Amazunculus deargentatus 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 : 452-454

Amazunculus deargentatus Galinkin & Rafael

Figs 78–92

Amazunculus deargentatus Galinkin & Rafael, 2008: 521 , figs 12–13; Rodriguez & Rafael, 2012: 14; Marques & Rafael, 2018.

Redescription. Antenna ( Fig. 80 ). Postpedicel light brown with obtuse apex. Thorax ( Figs 78–79 ). Mesopleuron dark brown to black, brown pruinose; laterotergite grey pruinose. Mediotergite brown pruinose. Legs ( Fig. 78 ) dark brown, except apices of trochanters and femora, and basal halves of tibiae yellow; tarsi darker; femora with grey pruinescence on posterior face. Wing ( Fig. 81 ). Length 8.2 mm. LW/MWW = 3.5. LTC/LFC = 1.3. Membrane entirely light brown infuscated. Abdomen ( Fig. 79 ). Dark brown, all tergites with bands of grey pruinescence posterolaterally. Tergite 6 and sternites 6 and 7 as in Fig. 83 . Terminalia. Syntergosternite 8 with moderately large circular membranous area ( Fig. 84 ). Epandrium brown and slightly inflated ( Fig. 85 ). Surstyli ( Fig. 85 ) brown; fused with epandrium, elongated, distinctly projected ventrally towards epandrium, wider dorsally than ventrally in lateral view ( Figs 86–87 ). Phallic guide ( Figs 88–90 ) elongated and curved, somewhat conical in dorsal and ventral views ( Figs 88–89 ), about 1.8× the hypandrium length. Basal processes of phallus inconspicuous, very short, much narrower than hypandrium and far from reaching hypandrium margin. Phallus with apex heavily sclerotized, with two convergent small projections apically ( Fig. 91 ). Ejaculatory apodeme as in Fig. 92 .

Female. Unknown.

Type material. HOLOTYPE ♂: “ BRASIL, Amazonas , Manaus, R.[eserva] Ducke, [2°55'48.7"S, 59°58'30.6" W], 09.ix.1986, Ulysses [Barbosa], Luis [Aquino]” “Holótipo ♂, Amazunculus deargentatus Galinkin & Rafael ” “ DIPT. 519 Hol.[ótipo]” ( INPA) ( Fig. 82 ).

Holotype condition. Left postpedicel lost; lower part of head damaged. Right wing detached, mounted on microslide. Terminalia placed in a microvial with glycerin.

Geographical distribution. This species is known only from the type locality, Amazonas, Brazil ( Fig. 182 ).

Habitat. This species was collected in a reserve located close to Manaus (Amazonas, Brazil), that is covered by typical dryland evergreen tropical forest.

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 78–82. Amazunculus deargentatus Galinkin & Rafael. Holotype male. 78, Habitus, left lateral view; 79, Habitus, dorsal view; 80, Antenna; 81, Wing; 82, Holotype labels.

FIGURES 83–92. Amazunculus deargentatus Galinkin & Rafael. Holotype male. 83, Tergite 6 and sternite 6, ventral view; 84, Syntergosternite 8, posterior view; 85, Epandrium and surstyli, dorsal view; 86, Left surstylus, lateral view; 87, Right surstylus, lateral view; 88, Hypandrium, phallic guide and phallus, ventral view; 89, Phallic guide, dorsal view; 90, Hypandrium, phallic guide and phallus, left lateral view; 91, Phallus, ventral view; 92, Ejaculatory apodeme.