Sept. igoo.] DyaR : LiFE-HlSTORY OF LaCOSOMA ChiRIDOTA. 177 



This genus belongs to the Erebiid series, is nearest to Trama in 

 general appearance, and is the first example known to me of the oc- 

 curence of hairy eyes in combination with other characters. Unfor- 

 tunately I had no male. 



Egryrlon filaria, sj). nov. 



Ground color dark chocolate brown. Head, thorax and abdomen without mark- 

 ings. Primaries with the median lines narrow, contrasting pale blue, the t. p. line 

 followed by a bluish shading, which is broader toward the inner margin. The veins 

 as they cross the t. a. line are a little blue powdered a short distance on each side. 

 T. a. line a little outcurved, with a small angle on the subcostal vein, marked on 

 each side by black scales. T. p. line outcurved over the cell, then rivulous to the 

 inner margin. Edged on each side by black scales. S. t. line marked by a series of 

 obscure black spots in the interspaces. There is a series of black, terminal lunules. 

 Reniform small, narrow, upright, a little constricted, outlined by black scales. Sec- 

 ondaries with the t. p. line of pnmaries continued as a sinuate line about three-fifths 

 from base, shaded outwardly by blue scales and inwardly edged by black scales. 

 There is a linear, black, discal mark. Beneath a little paler brown, each wing with 

 a black discal lunule. 



Expands 23 mm. = .92 inch. 



Habitat: Biscayne Bay, Florida (Mr. Slosson). 



One female only, in good condition. The species should be easily 

 recognizable by the clean cut blue lines on the chocolate ground ; the 

 outer is continued across the secondaries. 



NOTES ON THE LARVAL-CASES OF LACOSOMI- 



D-^ (PEROPHORIDiE) AND LIFE-HISTORY 



OF LACOSOMA CHIRIDOTA GRT. 



PLATE VI. 



By Harrison G. Dyar. 



No species of the family Lacosomidse has had its life-history fully 

 written. The best known larva is the North American Cicinnus 

 melsheiinerii Harris, of which the egg, half grown larva and mature 

 larva have been described (see Packard, Ann. N. Y. Acad. Sci., VUI, 

 50). The youngest larvae known seem to live already in a rude case. 

 The same appears to be the condition in Miniallo (nmilia Stoll (see 

 Sepp, Surin. Ylind., pi. 20). Both these species form at maturity a 



