AMERICAN LEPIDOPTERA. 311 



marginal subapical spot reaching to middle of outer margin ; a faint outer line, 

 wavy, subparallel with margin ; hind wings with jet black point a little out from 

 base not far from anterior margin ; a sinuate cross-line of reddish brown near 

 middle, edged outwardly with light ochreous; beneath violet-brown with scat- 

 tered darker scales, with faint indications of two black cross-lines at middle of 

 inner margin on fore wings ; fore tibiae and all tarsi more or less washed with 

 violet-brown. 



One S , South Florida, from Mrs. Slosson, to whom I respectfully 

 dedicate it. 



GEOMETRIN^. 



The Geometrinsc are very closely related to the Sterrhiuse. They 

 consist of the same small frail insects, with the same aspect, and 

 with, in the main, the same structure. They are, however, gener- 

 ally easily distinguished by their color, which has given them the 

 designation " the greens." While the Sterrhinse approach the char- 

 acteristic venation of the Geometrinje, there is no difficulty in sepa- 

 rating them by the position of vein 5 of both wings. These sub- 

 families seem also to divide on the structure of the antennje. So 

 far as I have examined the antennse of the species, which are bipec- 

 tinate in the male, those of the Sterrhinse have the pectinations 

 situated upon the bottom of the segments, while those of the Geo- 

 metrinae have them upon the top. The Geometrinse have the same 

 tendency towards the obsolescence of the hind legs already noticed 

 in the Sterrhinse. 



The larvse, so far as known, are characteristic and peculiar. They 

 are furnished with protuberances on the segments, and have, to some 

 extent, the habit of covering themselves with debris of leaves, thus 

 more effectually concealing themselves. 



The family as limited seems to include more specialized forms of 

 other subfamilies. Among our species, apart from the characteristic 

 venation, there are found some with the distinctive venation of the 

 Hydriominae, some with that of the Sterrhinse, and some with that 

 of the Ennominse. They make distinct sections of the subfamily, 

 and I am not entirely sure but that the genus Annemoria would 

 better be placed with the Hydriorainse. The subfamily is mostly 

 tropical, and our species are few and rarely plentiful. 



I suspect that some of our genera will be found identical with 

 others described from tropical material from both hemispheres, but 

 nothing definite can be determined till types are examined and com- 

 pared, which I have not had the opportunity of doing. The typical 

 genus Geometra I have not found in our fauna. Anaplodes is very 



TRANS. AM. ENT. SOC. XXIII. SEPTEMBR, 1896. 



