NYMPHALIN^. (Group yruFBALixA.) 47 



cavated above the posterior angle, posterior margin recurved ; costal vein extending 

 to middle of costa j first subcostal veinlet emitted at one-fifth before end of the 

 cell and ending at a httle beyond the costal vein ; second subcostal at one-tenth 

 before end of cell ; third subcostal at fully one-half beyond the cell ; the cell very 

 short and broad, closed ; upper discocellular veinlet very short, middle discocellular 

 concave, lower discocellular almost straight, very slender ; middle median veinlet 

 emitted close to lower end of cell. Hindivincj broad and prolonged posteriorly ; 

 anterior margin rather short, lobate at the base and excavated before the apex, 

 which is acute ; exterior margin oblique, scalloped from the apex and produced to a 

 spatular-tail at end of upper median veinlet and broadly-lobate between lower 

 median and the submedian ; precostal vein curving from its base, slender, simple ; 

 costal vein much arched from base of precostal and thence extending close along 

 the margin to near the apex ; cell broad, closed ; subcostal branch widely separated 

 from the costal ; upper discocellular outwardly curved, lower discocellular outwardly 

 oblique and very slender ; middle median emitted close to end of cell. Bodij 

 slender; palpi long, rather slender, directed upwards to middle of eyes and then 

 porrected and projecting more than half its length beyond the head, somewhat 

 cylindrical, the sides slightly flattened, very compactly clothed with short hairy 

 scales which are slightly lax above and at base beneath, terminal joint nearly as 

 long as second and obtusely pointed ; forelegs of male short, very slender ; femur 

 scaly above, clothed beneath with fine long silky hairs ; tibia scaly ; tarsus sparsely 

 clothed with very short hairs. Forelegs of female longer ; femur scaly above, finely 

 hairy beneath ; tibia and tarsus smooth ; tarsus broadly dilated towards end, apical 

 joints minute, stoutly spined ; antennas slender, with a gradually-formed elongate 

 club ; eyes naked. Tiipe. — C. Thyonneus. 



Laeva (C. Thyodamas). — " Slender, cylindrical, smooth; with two long, curved, 

 divergent filaments, or soft horns, on the head ; a single stouter sword-shaped one 

 on the back of the fifth or sixth segment, curved backwards and serrated on its 

 inner edge ; another on the last segment, curved forwards and serrated on its outer 

 edge " (Davidson). 



Pupa. — " Suspended by the tail. Very much compressed ; with a dorsal ridge 

 from head to tail, high and obtusely pointed in the middle ; palpi cases united and 

 produced into a long somewhat recurved snout " {Dacidson). 



Egg. — "High domed-shape, or almost conical, with an aperture at the top 

 fitted with a deeply dentate flat cap, like a cogged wheel " {Davidson). 



Habits of Imago. — " All the species of this genus are very elegant insects on the 

 wing, having a floating sailing flight, often settling on the wet sand on the borders 

 of a stream to suck up the moisture, with wings very wide outspread and lying flat 

 on the ground, the forewings much advanced in front of the head ; if disturbed they 



