62 DITTERI DEL MESSICO 



Baccha stenogaster Williston, ibid., p. 34, 6. 



— riibida Williston, ibid., p. 34, 7, tab. I, fig. 8, 8a, Sb. 



— gracilis Williston, ibid., p. 34, 8. 



— attenuata Williston, ibid., p. 35, 10. 



— punctifrons Williston, ibid., p. 36, 11. 



— laudabilis Williston, ibid., p. 36, 12. 



— dolosa Williston, ibid., p. 37, 13. 



— lugubris Williston, ibid., p. 37, 14. 



— aenea Williston, ibid., p. 37, 15, tab. I, fig. 10, 10 a. 



— coerulea Williston, ibid., p. 38, 16. 



— concinna Williston, ibid., p. 38, 17. 



Myolepta auricaudata Williston, ibid., p. 40, 1, tab. I, fig. 11, Ila, 115. 



Bilingui nigra Macquabt, Dipt. exot., 1«'- suppl., p. 133, tab. E, fig. 10; Williston, 



ibid., p. 40, 1. 

 Volucella tibialis Macquabt, loc. cit., p. 123. 



— ajjerta Walker, Trans. Ent. Soc. Lond., n. ser., V, p. 25. 



— viridula Walkek, ibid., p. 25 (Temnocera). 



— unilecta Walker, ibid., p. 25 (Temnocera). 



— tricincta Bigot, Ann. Soc. Entom. Fr., 1875, p. 477. 



— amethystina Bigot, ibid., p. 479. 



— nigrifacies Bigot, ibid., p. 479. 



— varians Bigot, ibid., p. 481. 



— tau Bigot, ibid., 1883, p. 84. 



— vicina Bigot, ibid., p. 86 (Phalacromyia). 



— volucelloides Bigot, ibid., p. 548 (Glaurotrìcha ?). 



— fasciata Macquart, Dipt. exot.. Il, 2, p. 22, t. 5, fig. 2 ; Williston, N. Am. Syrph. 



p. 145, pi. VI, fig. 4. 



— chaetophora Williston, N. Amer. Syrph., p. 149. 



— ? Williston, ibid., p. 150. 



— pica ScHiNER Reis. d. Novara, p. 355, tab. TV, fig. 6, 6 a; Williston, Biol. Centr. 



Amer., HI, p. 41, 2 (Phalacromyia). 



— bellula Williston, ibid., p. 42 (Phalacromyia). 



— isabellina Williston, ibid., p. 46, 3. 



— quadrata Williston, ibid., p. 46, 4, tab. I, fig. 12, 12a, 12i. 



— pietà WiEDEMANN, Auss. zweìfl. Ins., n, p. 201; Williston, ibid., p. 47, 6 = pul- 



chripes Bigot, Ann. Soc. Ent. Fr., 1875, p. 480. 



— Comstocki Williston, Biol. Centr. Amer., IH, p. 51, 15. 



— opinator Williston, ibid., p. 51, 17. 



— macula Wiedemann, loc. cit., II, p. 200; Williston, loc. ert., p. 51, 18. 



— tympanitìs Fabbicius, Syst. Antl., p. 226; Williston, loc. cit., p. 52, 22. 



— fusdpennis Macquabt, Dipt. exot., Il, 2. p. 24, t. 4, fig. 2; Williston, ibid., p. 54, 26. 

 Copestyhmi Umbipenne Williston, N. Amer. Syrph., p. 152. 



Eristalis familiaris Walker, Trans. Entom. Soc. Lond., n. ser., V, p. 290. 



— expictus Walker, ibid., p. 290. 



— lateralis Walker, List. Dipt. Ins., ecc., HI, p. 622. 



