1886.] 287 [Hagen. 



M. insipidus has the external gradate longer, and always the second 

 more remote to the apex of the wing. M. Cubanus has the sec- 

 ond in the same line with one to four, which form a vertical line and 

 not an oblique one as in M. insipidus ; the external gradates are 

 deep black ; abdomen yellow ; only the sharp inferior spines are 

 to be seen, their tips longer than the valve ; but I am not able to 

 see that the spines are dilated before the apex as in M. insipidus ; 

 the upper valve is split from below. 



Hab. Cuba ; one <J from Gundlach, no. ff of his catalogue. 



I would not have separated this species, but the lack of mottled 

 brown on the front wings, the five sectors and the external gradates 

 which are deep black, vertical in the beginning, the yellow abdo- 

 men and the not dilated spines seem to be characters sufficient for 

 the separation. 



10. Micromus angustus n. sp. 



Micromus angustus Hag. 



Long. c. al. 7 mm. ; exp. al. 13 mm. 



Head and prothorax yellowish with white villosity, with brown- 

 ish spots above in older specimens ; palpi pale, last joint blackish, 

 somewhat dilated ; antennae yellow, half as long as the wings ; 

 legs pale, whitish. Abdomen dark grayish brown ; all specimens 

 seem to be males ; the genitals are not to be seen ; a short, leaf- 

 shaped ventral process is to be seen ; in one specimen what seems 

 to be the tip of the penis is a little prominent. Wings long, nar- 

 row, nearly four times as long as broad, apex elliptical ; hyaline, 

 a little fumose ; veins alternately yellow and black, the gradate 

 veins, the base of the sectors, some little spots around the mar- 

 gin and a more visible one in the middle of the wing nearer to 

 the basis black ; four sectors ; five irregular gradate veins in the 

 external series, four in the internal ; hind wings similar in length 

 and size, hyaline, veins yellowish, four external gradate cells 

 larger. 



Hab. Haulover, Florida, 2, March 2 and 4 ; Capron, Florida, 

 2, April 14 and 25, both from H. G. Hubbard ; Morganton, North 

 Carolina, 2 from Mr. Morrison. 



This small, narrow species can not be confounded with other 

 North American forms ; the older ones are darker, also the veins 

 in the hind wings. It is near M. linearis from Ceylon. 



