Cluzobra accola, Amorim, Dalton De Souza & Oliveira, Sarah Siqueira, 2008

Amorim, Dalton De Souza & Oliveira, Sarah Siqueira, 2008, Eleven new species of the genus Cluzobra Edwards (Diptera, Mycetophilidae, Sciophilinae) from the Atlantic Forest of Brazil, Zootaxa 1920, pp. 1-28 : 6-8

Cluzobra accola , sp.n.

( Figs. 6 , 21–22 )

Diagnosis. Male terminalia elongate, syngonocoxite with a mesal suture and a pair of short spines on distal margin; gonostyles strongly sclerotized, triangular, slender towards the apex.

Material examined. Holotype ɗ, BRAZIL, State of Alagoas, Quebrangulo, Reserva Biológica Pedra Talhada, 36° 28’ 16” W 09° 19’ 08” S, 11–14.ix.2002, Penteado–Dias & eq. cols. Paratype. 1 ɗ, same data as holotype, but 08–11.ix.2002.

Description. Male. Head. Head brownish yellow, darker at vertex; mid ocellus absent, lateral ocelli closer to eye margins than ocellus diameter, ocellar area brown; front and clypeus yellowish, pubescent. Maxillary palpus brownish, palpomeres 1+4, increasing in length to apex; labella yellowish, sclerite of basal article brownish. Scape and pedicel rounded, whitish yellow, pubescent; flagellomeres whitish yellow, except for basal fourth, pubescent. Thorax. Pronotum yellowish, with some longer and other smaller setae. Scutum light brown, four longitudinal yellowish bands, intertwined by light brownish bands, smaller setae scattered and some stronger acrostical and dorsocentral bristles; scutellum light brownish, darker at posterior border, six stronger scutellar bristles and some smaller setae. Pleural sclerites light brownish, anepisternum, laterotergite and mediotergite brown. Anepisternum setose, katepisternum bare, laterotergite setose, mediotergite with a median and a pair of more lateral tufts of setae, lighter close to base of abdomen. Halter yellowish, pubescent. Legs. Legs mostly yellowish, brownish on coxae and femora basally; tibial spurs 1:2:2, light brown, spur length more than twice apex of tibiae. Wing ( Figure 6 ). Length, 2.8 mm. A more or less continuous brownish maculae around base of Rs, r–m, M1+2 and base of medial fork, and other maculae at apex of anal lobe, at distal eighth of wing (beyond the apex of R5), and a distinctive transverse band at level of apex of R1. Membrane with macro and microtrichia; humeral cell bare of macrotrichia; basal cell short, with scarce macrotrichia on membrane, only on distal half. Sc complete, short, reaching C at basal fourth of wing, much before origin of Rs; R1 long, reaching C at distal third of wing; R5 reaching C before apex of M1; C extending two fifth the distance between R5 and M1; r–m oblique, slightly longer than base of Rs; M1+2 longer than r–m; medial fork complete; M4 entirely absent; A1 very short, scarcely visible. Abdomen. Abdominais tergites 1–7 yellowish brown. S8 U–shape, T8 wide and short. Terminalia ( Figures 21–22 ). Terminalia elongated, yellowish brown. Syngonocoxite covering the entire ventral face of the terminalia, bearing a mesal suture across the entire plate, a pair of short spines at the distal margin on a small projection at each side, no projection of the gonocoxite ventrad to the insertion of the gonostyle. Gonostyle well sclerotized, triangular, slender to the apex, with no setae. Aedeagus with a pair of elongated anterior arms, distally with a short projection on the outer margin. T9 rectangular, elongated, with no mesal notch at distal margin. Cercus simple, elongated, with fine setae at apex.

Etymology. The name of this species is feminine and, because of its similarity to C. vicina Matile (which means neighbour), the Greek name accola (having the same meaning) is used in apposition.

Comments. The male terminalia of this species is very similar to that of the lanei – group, especially C. vicina Matile and C. variegata Matile , which have a shallow distal notch mesally on the syngonocoxite, with a single spine at the distal margin on each side. The shape of the gonostyle is sufficiently different from C. vicina to justify a separate species rank. Two males in poor condition from Caruaru, State of Pernambuco, belong to this species, but we decided to not to give them paratype status.

Figures

FIGURES 5 – 10. Wings of Cluzobra species. 5. Cluzobra triocellata, sp. n. 6. Cluzobra accola, sp. n. 7. Cluzobra lanei Edwards, specimen from Anastácio, State of São Paulo. 8. Cluzobra claripennis, sp. n. 9. Cluzobra papaveroi, sp. n. 10. Cluzobra coptolithus, sp. n., paratype from Recife, State of Pernambuco.

FIGURES 20 – 22. Male terminalia of Cluzobra species. 20. Cluzobra triocellata, sp. n., lateral view. 21. Cluzobra accola, sp. n., ventral view. 22. Same, syngonocoxite plate removed. Abbreviations: ae, aedeagus; ce, cercus; sg, syngonocoxite; gs, gonostyle; s 8, sternite 8; t 8, tergite 8; t 9, tergite 9.