60 INSECUTOR INSClTLt MENSTRUUS 



of the hind wing is somewhat reduced in size, being about two-thirds the 

 size of vein 4, and arises slightly below the middle of the discocellulars. 

 If placed in the Acronyctinae, it falls by Hampson's tables into Bagisara 

 Walker ; if in the Erastriinae, into Eustrotia Hubner. Where the differ- 

 ential character is so nicely balanced and the larva unknown, characters 

 of facies may properly be considered. The colors and style of macula- 

 tion suggest Palindia merta Schaus ( = Homop^ralis albifasciata 

 Schaus). This species is now placed in Lithacodia, which is the genus 

 next to Eustrotia in the Erastriinae. The indications are, therefore, that 

 the form under discussion belongs to the Erastriinae. It may be separated 

 from Erastria by the position of vein 5 of the hind wing, which zirises 

 considerably nearer the middle of the cell than in that genus. I therefore 

 propose the new generic term Brabantia, in honor of the describer. 

 Brabantia rhizoleuca was described from females, as the description 

 shows, although not so stated. I possess a male, which shows some 

 peculiar differences. The hind wdngs are white with a brown border, 

 widest at the apex, not entirely brown as in the female. The palpi have 

 the third joint short and thick, not as long as wide, whereas that joint in 

 the female is markedly long, nearly half as long as the second joint, 

 which reaches the vertex of the head, thus presenting a marked structural 

 difference in the sexes. 



FOUR NEW SPECIES OF NORTH AMERICAN 

 CHLOROPIDi^ 



{Diptera) 

 By J. R. MALLOCH 



Tricimba spinigera, new species. 



Female : Frons opaque, black-brown, anteriorly yellowish, breadth at 

 vertex slightly less than at anterior margin, at narrowest part rather more 

 than one-third the width of head ; ocellar region and frontal triangle 

 shining black, the latter very short, not exceeding one-half the length from 

 vertex to anterior margin, a central, pale line canied from anterior angle 

 of triangle to anterior margin of frons ; surface hairs short, sparse, pale ; 

 antennae small, half hidden below the slightly projecting frons, yellow, the 

 third joint sometimes browned above ; arista brown, pale at base, the 

 basal two joints hardly swollen, bare ; face yellow, concave in profile. 



