14 



Prorifrons tremula Schaus. 



Metaiiastria tremula Schaus, Ann. Mag. Nat. Hist. VII (8) 370 (1911). 

 Habitat : — Costa Rica. 



Prorifrons vibrans Schaus. 



Metanastria vibrans Schaus, Ann. Mag. Nat. Hist. VII (8) 371 (iQn)- 



Close to preceding, but as far as can be judged from single speci- 

 mens distinct. Veins AL and M3 of secondaries connate, in tremula 

 stalked. 



Habitat : — Costa Rica. 



Prorifrons conradti Druce. 



Eutricha conradti Druce, Ann. & Mag. Nat. Hist. (6) XIII, 180 (1894); id. 



Biol. Cent. Am. Het. II, 428, pi. 85, f. 9 (1897)- 

 Deiidrolimus prosfer Dyar, Jour. N. Y. Ent. Soc. XV, 237 (1907)- 



Dr. Dyar tells us that he is disposed to regard prosper as synony- 

 mous with conradti; we have the co-type of prosper before us and are 

 inclined to agree with him ; allowing for certain inaccuracies in Druce's 

 figure the two are very close. The species held at the time by Dr. 

 Dyar to be conradti, and with whurh he compares prosper, is appar- 

 ently not that species; it has recently been received labelled championi 

 Druce from Mr. W. Schaus. These species all show a great general 

 similarity and without long series and an actual knowledge of the 

 type specimens we confess to an utter inability to deal with them. 



Habitat: — Mexico; Guatemala. 



Prorifrons championi Druce. 



Lebeda championi Druce. Biol. Cent. Am. Het. I. 203 PI. 22. f. i (1887). 



We are not at all certain as to the specimen before us being cor- 

 rectly identified. 



Habitat: — Panama; Mexico; Orizaba (?). 



Prorifrons rufescens Schaus. 



Metanastria rufescens Schaus, Ann. Mag. Nat. Hist. VII, (8) 370 (19" )• 



Another of those confusing species belonging to the conradti- 

 championi group, of which we have seen but a single specimen. 



Habitat : — Costa Rica. 



