47 



*ambellatarum 0. Sacken, Proc. Bost. Soc. X. H. 1875. White Mts., N. H.^^) 

 ? Syrphus umhellatnrum Schiner, Fauna Austr. I, p. 307. Europe. 

 ? Syrphus guUatus in Walker's List, etc., Ill, p. 586. Huds. B. Terr. 

 Observation. — The following two species are either 8. torvus or 8. rectus ; 

 their descriptions, however, are too short for identification (compare 0. 

 Sacken, Proc. Bost. Soc. N. H. 1875). 

 Scaeva concava 8ay, Journ. Acad. Phil. Ill, p. 89, 3; Wiedemann, Auss. Zw. 

 II, p. 130, 24 {8yrphus). 



Syrphus philadelphicus Macquart, Dipt. Exot. II, 2, p. 93; Tab. XVI, 2. 

 Philadelphia. 



fumipeunis Thomson, Eugen. Resa.,etc., p. 499. California. 



infumatns Thomson, ibid., p. 501. California. 



limbiTeutris Thomson, ibid., p 495. California. 



sulphuripes 27i<???iSo;i, ibid., p. 500. California. 



trichopiis Thomson, ibid., 502. California. [The M. C. Z. has specimens of 

 a Syrphus from San Francisco, which I cannot distinguish from the European 

 8. p>yrastri.'\ 



Antipathes Walker, List, etc.. Ill, p 589. Jamaica. 



colludens Walker, Trans. Entom. Soc. X. Ser. V, p. . Mexico. 



delineatus Macquart, Dipt. Exot. ler Supph p. 139, 37; Tab. XI, fig. 13. 

 Mexico. 



*Jaetator Loew, Wiener Ent. Mon. V, p. 40; Centur. VI, 46. Cuba. 



liuibatus Fahricius, Syst. Antl. p. 251, 10 {8caeva); Wiedemann, Auss. Zw. 

 II, 133, 30. West Indies. 



iiiutmis Say, J. Acad. Phil. VI, p. 164, 2. Mexico. 

 *nigripe8 Loew, Centur. VI, 44. Cuba. 

 *praeustus Loew, Centur. VI, 44. Cuba. 



quadrifasciatus Bigot, in R. de la Sagra, etc., p. 804; Tab. 20, fig. 5. Cuba. 



radiatilS Bigot, in R. de la Sagra, etc., 804. Cuba. 

 *simplex Loew, Wien. Ent. Mon. V, p. 40; Centur. VI, 43. Cuba. 



stegnus Say, J. Acad. Phil. VI, p. 163, 1. Mexico. 



Observation. — The following species, described as Syrphus, belongs to 

 some other genus; I am unable to say what. 



sexmaculatllS Palisot, Beauvjis, Ins. p. 224; Dipt. Tab. Ill, fig. 8. Southern 

 States; San Domingo. 



