104 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



tinj^ two trian^uliU' branches ou each side; fifth luteous, with three 

 black linear stripes. Legs yellow; hind lemora with a brown ring 

 near the tip; hind tibise with two indistinct brown rings. Wings a 

 little yellowish. — Translation. 



ADDITIONAL NORTH AMERICAN SPECIES. 



Mesograpta anchorata Osten Sacken, Cat. Dipt., 125. 



Syrphus anchoratna Macquait, Dipt. Exot., ii, 2, 97 ; tab. xvi, fig. 8. 

 Mesograpta arcifera Loew, Centur., vi, 52. — Cuba. 

 Mesograpta basilaris v. d. Wulp, Tijdschr. v. Eutom., xxvi. — Guadeloupe. 



Sijr2)hu8 baaUaris Wiedeinauii, Auss. Z\v. lus., ii, 143,4)^. 

 Mesograpta ectypns Osten Sacken, Cat. Dipt., 125. — Cuba. 



Syrphus ecti/pus Say, J. Acad. Phil., vi, 165, 3; Coiiipl. Wr., ii, 359. 

 Mesograpta laciniosa Loew, Centnr., vi, 50. — Cuba. 

 Mesograpta linearis v. d. Wulp, Tijdschr. v. Eutom., xxvi. — Mexico. 

 Mesograpta minuta Osteu Sacken, Cat. Dipt., 125. — Cuba. 



Sj/rphus minutns Wiedemann, Auss. Zw. Ins. ii, 14G, Brazil; Bigot in R. de la 

 Sagra. etc., 806. 

 Mesograpta multipunctata v. d. Wulj), Tijdschr. v. Entom., xxvi. — Guadeloupe. 

 Mesograpta poecilogastra Loew, Centur., vi, 51. — Cuba. 

 Mesograpta pulchella Osten Sacken, Cat. Dipt., 125. 



Syrpluis pulchelhis Macquart, Dipt. Exot. ler Suppl., 138, 36; tab. xi, fig. 12. 

 Mesograpta snbanuulata Loew, Centur., vi, 48. — Cuba. 

 Mesograpta variabilis v. d. Wulp, Tijdschr. v. Entom., xxvi. — Guadeloupe. 



SPHiEROPHORIA.* 



Sphcerophoria St. Fargeau and Serville, Encycl. Meth., x, 513, 1825; Macquart, 



Dipt, du Nord, 1829. 

 Melithreptus Loew, Okeu's Isis, 1340, 573. 



Slender, small species, of a black or metallic green color, with yellow 

 abdominal bands and yellow lateral stripes on the thorax. Antennae 

 short, a little remote at their base, third joint oval, arista dorsal, bare, 

 or slightly pubescent. Face below somewhat projecting, lightly tuber- 

 culate, yellow, with or \vithout a median black stripe. Eyes bare, con- 

 tiguous in the male; ocelli remote from the vertex. Thorax with yellow, 

 interrupted or entire, lateral strii)es. Scutellum yellow. Abdomen slen- 

 der, elongate, pointed at the tip in the female, clubbed with projecting 

 hypopygium in the male (except S. micrura). Legs slender, simple. 

 Wings in the male often shorter than the abdomen; neuration as in 

 Syr])hus. Type of genus, IS. scripta Linn(^. 



This genus is a very difficult one, and 1 have not attempted its thorough 

 solution, which must be left to the monographer with an abundance of 

 material at his disposal. In Europe much uncertainty yet prevails as 

 to the specific characters. 



* 2(paipo?, sphere ; (popu, bearing. 



