316 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



of sucking apparatus, with basal support, measures 0.26; head at 

 temples 0.52X0.61; Irons 0.40. The type, a female, is in the collec- 

 tion of the author; also 1 9 paratype. When this species was de- 

 scribed, the author remarked that it was being provisionally placed in 

 the genus Physostomum, since a closely related species (prominens) 

 had been placed there by Dr. Kellogg, but in the opinion of the 

 author, further collecting from hummingbirds would produce addi- 

 tional species upon which a new genus could be safely erected. Ten 

 years later this new genus was described by Paine and Mann. 



Trochiloecetes emiliae Paine and Mann, 1913 



Trochiloeceles emiliae Paine and Mann, Psyche, vol. 20, p. 21, fig. 5, 1913. Host: 

 Thalurania (furcala) furcatoides Gould. 



Without seeing the type it is difficult to place this species in the 

 key. However, it falls into Section B, c' , with doratophorum, but 

 has a smaller head than this species (0.52X0.56 against 0.55X 

 0.61). The head is longer at the occiput than at the temples; the 

 transverse frontal carina is very short (if the figure given is correct) ; 

 it falls far short of the lateral margins of the head (a very unusual 

 condition if true). The author gives incorrect measurements for 

 doratophorum, perhaps because he compared emiliae with some 

 species wrongly identified as that form. 



Trochiloecetes ochoterenai Zavaleta, 1943 



Trochiloecetes ochoternai Zavaleta, Tesis Univ. Mexico, Fac. Sci., Dept. Biol., 

 p. 54, pi. 5, fig. c, 1943. Host: Selasphorus rufus (Gmelin). 



I have been unable to secure a copy of the description of this 

 species. Colonel Emerson sent me from its host a pair of specimens 

 that he supposed were the Trochiloecetes in question, but unfortu- 

 nately they proved to be species of the Ricinus-like genus described 

 on succeeding pages of this paper. It is not impossible that both 

 Trochiloecetes and Trochilophagus (the new genus) would be found 

 on the same host, since I have them both from Selasphorus flammula. 

 Until further information can be secured concerning the species, it 

 may be provisionally left in Trochiloecetes. 



Trochiloecetes aglaeacti, new species 



Figure 3,a~b 



Type, male adult, from Aglaeactis c. cupripennis (Bourcier), col- 

 lected by the author at Malvasa, Dep. Cauca, Colombia, Jan. 22, 1957, 

 in the collection of the author. Represented by a single cf , the holo- 

 type. 



