Paragrallomyia ecuadoriensis, Ferro & Marshall, 2020

Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 55-56

Paragrallomyia ecuadoriensis new species

( Figs. 27–28 )

Description (female only): Body length 6 mm; wing 4 mm. Head brown, thorax black and abdomen dark brown. Palpus brown except for white outer face. Clypeus brown with sparse pale microsetulae. First flagellomere dark brown. Fronto-orbital plate yellowish-brown. Row of katepisternal setae brownish. Fore tibia dark brown. Fore tarsus mostly white, tarsomere one brown on basal half only. Hind femur mostly dark brown, white on basal quarter and with a small angled preapical white ring. Tergites dark brown. Oviscape dark brown.

Head: First flagellomere covered by pale microsetulae. Frontal vitta uniformly brown, without a darkened spot anterior to ocellar plate. Frontal vitta flat, not swollen anterior to ocellar plate. Epicephala converging, not immediately merging posterior to ocellar plate ( Fig. 27 ). Epicephalon somewhat swollen above frontal vitta level.

Thorax: Mesonotum with lines of thin brownish microsetulae. Anterior half of postpronotal lobe bare. Femur covered with sparse black microsetulae. Mid and hind tibia flattened, sulcus on outer face strongly pronounced and curved. Cervical sclerite brown with a rounded swelling. Cell r 4+5 open at the tip of the wing.

Abdomen: Single spermathecal duct smooth and with a small swelling apically. Single spermatheca smooth and cylindrical. Paired spermathecal duct uniformly thick, with an apical rounded swelling. Paired spermathecal duct stems tapered on basal third, broader and convoluted on apical half ( Fig. 28 ). Paired spermathecae oval and smooth.

Type material: Holotype: ECUADOR. Napo, Yasuni National Park: PUCE Yasuni research station, Malaise trap in rain forest, 76º36’ W 00º38’ S, 3–20.XI.1998, T. Tape & B. Viklund (1♀, DEBU00178981 , QCAZ). Paratype: Napo, Yasuni National Park : PUCE Yasuni research station, Malaise trap in rain forest, 76º36’ W 00º38’ S, 3–20.XI.1998, T. Tape & B. Viklund (1♀, GNM).

Distribution: Ecuador.

Comments: P. ecuadoriensis is similar to P. citrina , but its mid and hind tibiae are conspicuously flattened and curved. The thick and twisted paired spermathecal duct stems also make this species distinct.

Figures

FIGURES 27–28. Paragrallomyia ecuadoriensis n. sp. 27, female, dorsal view; 28, female internal reproductive structures, ventral view.