132 LLOYDS NATURAL HISTORY. 



hind- wings are almost white beneath. In this species, the 

 margins of the wings are regularly curved. The other species 

 of the genus differ chiefly in the outline of the wings, and the 

 width of the dark border, the females being sometimes marked 

 with orange-yellow instead of white ; but in all cases, the under 

 surface is white or yellowish-white, with very slight transverse 

 darker markings, if any are present. 



GENUS GERYDUS. 



Gerydi/s, Boisduval, Spec. Gen. Lepid. i. pi. 23, fig. 2 (1S36) ; 



Distant, Rhop. Malay, p. 205 (1884). 

 Miletus^ pt. Hiibner, Verz. bek. Schmett. p. 71 (1816); West- 

 wood, Gen. Diurn. Lepid. p. 502 (1852); Schatz & Rober, 

 Exot. Schmett. ii. p. 276 (1892). 

 This genus and several of its allies are dull-coloured brown 

 and white species, with slender bodies and rather long wings. 

 Most of them are found in the East Indies. In the type of 

 Gerydus, the first joint of all the tarsi is unusually long, com- 

 pressed, and spatulate. The type is, 



GERYDUS SYMETHUS. 



Papilio symethus, Cramer, Pap. Exot. ii. pi. 149, figs. B, C 



(1777); StoU. Suppl. Cramer, pi. 37, figs. 3, 3^(i79o)- 

 Polyominatus symethus, Godart, Enc. Meth. ix. p. 675, no. 180 



(1823). 

 Gerydus symethus, Boisduval, Spec. Gen. Le'pid. i. pi. 23, fig. 2 



(1836); Distant, Rhop. Malay, p. 205, pi. 20, fig. 2, 



pi. 22, fig. 14 (1884). 



The present species, which is a native of Java and Malacca, 



has rather long greyish-white fore-wings, with the base, and 



the basal half of the costal area bluish-grey, and all the borders 



of the wings broadly black. The hind-wings are bluish-grey 



