Swammerdamella mojingae Cook, 1956

Huerta, Heron & Dzul, Felipe, 2013, First record of the genus Abrhexosa Freeman from Mexico, with the description a new species, and two new species and new records of the genus Swammerdamella Enderlein (Diptera: Scatopsidae), Zootaxa 3693 (1) : -

Swammerdamella mojingae Cook, 1956

( Figs 7 E–F)

Swammerdamella mojingae Cook, 1956:29 (Male holotype, Panama (Mojinga Swamp, Ft. Sherman, Canal Zone); Figs. segment 7, male genitalia.

New records: 4 males. Mexico, Jalisco, Estación Biológica Chamela, Cuenca 4ª, 18-Feb-1992, Fumigación, Col. A. Pescador, in CAIM. First record from Mexico.

Distribution. From Mexico (Jalisco) to Panama.

Swammerdamella marginata Cook ( Figs 7 A–D)

Swammerdamella marginata Cook, 1956:24 (Male holotype; female allotype, paratypes (males, females); Figs. segment 6 and 7 of male, wing, male genitalia and female genitalia; Distribution: USA (New Mexico, California), Mexico (Guadalajara).

New records: 2 females, 2 males. México, Estado de México, Otumba, cerca de la Localidad Coyotepec, Trampa Malaise, 5 al 26-Jun-2007, D., Hernández-Zetina, Col., 2 females, 1 male; same data except, 12-Abr-4-May-2007, 1 male; same data except, 4-31-Oct-2007, GPS Coordinates: N 19° 39´09.3´´ NO 98° 45´25.7´´, 1 male, 3 females, preserved in ethyl alcohol.

1. Antenna with 8 flagellomeres; aedeagal plate longer than the genitalia (sword-shaped) ( Fig. 7 F)......... S. mojingae Cook (Neotropical: Mexico (Jalisco) to Panama)

- Antenna with 7 flagellomeres; aedeagal plate shorter than the genitalia........................................... 2

2(1). Tergite 6 with modified posterior margin ( Figs 4 E, 7C)....................................................... 3

-. Tergite 6 unmodified, simple............................................................................. 5

3(2). Posterior margin of sternite 6 with sagittate median process....................................... S. sagittata Cook (Neactic: USA, Neotropical: Mexico (Morelos))

- Posterior margin of sternite 6 differently shaped............................................................. 4

4(3). Anterior margin of tergite 7 almost straight ( Fig. 5 B).......................................... S. amorimi sp. nov. (Neotropical: Mexico (San Luis Potosi, Guerrero)).

- Anterior margin of tergite 7 rounded ( Fig. 7 A)................................................ S. marginata Cook (Nearctic: USA, Mexico (Estado de México); Neotropical: Mexico (Jalisco)).

5(4). Gonocoxite (sensu Cook:1956) small, lobate; sternite 7 with anterior margin heavily sclerotized; intersegmental membrane of segment 7 with lateral specialized groups of setae................................. S. grogani Huerta & Ibáñez-Bernal (Neotropical: Mexico (Yucatan: Reserve Ría Lagartos and Ría Celestun))

- Gonocoxite long, finger-shaped ( Fig. 4 B); sternite 7 with anterior margin not strongly sclerotized ( Fig. 5 A); intersegmental membrane of segment 7 without lateral specialized groups of setae............................ S. amacuzacae sp. nov. (Neotropical: Mexico (Morelos, Guerrero))

Figures

FIGURE 4. Swammerdamella amacuzacae sp. nov. Male, A – B; Swammerdamella amorimi sp. nov. Male, C – F. A, C. Segment 7, ventral view; B, D. Genitalia, ventral view; E. Tergite 6, dorsal view; F. Sternite 6, dorsal view.

FIGURE 5. Segment 7. Male. Ventral view. A. Swammerdamella amacuzacae sp. nov.; B. Swammerdamella amorimi sp. nov.

FIGURE 7. Swammerdamella marginata Cook. Male, A – D; Swammerdamella mojingae Cook. Male, E – F. A, E. Segment 7, ventral view; B, F. Genitalia, ventral view; C. Tergite 6, dorsal view; D. Sternite 6, dorsal view.