294 Mr. 0. Thomas on new 



This species resembles Erephrosis rufo-hirta, Walker, and 

 other Brazilian species in the shape of the abdomen and 

 general appearance (see Ann. & Mag. Nat. Hist. (7) v. p. 175, 

 1900). 



Erephrosis rufescens, $ , sp. n. 



Two females from Peru {Callanga) and Bolivia (Songo). 



This species should belong to Scione, Walker (Diclisa, 

 Schiner), having the fourth posterior cell closed; but as it 

 does not agree with the description of the genus in any other 

 particulars and has all the appearance of a true Pangonia 

 (Latr.), it seems best to include it for the present under 

 Pangonia (Latr.) (see Ann. & Mag. Nat. Hist. (7) v. p. 104, 

 for similar cases). 



Reddish brown. Antenna? dull red, lighter at the apex, 

 with black segmentations ; the first joint stout, nearly three 

 times as long as the second, both with black hairs at the 

 sides. Face and palpi brown, with fawn-coloured tomentum, 

 the latter curved; the second joint longer than the first, 

 broad, ending in a point bordered with black pubescence. 

 Forehead reddish, fulvous at the sides bordering the eyes, 

 with short black pubescence. Beard black, thin, with a few 

 red hairs. Thorax brown ; scutellum red : both with short 

 fulvous pubescence. Abdomen red, shining, with irre- 

 gular black markings and orange-red pubescence on the lateral 

 margins, becoming thicker on the apex. Legs red ; the coxee 

 brown, with black pubescence ; the femora reddish brown, 

 with short black pubescence ; the anterior and posterior tibia) 

 and tarsi with some reddish pubescence. Wings hyaline, 

 tinged with yellow on the fore border ; no appendix ; fourth 

 posterior cell closed. 



Length 17 millim. ; proboscis 7 millim. 



Type ( ? ) from Peru ( Callanga) . 



XXXVII. — Descriptions of new Rodents from Western South 

 America. By Oldfield Thomas. 



Sciurus (Micr ostiums) Simonsi, sp. n. 



Size as usual in this group. General colour above grizzled 

 olivaceous, about as in S. Alfari, though slightly darker. 

 Under surface also very much as in that species, the hairs 

 tipped with buffy, not ferruginous. Sides of nose yellowish. 



