Agenamyia exotica de Carvalho & Couri, 1992

Carvalho, Claudio José Barros De, Wolff, Marta, Haseyama, Kirstern Lica Follmann & Fogaça, João Manuel, 2023, Review of the endemic Neotropical genus Agenamyia Albuquerque (Diptera: Muscidae) with the description of new species from South America, Zootaxa 5346 (5), pp. 532-550 : 538-540

Agenamyia exotica de Carvalho & Couri, 1992

( Figs. 5A–D , 14A, C )

Diagnosis. This species is similar to Agenamyia timida de Carvalho, Wolff & Fogaça sp. nov. in general appearance. Tarsi are blackish, with 2–3 yellowish fore tarsus segments.

Measurements (n=3): body length = 3.8–4.1 mm. Wing length = 3.5–3.8 mm.

Redescription. Head. Male. Light brown fronto-orbital plate with 6–7 setulae. Light brown frontal vitta. Light brown parafacial and with silver pruinosity. Dark brown palpus with a lighter base. Dark brown antennae and lighter pedicels. Light brown arista.

Thorax. Dark brown mesonotum, without stripes. Dorsocentral 1+3, first postsutural 1/4 smaller than the third Two postsutural intra-alar setae, the posterior weak. Anterior katepisternal seta were very similar to background setulae.

Wings. Clear. Whitish calypteres.

Legs. Yellowish with apical femora and blackish tibia. Fore tibia with a row of pv setae in apical third. Hind femur on av with three apical setae. Hind tibia with 2–3 apical av setae.

Abdomen. Syntergite 1+2 conspicuously yellowish.

Terminalia ( de Carvalho & Couri, 1992: 23, Figs. 1–3 ). The cercus is divided into two parts, much longer than wide, with a parallel apex and setulae at the base. Surstylus much shorter than the cercus.

Female. Measurements (n=3). Body length = 4.1–4.4 mm. Wing length = 3.5–4.0 mm.

Similar to males. Anterior katepisternal similar to posterior ventral katepisternal. Legs distinctly light brown. Hind femur with two av setae in apical half (median one found in males is lacking). Abdomen with tergite 3 less conspicuously yellowish.

Ovipositor ( de Carvalho & Couri, 1992: 23, Figs. 5–7 ). Tergite 6 is divided longitudinally, and tergites 7 and 8 are large and divided longitudinally. Sternites 6 and 7 are undivided and covered with a few setulae; sternite 8 is divided, reduced, and covered with a few setulae. Epiproct has one pair of strong setae. Large, very setulose hypoproct. Three spermathecae.

Material examined: Holotype ♁, WSU ( de Carvalho et al. 2005) (not examined).

Paratypes: Panama: Canal Zone , Barro Colorado Island, Malaise trap, Roger D. Akre leg, 22.ii.1967, 2 ♀ ( MNRJ) , same data, 28.ii.1967, 2♀ ( MNRJ) , same data, 13.iv.1967, 1 ♁ ( MNRJ) , same data, 4-5.v.1967, 1 ♁ ( MNRJ) , same data, v.1967, 1 ♁ ( MNRJ) .

Additional material examined. PANAMA: Canal Zone, Barro Colorado Island , Malaise trap, Roger D. Akre leg., 13.iv.1967, 1 ♀ ( DZUP) ; same data, 16.ii.1967, 1 ♀ ( INPA) ; same data, 17.ii.1967, 1 ♁ 1♀ ( INPA) , 1 ♁ (DZUP); same data, 28.ii.1967, 1 ♀ ( INPA) , same data, 27.ii.1967, 2 ♁ ( INPA), 2 ♀ ( DZUP) , same data, 28.ii.1967, 1 ♁ 1 ♀ ( INPA) , same data, 2.iii.1967, 2 ♁ ( INPA) , same data, 12.iii.1967, 2 ♁ 1 ♀ ( INPA) , same data, 8.iii.1967, 2 ♀ ( INPA) , same data, 10. iii.1967, 1 ♀ ( INPA) , same data, 15.iii.1967, 1 ♀ ( INPA) , same data, 16.iii.1967, 1 ♀ ( INPA) , same data, 19.iii.1967, 1 ♀ ( INPA) , same data, 23.iii.1967, 1 ♀ ( INPA) , same data, 26. iv. 1967, 2 ♀ ( INPA) , same data, 4-5. v. 1967, 1 ♁ ( INPA) , same data, 5. v.1967, 1 ♀ ( INPA) , same data, 23.v.1967, 1 ♀ ( INPA) , same data, 15.iv.1967, 1 ♀ ( INPA) . COLOMBIA, Sopetrán ( Quebrada La Jiménez ), 780 msnm, 22.vi.1983, M. Wolff, 2 ♁, 3 ♀ ( CEUA) , 1 ♁ 2 ♀ ( CEUA) .

Distribution. Sopetrán (new record), Colombia; Canal Zone, Panama.

Biology. The larvae are aquatic. Adult specimens were collected from an altitude of 780 m in Sopetrán, a tropical dry forest (bs-T) ( Holdridge 1967).

Figures

FIGURE 1. Emergence trap: (A) emergency box containing an ethanol and glycerin emulsion; (B) wooden stabilizer stick; (C) muslin net for flight avoidance; (D) plastic-coated wooden board.

FIGURE 2. Agenamyia colombiana de Carvalho, Wolff & Fogaça sp. nov. Male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal. Female: (D) habitus, lateral. Scale bars: (A, C, D) 2 mm, (B) 500 µm.

FIGURE 3. Agenamyia colombiana de Carvalho, Wolff & Fogaça sp. nov., male: sternite 5 and terminalia: (A) sternite 5; (B) epandrium, cercus and surstylus lateral view; (C) cercus, posterior view; (D) terminalia, lateral view; (E) terminalia, frontal view; (F) terminalia, dorsal view. Abbreviations: cerc—cercus, distph—distiphallus, epand—epandrium, epiph—epiphallus, hypd—hypandrium, hyprct—hypoproct, pgt—postgonite, phapod—phallapodeme, pregt—pregonite, sur—surstylus. Scale bars: 0.1 mm.

FIGURE 5. Agenamyia exotica de Carvalho & Couri, paratype male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal; (D) female, habitus, lateral. Scale bars: (A, C) 1 mm, (B) 500 µm, (D) 2 mm.

FIGURE 6. Agenamyia fumipennis Albuquerque, holotype male: (A) habitus, lateral; (B) head, frontal; (C) habitus, dorsal; (D) Labels. Scale bars: (A, C) 1 mm, (B) 500 µm,.

FIGURE 7. Agenamyia fumipennis Albuquerque, holotype male, slides: (A) abdomen; (B) wing; (C) terminalia; (D) epandrium, surstylus, and cercus; (E) sternite V; (F) label; (G) label. Scale bars: 0.5 mm.

FIGURE 14. Geographic distribution of Agenamyia species. (A) all species; (B) A. colombiana (black square); (C) A. exotica (blue square); (D) A. fumipennis (yellow square); (E) A. maculata (red square); (F) A. timida (green square). Biogeographic provinces of the Neotropical region (Morrone et al. 2021):Atlantic province (blue region), Cauca province (light brown region), Guatuso-Talamanca province (dark brown region), Magdalene province (green region).