44 TENTHKEDINIDiE. 



2. Themos olfersii. 

 Hylotoma olfersii, King, Jahrb. d. Insect, i. p. 249, n. 91 ( 1 33 1 1. 

 Hah, Brazil. 



3. Themos surinamensis. 

 Bylotoma surinamensis, King, Berl. Mag, vi. p. 807, n. 38 (1814). 

 Hah. Surinam. 



26. PTILIA. 



I lia, St.-Farg. Mon. Tenthr. p. 49 (1823) ; E , MSth.x.-p. 



(1825). 

 Didymia, St.-Farg. fy Serv. Em " ' • p " : ! 1826). 

 Rusobria, Cameron, Trans. Ent. < s c. I -7-. i. 150. 

 Bylotoma, § -I, Klug, Jah-b. d. i L p. 246 | L8I 



1. Ptilia peletieri. 



SchizociTu> ]ii'letierii, Gray, drift'. Anim. Kingd. xv. p. I03.pl. lwi 

 fig. 1(1832). 



I hi':. Carthagena. 



2. Ptilia brasiliensis. 



ia brasiliensis, St.-Fa g. M ti. Tenthr. \\ 50, n. I I". | 1823). 

 Schizocera xanthoptera, Perty, Del. Anim. Art.X). L30, pl.xxvi fie. 5 



(1830 .".I i. 

 Bylotoma xanthoptera, King, Jahrb. d. J p •_' I". < I B3 I ). 



Hab. Brazil. 



a. $ . Brazil. 



l>. 2- Rio Janeiro. A. I >-. , Esq. 



c. §. RioJaneiro. I imthe'N F the ' Rattlesnake.' 



(Collected by J. MacGillivray, Jan. 

 d-f. $*. L848.) ' 



3. Ptilia melanura. 



Ptilia melanura, St.-Farg. 8f Serv. En . Mith. x. p. 238 (1825). 



I lull. South America. 



4. Ptilia megaptera. 



Rusobria megaptera, Cameron. Trans. Ent. Sue. 1878, p. 151. 



ffab. Brazil. 



* St.-Fargeau, in liis original descriptio thai the thorax is black. 



Ee corrected this error in the ' Encyclopedie Methodique,' bul it bas hitherto 

 prevented bis genus and typical Bpecies from being properly recognized. One 

 of the specimens in the British Museum is labelled j I y, but ha 



resemblance to the Bgure of that specii 



