Macrochile spectrum Loew, 1850

Krzeminski, Wiesław, Krzeminska, Ewa, Kania, Iwona & Ross, Andrew J., 2013, New taxa of Tanyderidae (Diptera) from Eocene Baltic amber, Zootaxa 3599 (1), pp. 59-66 : 60

Macrochile spectrum Loew, 1850

( Figs. 1–4 )

Macrochile spectrum Loew, 1850 : Bernstein und Bersteinfauna, p. 37.

Macrochile spectrum Loew, 1851 : Linnaea Entomol., 5: 402–403, figs.

Macrochile spectrum Osten Sacken, 1869 : Mon. Dipt. N. Amer., 4: 318–319.

Idioplasta spectrum Meunier, 1906 : Mon. Tipulidae et Dixidae , pp. 390–391, pl. 16, fig. 2 (hypopygium 3). Idioplasta spectrum Meunier, 1917 : Neues Jahrb. Mineral., 1917: 99.

Macrochile spectrum Crampton, 1926 : Ent. News, 37: 33–38, pl. 3, fig. 1 (thorax). Macrochile spectrum Crampton, 1926 : Bul. Brooklyn Ent. Soc., 21: 1–14, pls. 1–2.

Diagnosis. R2+3 almost half of R2 ( Figs 1, 2 ); gonostylus rather short and wide at the base, without big protuberance, without strong, short bristles at the inner part (Figs, 3, 4).

The complete description and illustrations of M. spectrum are in Alexander (1931).

Material examined. No. 1024.2 (male), No. 1613 (male) Hoffeins coll.; No. K 1749 Z246 (male) Göttingen; No. MBI—Mikropalaeontologie, Bernstein Inklusion 357 (male) Berendt coll., N. M. Berlin; No. MP/2918 (sex unknown, specimen without hypopygium preserved), No. MP/2920 (female), No. MP/2921 (male) housed in Institute of Systematic and Evolution of Animals, Polish Academy of Sciences, Kraków.

Figures

FIGURES 1 – 4. Macrochile spectrum Loew, 1850, No. K 17492246; 1. wing, 2. wing, drawing (oryg.), 3. hypopygium, ventrolateral view, 4. gonocoxite and gonostylus, ventral view, drawing (oryg.); a—arm of gonostylus; a. l. — anal loop; gs—gonostylus; gx—gonocoxite; k—knob on gonostylus.