Milichiella theodori
Content
Description
Male coloration: Black, except for yellow setulae ventrally on distal tip of tibia and first tarsomere of foreleg and on first two tarsomeres of hindleg. Basoflagellomere black in holotype, but appears to be reddish in paratype. Tergites 2-5 silvery microtomentose dorsally. Wing hyaline, veins dark; calypter with dark margin; halter black.
Head: Eye about 1.6x as high as long, notch in posterior eye margin about 0.08x the length of eye. Very slight emargination below notch. Posterior orbital seta smaller than anterior 2 orbital setae. Palpus with short setulae at tip and a few longer setulae ventrally.
Thorax: Two posterior dorsocentral, 1 prescutellar, 1 presutural, and 2 katepisternal setae.
Legs: Femur dorsally with 3 long but weak setae.
Wing: R4+5 and M1 converging, costal section between R4+5 and M1 0.5x as long as section between R2+3 and R4+5. Ultimate section of M1 about 3.0-3.2x length of penultimate section. Notch at subcostal break extending about breadth of costa into wing plane. Wing length: ~2.6 mm
Abdomen: Tergite 2-5 silvery microtomentose dorsally, the silvery area bare except for one row of setulae at the posterior margin, many setae along lateral and a few at posterior margin of silvery area. Sternite 5 with a few setulae. Male genitalia with normal surstylus and cercus (Fig. 14).
Body length: 2.3 mm.A
A. Brake 2006: Diverse Milichiella Giglio-Tos (Diptera: Milichiidae) in Miocene Dominican amber. – Insect Syst. Evol. 37: 17-26
Head: Eye about 1.6x as high as long, notch in posterior eye margin about 0.08x the length of eye. Very slight emargination below notch. Posterior orbital seta smaller than anterior 2 orbital setae. Palpus with short setulae at tip and a few longer setulae ventrally.
Thorax: Two posterior dorsocentral, 1 prescutellar, 1 presutural, and 2 katepisternal setae.
Legs: Femur dorsally with 3 long but weak setae.
Wing: R4+5 and M1 converging, costal section between R4+5 and M1 0.5x as long as section between R2+3 and R4+5. Ultimate section of M1 about 3.0-3.2x length of penultimate section. Notch at subcostal break extending about breadth of costa into wing plane. Wing length: ~2.6 mm
Abdomen: Tergite 2-5 silvery microtomentose dorsally, the silvery area bare except for one row of setulae at the posterior margin, many setae along lateral and a few at posterior margin of silvery area. Sternite 5 with a few setulae. Male genitalia with normal surstylus and cercus (Fig. 14).
Body length: 2.3 mm.A
Discussion
Milichiella theodori is most similar to M. argyrogaster Perris, 1876 from the Palaearctic Region and M. lacteiventris Malloch, 1931 from the Australian Region, but differs in the color of the tarsi.B
B. Brake 2006: Diverse Milichiella Giglio-Tos (Diptera: Milichiidae) in Miocene Dominican amber. – Insect Syst. Evol. 37: 17-26