Micropotamia ananas, Jorge & Carvalho, 2024

Jorge, Stela Costa & Carvalho, Claudio José Barros De, 2024, Description of four new species of the Neotropical Micropotamia Carvalho (Diptera, Muscidae), Zootaxa 5471 (1), pp. 67-82 : 73

Micropotamia ananas sp. nov.

ZooBank: urna:lsid:zoobank.org:act: EED2B7C8-A834-44C8-A6D4-A8393A511C4C

( Figs. 9, 10 , 14 , 22 , 30 , and 38)

Diagnosis. Frontal setae 4 pairs, 2nd and 4th pairs strong; post-sutural acrostichal setae with 5 to 6 misaligned rows; supra-alar setae 2, 2nd seta same size as the prealar; post-supra-alar setae 2; hind femur on AV surface with row of 6 setae on apical third, last 4 setae stronger; P surface with 1 preapical seta.

Description. Male (holotype): length: body: 4.0mm, wing: 3.5mm. Male paratypes: body length: 3–5 mm, wing: 3–4 mm.

Coloration. Head. Fronto-orbital plate with brown/black background and grayish pruinosity. Antenna yellow brown, with grayish pruinosity. Arista brownish with lighter ring just above base, base brown. Lunule brownish, with or without grayish pruinosity. Thorax black with pruinose stripe reaching presutural dorsocentral setae, with 2 black stripes. Wing hyaline or slightly darkened on costal region. Fore and mid tibia brown.

Thorax. Intra-alar setae 1+2. Postpronotal lobe with 2 setae. Anepisternum with 6 setae. Katepisternal setae 1+1, with a setulose area.

Legs. Mid femur on V surface with row of spaced setae, PV surface with row of long and spaced setae up to basal half and 1 preapical seta; tibia on D surface with 1 preapical seta, PD surface with 1 apical seta. Hind femur not swollen, D surface with 1 preapical seta, V surface without strong setae, PV surface with 2 preapical setae, PD surface with 1 preapical seta; tibia on AD surface with 4 setae on apical half, 2 more developed, anterior surface with 1 apical seta, V and PV surfaces without strong setae.

Abdomen. Fifth sternite subquadrate on anterior margin, posterior margin with digitiform extensions forming a 45-degree angle ( Fig. 22 ). Terminalia. Cercal plate rounded externally on posterior margin ( Fig. 30 ). Surstyli with a notch and curved towards center of cercal plate ( Fig. 30 ). Phallus straight and apically curvilinear, pregonite flattened basally, distiphallus membranous with denticles ( Fig. 38 ).

Material examined. Holotype ♂. BRASIL. Amazonas: Borba, Rio Abacaxis , [-5.150900, -58.415200]. 26– 28.v.2008. J. A. Rafael e equipe. Malaise ( INPA).

Paratypes. BRASIL. Amazonas: 1 ♂, Borba, Rio Abacaxis , [-5.150900, -58.415200]. 26–28. v.2008. J. A. Rafael e equipe. Malaise. ( INPA) ; 1 ♂, Rio Nhamundá. Ig Areias. [-1.351100, -57.373200], 25m . 17–20. v.2008. J. A. Rafael e equipe, Malaise ( INPA) ; 1 ♂, Barcelos, Rio Aracá, Boca Rio Curuduri. [-5.200, -17.22300]. 15– 19.vi.2010. Varredura. S. S. Oliveira, J. T . Câmara, J. A. Rafael & V . Linardi (DZUP-563059) ; 1 ♂, Barcelos, Rio Padauari, Com. Ararinha. [-3.01800, -64.03300]. 5–8.vi.2010. R . Machado, J. A. Rafael & P. Dias. Malaise. (DZUP-563060) ; 1 ♂, Lábrea, Ramal Apaeral, km 09, Sítio São Raimundo. [-7.19100, -64.4700]. vi.2006, Coleta manual. F. F. Xavier leg. ( INPA) ; 1 ♂, Presidente Figueiredo AM240 , km 24. [-2.0102900, -59.4936200]. Cordeiro, D., Guedes, M., Grisales, D. & Haseyama, L. (DZUP-563061); Rio Grande do Sul: 1 ♂, Rio Grande ESEC Taim / Vigílio Pequeno-pto 01. 17.xii.2011. Malaise. [-32.6351100, -52.4865500]. R . F. Kruger, F. D. Kirst & A. Z. Silva leg. (DZUP-563062).

Etymology. The specific epithet, ananas , refers to the type-locality of the holotype (from Latin: ananas = pineapple), in Rio Abacaxis, municipality of Borba, Amazonas, Brazil.

Figures

FIGURES 7–12. (7) Micropotamia minuscula (Albuquerque, 1955), hind femur, lateral view, setae on AV surface; (8) M. ditissima sp. nov., hind femur, lateral view, setae on AV surface; (9) M. ananas sp. nov., hind femur, posterolateral view, seta on P surface; (10) M. ananas sp. nov., hind femur, lateral view, setae on AV surface; and hind tibia in lateral view, setae on PV surface (calcar); (11) M. amazonica (Albuquerque & Lopes, 1982), hind femur, lateral view, setae on AV surface; and (12) M. stellaria sp. nov., hind femur, lateral view, setae on PV surface; and hind tibia in lateral view, setae on AD surface. Captions: AD= anterodorsal, AV= anteroventral, P= posterior, PV= posteroventral. Scale: 0,5 mm.

FIGURES 13–16. Micropotamia, lateral view: (13) M. stellaria sp. nov., holotype; (14) M. ananas sp. nov., holotype, (15) M. ditissima sp. nov., holotype; (16) M. fortuna sp. nov., paratype. Body length: 3.0–4.0 mm.

FIGURES 21–24. Fifth sternite of male, dorsal view. (21) Micropotamia stellaria sp. nov.; (22) M. ananas sp. nov.; (23) M. ditissima sp. nov.; (24) M. fortuna sp. nov. Scale: 0.1 mm.

FIGURES 29–32. Cercal plate, epandrium, and surstylus, dorsal view. (29) Micropotamia stellaria sp. nov.; (30) M. ananas sp. nov.; (31) M. ditissima sp. nov.; (32) M. fortuna sp. nov. Scale: 0.1 mm.

FIGURES 37–40. Phallus: phallapodeme, pregonite, postgonite, and denticles on membrane, lateral view. (37) M. stellaria sp. nov.; (38) M. ananas sp. nov.; (39) M. ditissima sp. nov.; (40) M. fortuna sp. nov. Scale: 0,1 mm.