102 AMERICAN HYMENOPTERA. 



I have not seen a specimen of this species, and can only 

 give a free translation of the original description with addi- 

 tions from Szepligeti's description. 



Type. — 9 . Location unknown to me. 



This species was first described as Ophion hnestratus by Tas- 

 chenberg from a female from Rio de Janeiro, and later re- 

 described as Macrophion ienestratus Szepligeti, a supposedly 

 new species, from a male from Espirito Santo, Brazil. Mr. 

 W. A. Schulz treats M. feiiestratus Szep. and other male speci- 

 mens of this species as "the hitherto unknown males of 

 Tipulophion ruHthorax^^ {A. airiventris) , but this is appar- 

 ently a mistake, for they agree with the female of ienestratus, 

 while the difference from A. atriventris is quite marked. 



Distribution. — Rio de Janeiro, Espirito Santo, Brazil. 

 Atliyreodon apicalis (Szep.). 

 Macrophion apicalis Schmiedeknecht, Opusc. Ichn., XVI II, p. 



1420 1908. 



Ferruginous ; vertex , antennae and posterior legs black ; abdomen 

 bluish-black ; wings, apical third of the anterior wing and apex of the 

 posterior brown. 



Length, 30 mm. 



Type.— 9 . 



I have not seen a specimen of this species, and can give 

 only a translation of the unfortunately incomplete original 

 description. It is apparently closely related to T. spectabilis, 

 and can from our present knowledge only be distinguished 

 from it by the larger ocelli which place it in another genus. 

 Distribution . — Peru . 



Atliyredon atriventris (Cress.). 

 Ophion atriventris Cresson, Proc. Acad. Nat. Sci. Phila., p. 374, 



n, 4, 9, Mexico 1873. 



Thyreodon rufithorax Cameron, Biol. Centr. Amer., Hym., I, p. 

 290, n. 7, 9 , pi. 12, p. 15, Panama, Bu- 



gaba, 800 to 1,500 feet 1886. 



Athyreodon thoracicus Ashmead, Proc. U. S. Nat. Mus., No. 1206, 



p. 87 (Vol. 23) 1900. 



Tipulophion gigas Kriechbaumer, Zeits. f. Syst. Hym. Dipt., I, 



p. 76 1901. 



Athyreodon thoracicus Dalla Torre, Cat. Hym., Ill, p. 185 1901. 



Thyreodon rufithorax Dalla Torre, Idem, p. 186 1901. 



