Laurenceomyia peixotoi Santos, 2021

Santos, Claudiney Biral Dos, Brazil, Reginaldo Peçanha & Pinto, Israel De Souza, 2021, New species of Boreofairchildia Wagner & Stuckenberg and Laurenceomyia Wagner & Stuckenberg (Diptera: Psychodidae: Bruchomyiinae) from Brazil, Zootaxa 4974 (2), pp. 391-395 : 392

Laurenceomyia peixotoi Santos , Brazil & Pinto sp. nov.

( Figs. 1–4 )

Diagnosis. Male. Eyes separated by approximately 3.0 facet diameters, wing with Sc ending after level of radial fork, reaching C, cross vein r-m complete, reaching M, M 2 incomplete, not reaching M 1, gonocoxite with apical projection tuber and spiny apex, gonostylus forked with tubercle on the inner face and spatulated aedeagus.

Description. Male. Length from thorax to the posterior end of terminalia: 4.6 -mm. Head. Sub-circular slightly flattened dorsoventrally. Eyes separated by approximately 3.0 facet diameters: frontal area with 18 seta alveoli. Scape irregular, pedicel sub-spherical. Antenna incomplete, only five flagellomeres present; length of flagellomeres 2+3 combined 0.8 times the length of flagellomere 1; pair of ascoids in flagellomeres presents. Palpus formula (1+2:3:4:5) = 0.9: 1.7: 2.2: 4.5. Sensilla absent on second and third segment of palpus; apical segment striated (fig. 1). Wing. Length: 3.8 mm. Sc ending after level of radial fork, reaching C; cross vein sc-r reaching R 1; R 2+3 shorter than R; base of R 5 reaching R 4; cross vein r-m complete, reaching M: M 2 incomplete, not reaching M 1 (fig. 2).

Terminalia. Hypandrium fused to gonocoxites; gonocoxite cylindrical with apical projection in tuberculum with apical spines. Gonostylus bifurcate, length equivalent to gonocoxite, little tuberculum on the inner face. Presence of the semi foliaceous spines on lower surface, extending from the base up to midpoint. A pair of parameres short with salience ventral. Aedeagus spatulated, extending beyond the length of gonocoxites. Ejaculatory duct cylindrical with apical collar and sclerotized with truncate apex in dorsal view with marginal setae (fig. 3). Cercus broadly round in lateral view, connected ventromedially by narrow sclerotized band. Epandrium rectangular in ventral view. (fig. 4).

Etymology. The species is named after Dr. Alexandre Afranio Peixoto (in memorian) in honor of his contributions to the study of Psychodidae from Brazil.

Material examined. Holotype male, Brazil, Acre: Brasiléia, Ramal 4 (S 10° 56’ 43”, W 68° 42’ 13”), 12.ii.2016, Pinto I.S. col. ( MZUZP)

Remarks. Laurenceomyia peixotoi Santos , Brazil & Pinto sp. nov. Morphologically resembles species that have gonocoxite with apical spines also seen in Laurenceomyia capixaba (Santos, Falqueto & Alexander) , Laurenceomyia dampfianus (Alexander) , Laurenceomyia pilipes (Tonnoir) , and Laurenceomyia similis (Wagner & Stuckenberg) . The distal bifurcation of the radial vein is shared by these species.

Laurenceomyia peixotoi sp. nov. can be distinguished from L. capixaba by presenting only one tuberculum on the gonocoxite while this species has two and L. dampfianus has no tuberculum on the gonocoxite. In L. pilipes the difference lies in the gonostylus, while in L. similis the difference is in the parameres and gonostyli. This new species is distinguished from other Laurenceomyia species by the bifurcated aspect of gonostylus and the presence of a slight tuberculum on its inner face.

Figures

FIGURES 1–4. Laurenceomyia peixotoi Santos, Brazil & Pinto, sp. nov., Holotype male. 1, Head, frontal view; 2, Wing; 3, Terminalia, dorsal view; 4, Epandrium, Cerci and Hypoproct, ventral view.