MELISA. — THTEASSIA. 19 



Melisa diptera. (Plate IX. fig. 10.) 

 Euchromia (Melisa) diptera, Walker, Cat. Lep. Het. i. p. 265. n. 114 (1854). 



Wings black, with purple reflections; the secondaries very small. Body black; abdomen 

 with lateral series of ochrcous dots ; anus castaneous ; pectus black; femora, tibiae, and tarsi 

 reddish orange ; venter with the basal half reddish orange, anal half ochreous. Expanse of 

 wings 2 inches 1 line. 



Congo (Richardson). 



HYDRUSA, Walker. 



Hydrusa bicolor. (Plate IX. fig. 1.) 



Euchromia (Hydrusa) bicolor, Walker, Cat. Lep. Het. i. p. 255. n. 90 (1854). 



Wings black. Body black ; the head, collar, and seven broad transverse abdominal bauds 

 orange. Expanse of wings 1 inch 3 lines. 

 Australia. 



Hydrusa mnltigntta. (Plate VII. fig. 3.) 

 Syntomis multigutta, Walker, Cat. Lep. Het. i. p. 134. n. 37 (1854). 



Wings yellowish hyaline, margins and veins black-brown : primaries with a discocellular 

 litura and the apex brown : secondaries with rather a wide outer border. Head and thorax 

 black ; outer margin of tegulre carmine : abdomen carmine, with three rows of oblong spots 

 and the anus black ; pectus dark brown, trochanters carmine ; venter carmine, with two rows 

 of oblong black spots. Expanse of wings 1 inch. 



Nepal (Hardwicke) . 



The type is faded, consequently the abdomen is described as " reddish luteous ; " but we 

 now have a fresh example from Darjeeling, and a second marked " India," in both of which 

 the abdomen is bright carmine. 



i 

 THYRASSIA, Butler. 



Thyrassia subcordata. (Plate VII. fig. 5.) 

 Syntomis subcordata, Walker, Cat. Lep. Het. i. p. 132. n. 33 (1854). 



Brownish black : primaries with three luteous hyaline spots, two forming a postmedian 

 transverse band, the third subapical : secondaries with a large ochreous spot at the base : 

 abdomen with a broad central ochreous band, interrupted by one or sometimes two black- 

 edged segments and a slender longitudinal dorsal line. Frons and collar ochreous ; venter 

 black. Expanse of wings 10 to 12 lines. 



North India. 



d2 



