Medetera plumbella

Ya, Igor & Vikhrev, Nikita E., 2009, Mediterranean species of the Medetera plumbella species group with description of a new peculiar species from Morocco (Diptera: Dolichopodidae), Zootaxa 2170, pp. 46-52 : 48

Key to Mediterranean species of the Medetera plumbella species group

1 Fore coxa greyish black; femora black at base and tibiae black at apex; tarsi entirely brown-black; m-cu longer than apical section of CuA1; body length: 2.0 .................................................................................... M. sylvestris (Becker)

- Fore coxa yellow; femora entirely yellow; tibiae and basitarsi black at most at extreme apex; m-cu equal to or shorter than apical section of CuA1.............................................................................................................................. 2

2 Mesonotum with yellow or brownish setae; scape and pedicel yellow; hind femur without long anteroventrals ...... 3

- Mesonotum with black setae; scape and pedicel either yellow or black ...................................................................... 5

3 Fore and mid coxae with simple or inconspicuously flattened setae; body length: 1.7–2.1 M. pallidior (Stackelberg)

- Fore and mid coxae with flattened scale-like anterior cilia forming true brush; body length: 2.25............................. 4

4 Fore tibia shorter than 1st and 2nd tarsomeres combined; greatest distance between M1+2 and R4+5 3.5 times as long as that at their tips............................................................................................................................ M. albisetosa (Parent)

- Fore tibia longer than 1st and 2nd tarsomeres combined; greatest distance between M1+2 and R4+5 2.5 times as long as that at their tips............................................................................................................. M. albescens lutescens (Parent)

5 Antenna entirely black; fore and mid coxae with simple pilosity; body length: 1.6–2.5 .............................................. .................................................................................................................................................... M. plumbella Meigen

- Scape and pedicel yellow or reddish; fore and mid coxae with either simple or modified cilia ................................. 6

6 Fore and mid coxae with simple sparse hairs; acrostichal setae well developed; body length: 1.75 ............................ ....................................................................................................................................................... M. araneipes Parent

- Fore and mid coxae with flattened anterior cilia forming true brush; acrostichals short ............................................. 7

7 Frons and face greyish-white pollinose; hind coxa with one seta; male with fore tarsus from apex of basitarsus to 4th segment slightly swollen, densely covered with white thickened cilia on anterior surface; body length: 2.0–2.2 ....... .................................................................................................................... M. varvara Grichanov et Vikhrev sp. nov.

- Frons and face silvery-white; hind coxa with three outer setae; legs unmodified; body length: 2.25 ........................... ..................................................................................................................................... M. albescens albescens (Parent)