FTeterocera from Costa Rica. ;>0'J 



and beliind with reddish brown; bhick transverse streaks on 

 hist two segments, also edged witli reddish brown. Wings 

 opalescent white, semihyaline ; ternien white; cilia yellowish, 

 tipped with white. Fore wings : veins opaque, white; some 

 ).>ale reddish-brown streaks on costa and along vein 8 ; spots 

 black, ])artlyedgod with pale reddish brown; a basal spot on 

 costa ; a subbasal small spot in cell and a large spot on inner 

 margin ; ati antemedial outbent line, angled and thicker 

 below cell ; a medial spot in cell; a larger spot across disco- 

 cellular from above subcostal; around postmedial spot from 

 vein 5 to above 6, and a line above it across costa; a large 

 spot from vein 3 to inner margin ; marginal streaks between 6 

 and 8 ; a large spot from 6, tapering to below 4, and a small 

 spot at tornus. flind wings : a spot in cell ; small post- 

 medial spots beyond cell and on inner margin ; subterminal 

 ])oints above and below vein 4 ; marginal spots from vein 4 

 to apex. 



Expanse, S 32 mm., ? 39 mm. 



Hah. Juan Vinas, fSitio. 



Rhectosomia compositalis, sp. n. 



cJ . Palpi light brown, fringed with white at bas9. Ilead 

 and collar pale olive-brown. Patagia whitish, streakel with 

 olive-brown. Abdomen above dark grey on basal half, 

 terminal half olive-brown, dorsally paler. Fore wings : 

 basal third of costa and outer half of iimer margin pale buff ; 

 costa medially white, also a large postmedial white spot and 

 smaller spot beyond ; spaces between spots on costa and cell 

 olive-brown ; a longitudinal black streak at end of cell to 

 l)uff crescent on discocellular, which is followed by a black 

 line, and some mottled dark and white scaling ; a basal white 

 streak below cell; base of inner margin pale buff; abroad 

 black antemedial shade from median to inner margin, shaded 

 wiih lilacine and followed by an inbent olive-brown space, 

 shaded with white just below cell ; beyond this the medial 

 shade is darker and tinged with reddish brown between cell 

 and fold ; a fuscous streak medially along fold is angled and 

 inbent to inner margin; on outer buff space below cell 

 between veins 2 and 3 a long lilacine streak, its ends slightly 

 downcurved, and edged below with light reddish brown ; 

 postmedial space from 3-8 dull olive, becoming darker on 

 ternien ; some elongated, tine, black, curved lines between veins 

 postmedially, followed by lilacine white streaks terminally, 

 edged with dark brown. Hind wings white ; a terminal 

 Ann. d& Mag. N. Hist. Ser. 8. Vol. ix. 21 



