20 Hymenoptera in America North of Mexico 



Acordulecera nigrata Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 249. 9. N. syn. 

 Acordulecera portiae Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 249. 9. 

 Acordulecera basirufa Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 250. 9. N. syn. 

 Acordulecera flavipes Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 250. 9. 

 Acordulecera 7iigritarsis Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 250. 9. 

 Acordulecera quercus Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 251. 9 . N. syn. 

 Acordulecera hicoriae Rohwer, 1917. U. S. Natl. Mus., Proc. 53: 157. 9. N. syn. 

 Acordulecera meleca MacGillivray, 1921. Brooklyn Ent. Soc, Bui. 16: 23. 6. 

 Acordulecera musta MacGillivray, 1921. Brooklyn Ent. Soc, Bui. 16: 23. i. 



maculata MacGillivray. N. Y., Pa., 111. 



Acordulecera maculata MacGillivray, 1908. Canad. Ent. 40: 169. 9, 6. 

 mellina MacGilHvray. Conn, to Ga. w. to Mich., 111., Okla. 



Acordulecera mellina MacGilHvray, 1908. Canad. Ent. 40: 169. 9. 



Acordulecera mixta MacGillivray, 1908. Canad. Ent. 40: 169. 9,6. 

 pellucida (Konow). Mass. and Pa. w. to Nebr., Kans., Tex. 



Acorduleceros pellucidus Konow, 1898. Ent. Nachr. 24: 253. 9. 



Acordulecera minuta MacGillivray, 1908. Canad. Ent. 40: 169. 9. 



Acordulecera scutellata Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 247. 9, cJ. N. syn. 



Taxonomy: Smith, 1973. Ent. Soc. Wash., Proc. 75: 30. 



Subfamily LOBOCERATINAE 



Genus SKELOSYZYGONIA Malaise 



Skelosyzygonia Malaise, 1935. Ent. Tidskr. 56: 161. 



Type-species: Skelosyzygonia spiiiipes Malaise. Orig. desig. 



The single species in this genus was recorded from Texas; this is a dubious record for this 

 Brazilian form. 



spinipes Malaise. "Tex."; Brazil (Rio de Janeiro). 



Skelosyzygonia spinipes Malaise 1935. Ent. Tidskr. 56: 161. 6. 



Taxonomy: Conde, 1939 Deut. Ent. Gesell., Mitt. 9: 49 ("Tex." record). 



Family ARGIDAE 



This family is cosmopolitan. It is the second largest sawfly family, with over 800 species. The 

 tropical regions of the world contain the largest number of species, over 100 species of Arge 

 alone having been described from tropical Africa. Over 300 species of the family have been 

 described from the Neotropical Region, even though the fauna there is virtually unexplored. In 

 America north of Mexico, the greater number of species is found in the southwestern United 

 States. Hosts and habits are various, but most species feed externally on the foliage of the host 

 plant in the larval stage. Only one North American species is known to be a leafminer, 

 Schizocerella pilicomis (Holmgren) in purslane. 



Taxonomy: Benson, 1938. Roy. Ent. Soc. London, Trans. 87: 371-375 (key to subfamilies, 

 world). —Malaise, 1941. Ent. Tidskr. 62: 131-140 (key to world genera). —Wong, 1951. Ont. 

 Ent. Soc, 82nd Ann. Rpt, p. 53 (cocoons). —Benson, 1963. Ann. and Mag. Nat. Hist. (13) 5: 

 631 (tribes of Arginae and genera of Scobini). —Smith, 1969. Amer. Ent. Soc, Trans. 95: 

 439-457 (Nearctic genera). —Smith, 1972. Amer. Ent. Soc, Trans. 98: 163-184 (N. Amer. 

 larvae). 



Subfamily ARGINAE 



Genus ARGE Schrank 



Cryptus Jurine, 1801. Intell. Blatt. Litt.-Ztg. Erlangen, v. 1, p. 163. Suppressed by 



Internatl. Comm. Zool. Nomencl., Op. 135, 1936. 

 Arge Schrank, 1802. Fauna Boica, p. 209. 



Type-species: Tenthredo enodis Linnaeus. Desig. by Rohwer, 1911. 

 Hylotoma Latreille, 1802. Hist. Nat. Crust. Ins., v. 3, p. 302. 



