some specimens have a more inconspicuous maculae and A1 weaker. The male gonocoxite and gonostyle of this species are in somewhat similar to those P. bolivari sp. n. Paraleia denticulata sp. n. has a single subapical spine at gonocoxite apex and a gonostyle widening to the apex, with an irregular row of short spines, as well as a single subapical one ( Fig. 18 ). On the other hand, P. bolivari sp. n. doesn’t have the subapical spine at gonocoxite apex and shows a long gonostyle, with a row of short spines and a single long apical one ( Fig. 13 ).

Figures

FIGURE 13. Male terminalia of Paraleia bolivari sp. n., ventral view. Paratype. Scale 0.1 mm.

FIGURE 18. Male terminalia of Paraleia denticulata sp. n., ventral view. Paratype. Scale 0.1 mm.

FIGURE 19. Female terminalia of Paraleia denticulata 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.