260 New Geometridae and Dioptidae in Joicey Collection 



sinuosity in front of B, 3 ; SC 2 very shortly stalked, M 1 connate ; median 

 line followed by an oval white cellspot ; postmedian fine, reddish, 

 sinuous, rather strongly outbent in middle ; subterminal line not 

 differentiable ; terminal line thick and sending out an acute tooth on 

 M 2 ; fringe as on fore wing. 



Underside mostly paler, but the fore wing with strong red suffusion 

 in cell ; margins red instead of chocolate ; markings reproduced but 

 less sharply denned. 



Mahatsinjo, near Tananarive, Madagascar. 



Very distinct from any species known to me. Has a few points in 

 common with rubida Swinh. (Tr. Ent. Soc. Lond. 1904, p. 501) but — 

 apart from many other differences — quite unlike in shape. 



13. Tricentra flavitornata sp. nov. 



cT , 17 mm. 



Head and body flesh-colour, paler beneath than above, the vertex 

 and front of thorax suffused with olive-grey. Palpus deep rosy on outer 

 side. Antennal shaft proximally rosy. Fore leg partly rosy. 



Fore wing with termen very strongly curved behind middle, so as 

 to become extremely oblique posteriorly (not far short of parallel with 

 costa) ; pale primrose-yellow with rosy reticulate markings, formed (as 

 in brunneomarginata Warr.) by rosy veins and several irregular, strongly 

 waved transverse lines ; cloudings of olive-grey at base, along costal 

 region, and in two irregular oblique bands, the first crossing the disco- 

 cellulars and bifurcating broadly behind, enclosing a clear yellow semi- 

 circle at tornus, the second subapical ; both cellspots white ; the anterior 

 smaller and more obscured than the posterior. Hind wing elongate, 

 the termen being very strongly gibbous ; concolorous with fore wing ; 

 both cellspots rather large and clear, with fine olive-grey circumscrip- 

 tion ; no olive-grey clouds at base, costa, nor across DC ; a terminal half- 

 band of olive-grey from apex to near E 3 and an irregular tornal patch, 

 the two narrowly connected along termen ; minute yellow marks at 

 extreme termen. 



Underside paler, with no definite pattern, in places (especially in 

 costal region of fore wing) with pinkish suffusion ; the olive-grey 

 markings of the upperside and the white cellspots feebly suggested. 



French Guiana : Godebert Maroni, October. Type ex coll. 

 Brabant. 



Easily distinguished by the shape and markings. 



