Panava amazonica, Filho, Fernando Da Silva Carvalho & Esposito, Maria Cristina, 2011

Filho, Fernando Da Silva Carvalho & Esposito, Maria Cristina, 2011, Panava a senior synonym of Wulpisca, and description of new species of Panava and Dexosarcophaga (Bezzisca) from the Brazilian Amazon (Diptera, Sarcophagidae), Zootaxa 2808, pp. 49-56 : 51-53

Panava amazonica sp. nov.

( Figs. 1–7 )

Holotype. Male: “ Brasil Pará/ Serra Norte/ N1-Floresta/ 31.x–2.xi.1985 ”; “Armadilha Malayse [= Malaise trap]”; “ Brasil Pará/ F.F. Ramos [collector]”; “ MPEG DIP / 12182555 ”.

Male. Head. Parafacial and fronto-orbital plate with golden microtomentum; parafacial plate with short, fine setae all along eye margin. Frontal vitta reddish brown; frontal row with four bristles; one reclinate and two proclinate orbital bristles; outer vertical bristle fairly differentiated from postocular setae; inner vertical bristle slightly converging, about 2 x as long as frontal bristle. Gena and postgena with golden microtomentum, with black setae. Antenna dark brown; first flagellomere about 2.5 x as long as pedicel; arista long plumose in basal two-thirds. Palpus and proboscis brown.

Thorax. Black with silvery grey microtomentum. Chaetotaxy: acrostichals = 0+1, dorsocentrals = 2+3, intraalars = 1+2, supra-alars = 1+3, postpronotals = 2, postalars = 2, notopleurals = 2; scutellum with 2 developed laterals, a pair of fine discals and no apicals; meropleurals = 4, katepisternals = 3, anepisternals = 5, proepimerals = 2, proepisternals = 2. Wing hyaline, vein R1 setulose in basal two-thirds, R4+5 setulose almost to crossvein r-m, stem of vein R2+3 setulose. Legs black; fore femur with a row of long bristles along dorsal and ventral surfaces, fore tibia with one anteroventral bristle on distal half; mid femur with three anteroventral bristles and two preapical posteroventral bristles; mid tibia with one anterodorsal bristle and two posterodorsal bristles; hind femur with three anteroventral bristles, a row of long bristles along dorsal surface.

Abdomen. Black with silvery grey microtomentum forming the usual tessellate pattern; tergites 4 and 5 each with a row of marginal bristles. Sternite 5 with slender arms, inner margin of arms with a membranous portion bearing long and slender setae ( Fig. 3 ).

Terminalia. Syntergosternite 7+8, epandrium and cercus blackish brown. Syntergosternite 7+8 with a row of six strong bristles in posterior margin ( Fig. 1 ). Epandrium with a row of six bristles on anterior margin and with many scattered setae ( Fig. 1 ). Cercus slightly bent backward with rounded apex in profile ( Fig. 1 ); cerci in posterior view separated at apex ( Fig. 2 ). Surstylus elongated with short and stout spines at apex and anterior margin and with few scattered setae ( Fig. 1 ). Pregonite long and slender, curved at apex ( Figs. 5, 6 ). Postgonite shorter than pregonite, with slightly curved apex and a strong bristle on anterior margin ( Figs. 4, 6 ). Basiphallus elongated; separation between basi- and distiphallus indicated by change in sclerotization; basiphallus truncate, with many elongated pin-like latero-ventral processes; lateral plate sclerotized, armed with three branches, superior one with only one tip, the other two with bifid tip; juxta heavily sclerotized, darkened, with denticulate ventral margin and with a hook-like process laterally projected; vesica reduced, with pointed apex ( Fig. 7 ).

Length: 3.1 mm.

Female. Unknown.

Etymology. From the Latinized adjective for “Amazonian” referring to the region in which the species was collected.

Distribution. NEOTROPICAL – Brazil (Pará).

Remarks. The new species differs from the six already described species in having pin-like latero-ventral processes on the distiphallus. Panava amazonica is similar to P. arnaudi and P. imbecilla in that they all share a phallus that is not particularly elongated, unlike the condition in the other species of the genus. Panava amazonica and P. arnaudi share a large lateral plate, while in P. imbecilla the lateral plate is small. The juxta of P. amazonica bears sclerotized and conspicuous spines ( Figs. 6, 7 ), whereas in P. arnaudi and P. imbecilla the juxta bears minute spines.

Figures

FIGURES 1 – 7. Panava amazonica sp. nov., male terminalia. 1. Syntergosternite 7 + 8, epandrium, surstylus, and cercus, lateral view. 2. Cercus, posterior view. 3. Sternite 5, ventral view. 4. Postgonite, lateral view. 5. Pregonite, lateral view. 6. Phallus and associated structures, lateral view. 7. Distiphallus, lateral view. Scale bar = 0.2 mm. Abbreviations: bp = basiphallus, dp = distiphallus, ha = hypandrium, ju = juxta, lp = lateral plate, prg = pregonite, ptg = postgonite, ve = vesica.