416 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



GROTEA FULVA CameroB. 



Groteafulva Cameron, Biol. Central Americana, Ins., vol. 1, 1886, p. 309, pi. 12, 



fig. 27. 



Type. — British Museum Natural History. 



This species, which was described from specimens collected at 

 Presidio, Mexico, is, because of the dusky spot along the apex of the 

 radius, probably the most distinct species. A single female from San 

 Rafael, Jicoltepec, Mexico, is in the United States National Museum, 

 and has the following characters: Basal area converging posteriorly, 

 one-third longer than basal width; length, 18 mm. 



GROTEA MEXICANA Cressoii. 



Grotea mexicana Cresson, Proc. Acad. Nat. Sci. Phila., 1873, p. 413. 



Type. — Cat. No. 648, Acad. Nat. Sci. Philadelphia. 



Paratype.—C&t. No. 13286, U.S.N.M. 



The clear wings and pale color as well as the size seem to separate 

 this form from californica. In the type, as well as all other specimens 

 examined, the basal area is nearly parallel-sided and about one-third 

 longer than the basal width. 



Known only from Orizaba, Mexico. 



GROTEA CALIFORNICA Cresson. 



Grotea californica Cresson, Proc. Acad. Nat. Sci. Phila., 1878, p. 370. 



Type.— C&t. No. 1534, Acad. Nat. Sci. Philadelphia. 



In the type the basal area slightly converges posteriorly and is only 

 a little longer down the middle than the basal width, while the apical 

 transverse carina is sharply angulate (towards the head) medianly. 

 In the female referred to below the basal area is similar. Two males 

 of this species have the basal area similar but differ from the female 

 in having the apical tergites dusky. 



Distribution. — Originally described from one female collected in 

 California by H. Edwards. A male and female from Los Angeles and 

 a male from Alameda County, California, all collected by D. W. 

 Coquillett are in the National collection. 



Tribe HHYSSINI Cushman and Bohwer. 



Rhyssides Morley, Rev. Ichn. Brit. Mu8., pt. 2, 1913, p. 2. 



Rhyssini Cushman and Rohwer, Proc. U. S. Nat. Mus., vol. 57, 1920, p. 394. 



Morley was the first author to recognize this tribe and in char- 

 acterizing it laid special stress on the ' 'Strongly transcarinate mesono- 

 tum." While this character is very useful it is believed that the 

 defining characters of the tribe as given by Cushman and Rohwer are 

 more reliable and these authors use the commonly accepted ending 

 for tribes. 



The members of the tribe Rhyssini have usually been placed in the 

 tribe Ichnemnonini (olim Pimplini) but in minor characters and in 



