34 Psyche [February 
Eriocera Macquart. 
1830. Caloptera Guerin; Voyage de la Coquille; Zodl.; pl. 20; f. 2. 
1838. FEriocera Macquart; Dipt. Exot.; vol. I, pt. 1; p. 74. 
1838. Evanioptera Guerin; Voyage d’ la Coquille; Zodl.; vol. 2, pt. 2; p. 287. 
1848. Pterocosmus Walker; List Dipt. Brit. Mus.; vol. I, p. 78. 
1850. Allarithmia Loew.; Bernstein und Bernsteinfauna, p. 38. 
1857. Oligomera Doleschall; Naturk. Tijds. v. Nederl. Ind.; vol. 14, p. 11. 
1859. Arrhenica Osten Sacken; Proc. Acad. Nat. Sci. Phil.; p. 242. x 
1859. Physecrania Bigot; Ann. Soc. Ent. Fr.; p. 123; pl. 3, fig. 1. 
1912. Androclosma Enderlein; Zodél. Jahrb; vol. 32, pt. 1, p. 34, fig. U, V. 
Eriocera is one of the dominant genera of the crane-fly fauna in 
Neotropical countries. The key given below is based on a study 
of specimens of many of the species and a careful consideration of 
the original descriptions. It should, however, be supplemented 
by the original description wherever this is possible. 
A Key to the Neotropical Species of Eriocera. 
1. Wings dark colored with hyaline or yellowish cross-bands, or wings light col- 
ored ‘withtdark/cross-bandsteA. |e eee ne Coe ee eee 2 
Wings, whether dark colored or not, uniform, or nearly so, in color, not cross- 
|oLchate (eyo | eee. | eee eee nether RENE ce nit ince nas O Beh molto 9 ¢ 13 
2. Wings light-colored with three dark cross-bands, [small species; length, 9, 
Simm], (BortotdRicos) ssncpele ee eer ee eee eer trifasciata Réder! 
Wings dark colored with hyaline or yellowish cross-bands................-.. 3 
3s Headidark«colored)notmedioryellowseses eee eerie ene 4 
Head vellowishtorreddishi, 26 46 acne serienone er 6 nee eee sao 
4. Base of the wings pale; femora with the basal third and a ring at the second 
third yellow; first four abdominal segments bright yellow; head with a 
yellowish-grey bloom. (Colombia.)..................... braconides End.? 
Base of the wings dark; legs, abdomen (with the exception of the apical seg- 
ments of the 2 ) and head entirely black. (Guatemala.).... magnifica, sp. n. 
bee Lipof the wing darkscolorede Sa.) ae ee ee ee eee 6 
Tip of the wing pale giving the wing the appearance of having an apical yellow 
Conoselopnol, (ONKoieelay 1bveAvall)) 3 co cone pac ocoseoocuseaes perpulchra, sp. n. 
6. Wings pale brown with a moderately narrow, hyaline band, whose distal edge 
is limited by the cord; a small brownish stigmal spot [antenne bright brown- 
ish-yellow; thoracic dorsum brownish-yellow with three greyish brown stripes; 
femora with middle third and apical quarter brown on a ochraceous-yellow 
ground] (Colombian) ae esse eer eae oe virgulativentris End.s 
Wings darker brown with the cross-band usually wider; stigma not distinct ...7 
1 Roder, V. von; Stett. Entomol. Zeitung; vol. 46, p. 338; 1885. 
2 Enderlein, G.; Zool. Jahrbuch; vol. 32, pt. 1; p. 47, (f. B‘); 1912. 
3 Enderlein, G.; 1. c.; p. 47, 48; (f. e1); 1912. 
