252 AECTIAD^. 



with obscure diffused fuscous antemedial line angled below the cell; 

 traces of a discoidal lunule ; obscure diffused obliquely curved post- 

 medial and subterminal lines. Hind wing paler and yellower. 



Hah. Cayenne ; Amazons, Gurapa {Austen), Kvp., (S 34, $ 48- 

 54 millim. 



Larva. Black ; the tufts of hair rather short, the dorsal tufts red- 

 dish or bright rufous ; the hair mixed with grey on subdorsal area 

 and with some barbed hair meeting over the back and directed 

 backwards ; the sides with tufts of long silky hair. Food-plant, 

 Mayacajluviatilis, on which it feeds below the surface of the water. 



1688. Maenas burmeisteri. 



Fahistra burmeisteri, Berg, An. Soc. Arg. iii. p. 228 (1877) ; id. Stett. ent. 

 Zeit. xxxix.,p. 224, pi. i. f. 1 (1878) ; Kirby, Cat. Het. p. 224. 



Dull brown ; antennae black ; legs tinged with black ; abdomen 

 obscurely banded with black, the extremity pale. Pore wing with 

 obscure black discoidal lunule ; two ill-defined postmedial lines ex- 

 curved from costa to vein 2, the inner then incurved, the outer with 

 a spot below it on inner margin ; faint traces of subterminal darker 

 patches. Hind wing rather paler, yellowish towards inner margin ; 

 an obscure curved black subterminal line. 



Hah. Argentina, Buenos Ayres {Berg), 2 c5' • Exp., S 64, $ 86 

 millim. 



Larva on Potamogeton and other aquatic plants. 



1689. Maenas bilinea. (Plate XLIII. fig. 21.) 

 McBuas hilmea, Schaus, A. M. N.H. (7) vii. p. 269 (1901). 



(S . Greyish fuscous-brown ; antennae with the basal joint orange 

 at sides ; femora orange abave ; abdomen with lateral orange stripes. 

 Tore wing with indistinct curved dark antemedial line ; a discoidal 

 lunule ; two postmedial lines, excurved from costa to vein 3, then 

 incurved ; cilia with pale points at the veins. Hind wing with the 

 disk rather thinly scaled ; an obscure discoidal lunule ; a more or 

 less distinct curved maculate subterminal line. 



5 . Paler, dull reddish brown ; wings with the markings less 

 distinct. 



Hah. Brazil, Petropolis, typef $ in Coll. Schaus, Castro Parana, 

 1 (S . Exp., 6 44, $ 50 millim. 



1690. Maenas juruana. (Plate XLIII. fig. 3.) 



Motada juruana, Butl. Trans. Ent. Soc. 1878, p. 53 ; Kirby, Cat. Het. 

 p. 225 



(S . Head and thorax fuscous-brown ; antennae with the shaft 

 greyish ; femora above and abdomen dorsally yellow. Pore wing 

 fuscous-brown; traces of a difi'used dark antemedial line angled below 

 the cell ; a dark point in middle of cell and discoidal lunule ; an 



