TORTRICINA. 259 



The four genera comprised in this group are thus tabulated : 



A. Anterior wings in all the genera regularly ar- 

 cuated in both sexes. 

 a. Palpi with the middle joint three times as 



long as the apical 1. ETJCHROMIA. 



2. ORTHOT^NIA. 

 a a. Palpi with the middle joint more than three 



times as long as the apical 3. SERICORIS. 



4. MIXODIA. 



Genus I. EUCHROMIA, STEPHENS. 



Palpi much longer than the head, remote, ascending ; basal joint 

 moderately stout ; apical slender, obovate, densely clothed with short 

 scales, not so long as the basal ; middle stout, thickened beyond the 

 centre, clothed with long scales beneath, more than three times as 

 long as the apical. Thorax robust, ovate. Anterior wings ; length 

 equals twice the width. Costa regularly arcuated ; apex subacute. 

 Apical margin straight, dorsal slightly rounded. The costal vein at- 

 tains the margin near the middle ; subcostal nervures equidistant, the 

 discoidal cell lies towards the middle of the wing, not extending two- 

 thirds its length, and widest at the insertion of the submedian ner- 

 vure. Posterior wings ample, elongate; apex obtuse, apical and 

 dorsal margins slightly concave. Anal angle produced. Abdomen 

 long and slender, stoutest in the $ , tufted in both sexes. 



This genus is restricted, in the Museum Catalogue, to such 

 species as have the anterior wings red or rose-colour ; but as 

 those in the second and third sections of the following table pre- 

 sent no structural differences, we have thought it best to include 

 them also ; it is, however, doubtful if the section C will hereafter 

 remain in its present position. The larvae, for the most part, 

 live in shrubs. 



The six species comprised in this genus are thus arranged : 



A. Anterior wings reticulated or streaked with crimson 



or rose-colour Species 1-3 



B. Anterior wings with a distinct, but undefined central 

 fascia, fuscous in colour, but no basal patch. 



a. With the fascia abbreviated . . . . . . . Species . 4 



b. With the fascia entire Species . 5 



C. Anterior wings with a distinct, but undefined central 



fascia, and a basal patch Species . 6 



