1883.] ZYG^NID^ AND ARCTIIDiE. 377 



GyMNELIA TORaUATUS, n. sp. 



Wings hyaline : primaries black for one third of length from the 

 base ; costal, outer, and inner margins black ; apex broadly black ; 

 veins all black : secondaries black at the base, also the inner and 

 outer margins : head, thorax, and basal half of the abdomen black, 

 the anal half bright scarlet ; antennae black, tipped with white ; legs 

 black ; tarsi spotted with white. 



Expanse 2 inches. 



Hah, South-east Brazil, Petropolis. 



This fine species to some extent resembles Dasysphinx mucescens, 

 Felder ; it is much the largest species in the genus. I am indebted 

 to Lord Walsingham for this interesting addition to my collection. 



CosMOSOMA, Hiibner. 



COSMOSOMA OMOLE, n. Sp. 



Wings hyaline; primaries the same as in C. confine, Her.-Schaf., 

 except that they are black at the base instead of orange-red ; secon- 

 daries yellow on the inner margin, but in all other respects the same 

 as C. confine: head and front of thorax black ; abdomen bright yellow, 

 the last three segments brilliant bluish green; antennae black; legs 

 yellow ; tarsi black. 



Expanse 1 inch. 



Hab. Ecuador, Sarayacu {BucTcley). 



This species is allied to C. confine, the wings being very much 

 the same, the great difference being the yellow abdomen, instead of 

 blue spotted with red. 



CoSMOSOMA UFENTINA, U. Sp. 



Allied to C. auge, but the primaries rather longer and the black 

 outer margin much wider ; head black; thorax and abdomen yellow 

 instead of bright red ; the blue markings the same as in C. auge ; 

 antennae black, the tips white ; legs black. 



Expanse 1| inch. 



Hab. Bolivia (Buckley). 



This is a very distinct species, allied to 0. auge, Linn. 



Dycladia, Felder. 

 Dycladia felderi, n. sp. (Plate XXXIX. fig. 9.) 



Wings hyaline ; primaries with the apex black, slightly yellow at 

 the base ; head, thorax, and abdomen pale sulphur-yellow ; a central 

 row of minute black spots commencing close to the thorax and ter- 

 minating near the anus ; antennae black ; legs pale yellow. 



Expanse I^ inch. 



Hab. Ecuador, Intaj (Buckley). 



This species is allied to Dycladia batesii, Butler, from which it 

 differs greatly in colour and extent of the black at the apex of the 

 primaries. Specimens have lately been received from Mr. Cham- 

 pion, who obtained them in Guatemala. 



