204 Mr. O. Thomas on new 



Tliis species resembles Erephrosis rufo-hirta, Walker, and 

 other Brazilian species in the shape of the abdomen and 

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

 1900). 



Erephrosis rufescens, $ , sp. n. 



Two females from Peru {Callanga) and Bolivia {Bongo). 



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 Aim. & Mag. Nat. Hist, (7) v. p. 104, 

 for similar cases). 



lleddish brown. Antennai dull red, lighter at the apex, 

 Avith 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 coxse 

 brown, with black pubescence; the femora reddish brown, 

 with short black pubescence ; the anterior and posterior tibise 

 and tarsi with some reddish pubescence. \A'ings 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 [Microsciurus) 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 bufiy, not ferruginous. Sides of nose yellowish. 



