DEL DOTT. E. GIQLIO-TOS 61 



Melanostoina ? quadrìnotatum Bigot, Ann. Soc. Ent. Fr., 1884, p. 77. 



— ? annuliferum Bigot, ibid., p. 84. 



— cyaneocinctum Bigot, ibid., 1885, p. 251. 



— rugonasus Williston, Biol. Centr. Amer., IH, p. 13, 8. 

 Syrphus delineatus Macquakt, Dipt. exot., l'^"' suppl., p. 139. 



— colliidens, Trans. Ent. Soc. Lond., n. ser., V, p. 293. 



— agilis BiGOT, Ann. Soc. Ent. Fr., 1884, p. 92. 



— americanus Wiedemann, loc. cit.. Il, p. 129; Williston, loc. cit., p. 15, 1. 



— lotus Williston, ibid., p. 16, 2. 



— diversus Williston, ibid., p. 16, 5. 



— gastrostactxis ? Williston, ibid., p. 17, 8. 



— decipiens Williston, ibid., p. 18, 9. 



Bidea laxa Osten Sacken, Bull. Buff. Soc, lU, p. 66; Williston, loc. cit., p. 18, 1. 

 Sphaerophoria rostrata Bigot, Ann. Soc. Ent. Fr., 1884, p. 102. 



— pachypyga Bigot, ibid., p. 104. 



— fulvicauda Bigot, ibid., p. 104. 



— — ? Williston, loc. cit., p. 22, 3. 



— — ? Williston, ibid., p. 22, 4. 



— nasuta Bigot, ibid., 1888, p. 253. 



— trilimbata Bigot, ibid., 1888, p. 253. 



Mesogramma ectijpum. Say, Journ. Acad. Philad., VI, p. 165 (Syrphus). 



— lineare van dee Wulp, Tijdsclir. v. Entom., XVI, p. 5 (Mesograpta). 



— (?) saphiridiceps Bigot, ibid., 1884, p. 105 (Mesograpta). 



— mu Bigot, ibid., p. 105 (Mesograpta). 



— lacrytnosum Bigot, ibid., p. 108 (Mesograpta). 



— heraldicmn Bigot, ibid., p. 109 (Mesograpta). 



— trilobatum Bigot, ibid., p. 109 (Mesograpta). 



— bistrìgum Bigot, ibid., p. 110 (Mesograpta). 



— maculatum Bigot, ibid., p. Ili (Mesograpta). 



— hicinctum Bigot, ibid., p. 112 (Mesograpta). 



— quinquecinctum Bigot, ibid., 1888, p. 254 (Mesograpta). 



— quinquemaculatum Bigot, ibid., 1888, p. 251 (Mesograpta). 



— ? Williston, Biol. Centr. Amer., HI, p. 25, 4. 



— ? Williston, ibid., p. 26, 5. 



— ? Williston, ibid., p. 26, 6. 



— ? Williston, ibid., p. 27, 8. 



Salpingogaster litnbipennis Williston, ibid., p. 29, 3. 

 Octjptamus infuscatus Bigot, ibid., 1883, p. 324. 



— fraternus Bigot, ibid., p. 324. 

 Baccha luduosa Bigot, ibid., p. 384. 



— conjunda Wiedemann, Auss. zweif. Ins., II, p. 116 (Syrphus); Williston, Ice. cit., 



p. 33, 1. 



— lineata Macquart, Dipt. ex., P"" suppl., p. 139. 



— phaeoptera Schineb, Reise Novara, p. 342; Williston, loc. cit., p. 33, 2. 



— livida ScHiNER, ibid., p. 343; Williston, ibid., p. 33, 3. 



