RHACODIA. 28l 



This curious insect is a native of Mexico. It expands three- 

 quarters of an inch. 



The fore-wings are greyish-white, varied with ashy, with 

 numerous short oblique dashes on the costa. The apex is 

 black, with a small oval white mark. On the inner margin 

 near the base is a small, square, blackish mark, and a large, 

 conical ashy spot beyond it, striated and margined with black. 

 The hind-margin is variegated with leaden-grey and white, with 

 a row of small, double, black dots. The hind-wings are brown. 

 The head and collar are brownish ; the palpi dusky outside, 

 and whitish inside. The larva lives in the seeds of a plant 

 called " Calliguaja? and is very lively, the infested seeds 

 appearing to jump about of their own accord. 



GENUS RHACODIA. (Peroneidce.) 



Rhacodia, Hiibner, Verz. bek. Schmett. p. 384 (1826?). 

 Teras, Treitschke, Schmett. Eur. vii. p. 239 (1829) ; viii. p. 247 

 (1830). 



A curious genus, remarkable for the irregular outline of the 

 costa of the fore-wings. The palpi are also rather longer than 

 usual in the Tortrices. 



THE NOTCH-WING. RHACODIA CAUDANA. 



(Plate CLIV., Fig. 6.) 



Pyrahs caudana, Fabricius, Syst. Ent. p. 651, no. 38 (1775). 

 Tortrix effractana, Hiibner, Eur. Schmett. vii. fig. 175 (1801). 

 Teras caudana, Treitschke, Schmett. Eur. viii. p. 248 (1830), x. 

 (3), p. 128 (1835); Kirby, Eur. Butterflies and Moths, 

 p. 412, pi. 61, fig. 16 (1883). 



This Moth is a native of England, France, Germany and 

 Russia. It expands about three-quarters of an inch. 



The fore-wings are pale purplish-grey, varied with light brick- 



