Amazunculus cordigaster Galinkin & Rafael

Marques, Dayse W. A., Skevington, Jeffrey H. & Rafael, José A., 2019, Revision of the genus Amazunculus Rafael (Diptera: Pipunculidae), with description of six new species, Zootaxa 4577 (3), pp. 439-472 : 450-452

Amazunculus cordigaster Galinkin & Rafael

Figs 62–77

Amazunculus cordigaster Galinkin & Rafael, 2008: 519 , figs 1–3; Rodriguez & Rafael, 2012: 14, 27; Marques & Rafael, 2018.

Redescription. Antenna ( Fig. 64 ). Postpedicel light brown with a slight corner at apex. Thorax ( Figs 62–63 ). Mesopleuron brown mostly with grey pruinescence; laterotergite grey pruinose. Mediotergite grey-brown pruinose. Legs ( Fig. 62 ). Dark brown to black, except apices of trochanters, femora and bases of tibiae; femora and tibiae with grey pruinescence on posterior face below. Wing ( Fig. 65 ). Length 8.5 mm. LW/MWW = 3.4. LTC/LFC = 0.8. Membrane mostly hyaline except by basal third darkened. Abdomen ( Fig. 63 ). Dark brown to black, all tergites with bands of grey pruinescence posterolaterally. Tergites 6, 7 and sternites 6 and 7 as in Fig. 67 .

Terminalia. Syntergosternite 8 with a relatively small circular membranous area ( Fig. 68 ). Epandrium and surstyli yellowish brown ( Figs 69–70 ). Cerci distinctly arched ( Fig. 70 ). Surstyli ( Figs 69–70 ) symmetric, with circular markings on distal half; partially fused with epandrium, elongated and narrower ventrally, not surpassing lateral margins of epandrium in lateral view ( Figs 71–72 ). Phallic guide ( Figs 73–75 ) long and curved, about 1.5× the hypandrium length; very wide basally occupying almost the entire cavity formed by epandrium; with a distinct expansion at apex ( Fig. 74 ). Basal processes of phallus long and pointed, surpassing the hypandrium width ( Fig. 73 ). Phallus with two somewhat rounded projections apically ( Figs 75–76 ). Ejaculatory apodeme as in Fig. 77 .

Female. Unknown.

Type material examined. HOLOTYPE ♂: “ BRASIL, AM [azonas], Manaus, C.[ampus] Univ.[ersitário], [3°6'0.36"S, 59°58'35.61"W], vi.1979, J. A. Rafael, Malaise” “Holótipo ♂ Amazunculus cordigaster Galinkin & Rafael ” “ DIPT. 518 Hol.[ótipo]” ( INPA) ( Fig. 66 ).

Holotype condition. Head glued on paperboard triangle. Fore legs broken. Right wing detached, mounted on microslide. Terminalia placed in a microvial with glycerin.

Geographical distribution. Colombia (Amazonas), Brazil (Amazonas) ( Fig. 182 ). Habitat. The holotype was collected in an urban forest of about 600 hectares in the city of Manaus (Amazonas, Brazil) in which the campus of the Federal University of Amazonas—UFAM is found. The only male paratype of this species was not examined in this study, and it was collected in the Amacayacu National Park , a

rainforest area located along the Amazon River in the Amazonas Department in the south of Colombia, with Malaise trap at ground level.

Figures

FIGURES 182. Distribution of Amazunculus species. 182, A. acreanus sp. nov., A. besti Rafael, A. bethoi sp. nov., A. cordigaster Galinkin & Rafael and A. deargentatus Galinkin & Rafael.

FIGURES 62–66. Amazunculus cordigaster Galinkin & Rafael. Holotype male. 62, Habitus, left lateral view; 63, Habitus, dorsal view; 64, Antenna; 65, Wing; 66, Holotype labels.

FIGURES 67–77. Amazunculus cordigaster Galinkin & Rafael. Holotype male. 67, Tergites 6, 7 and sternites 6, 7, ventral view; 68, Syntergosternite 8, posterior view; 69, Terminalia, dorsal view; 70, Epandrium and surstyli, dorsal view; 71, Left surstylus, lateral view; 72, Right surstylus, lateral view; 73, Hypandrium, phallic guide and phallus, ventral view; 74, Phallic guide, dorsal view; 75, Hypandrium, phallic guide and phallus, left lateral view; 76, Phallus, ventral view; 77, Ejaculatory apodeme.