Lispe Latreille, 1797

Fogaça, João M. & de Carvalho, Claudio J. B., 2018, Neotropical Lispe (Diptera: Muscidae): notes, redescriptions and key to species, Journal of Natural History 52 (33 - 34), pp. 2147-2184 : 2149-2151

Genus Lispe Latreille, 1797

Diagnosis

Both sexes dichoptic. Fronto-orbital plate and parafacial with setulae. Palpus yellow, base of the dilation very thin, spatula shaped except in L. serotina ( Figure 3a – g ). Tarsi compressed dorsoventrally ( Figure 4b ) or simple ( Figure 4c ) and pulvilli and claws well developed or very small ( Figure 4a – f ). Dorsocentral setae 2+3 – 4. Anepimeron setulose in the centre. Meron bare or with setulae. Prosternum bare. Sternite 1 setulose, except in L. serotina . Wing, all veins bare, except costal.

To avoid redundant descriptions, the characters listed below, present in all Neotropical Lispe species , will not be repeated.

Head. Male and female dichoptic. Eye sparsely ciliated. Frontal setae with different lengths. Two pairs of reclinate orbital setae. One pair of developed ocellar setae. One pair of postocellar, poorly developed setae. One pair of vertical, inner setae, developed and convergent, larger than ocellar setae. One pair of outer vertical setae, divergent and smaller than ocellar setae. Antenna not reaching the insertion of vibrissa; arista plumose on the basal half and apical half bare. Abdomen. All tergites with lateral marginal seta.

Pictorial key to the Neotropical species of the genus Lispe (modified from Snyder 1949).

1- Mid tibia with only one p median seta ( Figure 1a )................................................................. 2

- Mid tibia with a submedian a or ad seta in addition to the p median seta ( Figure 1b ) ..... 5

2- Vein M curved forward in apical part ( Figure 1h )............................ L. ru fi tibialis Macquart

- Vein M not curved forward in apical part ( Figure 1g ) ........................................................... 3

3- Male: with a prolongation of fore metatarsus ( Figure 1e ). Female: grey legs. .......................................................................................................................... L. tentaculata (De Geer)

- Male: without a prolongation of fore metatarsus ( Figure 1f ). Female: at least tibia yellow pollinose ............................................................................................................................................................ 4

4- Gena silvery pollinose. Male: hind femur with a row of short, stout, pv setae on basal half ( Figure 1c ) ........................................................................................................ L. setuligera Stein

- Gena yellowish pollinose. Male: hind femur without a row of setae ( Figure 1d ) .................................................................................................................................... L. vilis Stein

5- Mid femur with a conspicuous a and av median seta, both at least as long as greatest diameter of femur. Fore tarsus yellowish pollinose. Meron bare ........... L. albitarsis (Stein)

- Mid femur without a conspicuous a or av median seta. Fore tarsus not yellowish pollinose. Meron with setulae or bare ....................................................................................... 6

6- Hind tibia above the middle on ad with a row of more developed setae (4 – 7) as compared to those that cover the tibia .................................................................................... 7

- Hind tibia above the middle on ad without a row of developed setae .................... 9

7- Three postsutural dorsocentral setae. Hind tibia on ad above the middle with a row of setae (4 – 5) ........................................................................................................................................ 8

- Four postsutural dorsocentral setae. Hind tibia on ad above the middle with a row of setae (6 – 7) .............................................................................................................. L. nasoni Stein

8- Hind tibia without an elongated seta on the pd .............................. L mexicana Vikhrev

- Hind tibia with an elongated seta on the pd .................................... L. cotidiana Snyder

9- Presutural dorsocentral seta weak, the anterior one, if present, never so strong as the outer vertical, and the p one smaller than the anterior ocellar seta ( Figure 2a ) L. latana Snyder

- Anterior presutural dorsocentral as strong as the outer vertical and the posterior one as long as the anterior ocellar seta ( Figure 2b ) ........................................................ 10

10- Four postsutural dorsocentral setae, the first two less developed ( Figure 2c ). Sternite 1 bare........................................................................................................................... L. serotina Wulp - Three postsutural dorsocentral setae, all well developed ( Figure 2d ). Sternite 1 setulose ................................................................................................................................................................... 11

11- Legs entirely dark .............................................................................................................................. 12 - Legs not entirely dark ..................................................................................................................... 13

12- Palpus strongly dilated. Golden yellow face. Fore tibia with 1 pv. Mid tarsus without spine-like projection ..................................................................................... 13 L. sordida Aldrich

- Palpus not strongly dilated. Face entirely silvery pollinose. Fore tibia without submedian seta. Mid tarsus at the apex with posterior spine-like projection ............................................................................................................. L. probohemica Speiser

13- The anterior postsutural dorsocentral seta very small, scarcely developed. Pedicel entirely fulvous ( Figure 2f ). Posterior margins of abdominal tergites broadly fulvous and with ill- defined markings ................................................................................................................ L. lisarba Snyder

- The anterior postsutural dorsocentral seta strong. Pedicel with only a small fulvous spot at the apex ( Figure 2e ). With well-defined dark abdominal markings ........................................................................................................................ L. levis Stein

Figures

Figure 1. (a) Lispe setuligera. Mid tibia, lateral view; (b) L. serotina. Mid tibia, dorsal view; (c) L. setuligera. Hind femur, posterior view; (d) L. vilis. Hind femur, posterior view; (e) L. tentaculata. Fore metatarsus, lateral view; (f) L. vilis. Fore metatarsus, lateral view; (g) L. vilis. Wing, lateral view; (h) L. rufitibialis. Wing, lateral view.

Figure 2. (a) Lispe latana. Dorsocentral, presutural setae, lateral view; (b) L. levis. Dorsocentral, presutural setae, lateral view; (c) L. serotina. Dorsocentral, postsutural setae, lateral view; (d) L. levis. Dorsocentral, postsutural setae, lateral view; (e) L. levis. Head, frontal view; (f) L. lisarba. Head, frontal view.

Figure 3. Palpus of the male, lateral view. (a) Lispe latana; (b) L. levis; (c) L. lisarba; (d) L. serotina; (e) L. setuligera; (f) L. tentaculata; (g) L. vilis. Scale bars: 0.1 mm.

Figure 4. Fore tarsi of the male. (a) Lispe latana; (b) L. levis; (c) L. serotina; (d) L. setuligera; (e) L. tentaculata; (f) L. vilis. Scale bars: 0.1 mm.