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antennae moderately pectinated on the basal three-fourths. Palpi very 

 unequal in length in the sexes, usually short and slender; the third joint 

 short and conical, scarcely reaching beyond the front in the male, while 

 they are longer in the female, and, as in Synchlora, of extraordinary length 

 and very slender, including the third joint. The wings are of very uniform 

 shape, the fore wings being triangular with the costa, rather straight ; the apex 

 subacute and the outer edge slightly convex, sometimes slightly bent or very 

 angular. Hind wings round or angular, sometimes partly aborted {Dyspteris). 

 Venation : usually no subcostal cell present, only in Dyspteris, and partially 

 formed in some species of Nemoria. The costal venule anastomoses with the 

 subcostal; six well-marked subcostal venules; the independent venule much 

 nearer the sixth subcostal than usual, the posterior discal venule consequently 

 much longer and more curved than usual. The oi'igin of the first median is 

 usually continuous with the main vein. Hind legs with the tibiae either long 

 and with a dense tuft or projection beyond the end, where the tarsi is very 

 short, or the tibiae are as usual and the tarsi equal to them in length. Some- 

 times but a single pair of tibial spurs. 



The species are green, usually with two common white lines and some- 

 times the front of the head and fore tibiae are a reddish or pink. 



Synopsis of the Genera. 



A. Posterior discal venule not much curved: 



Hind wings partially aborted ; fore wings large Dyspteris. 



Hind wings rounded ; antennae broadly pectinated Encrostis. 



Hind wings angular; antenna; simple Nemoria. 



Hind wings very angular; fore wings acute ; anteunae pectinated lodis. 



B. Posterior discal venule much curved : 



Like Chlorosea, but with more rounded hind wings Anncmoria. 



Species of large size; bind wings produced toward the apex; antennas with long 



pectinations Chlorosea. 



Head broad in front ; female palpi very long; bind wings rounded Synchlora. 



Like Synchlora, but abdomen ornamented with raised white spots circled with red; 



hind wings rounded Racheospila. 



Front of head narrow; palpi short; hiud wiugs angular; abdomen spotted with 



white or red, or with a simple dorsal white line Aplodes. 



Front broader than in Aplodes; outer edge of fore wings more oblique; hiud tibiae 



not swollen Anaplodes. 



Palpi long and stout ; third joint slender ; hiud wings rounded, extending farther 



than usual beyond the tip of the abdomen ; wings with broad, white, straight 



bands '. Geotnctra. 



