438 Mr. S. A. Rohwer on some 



separated from the last-mentioned genus by the obsolete 

 antennal furrows and by having the hind basitarsus shorter 

 than the following joints. 



The species which belong here have not been fully described, 

 and seem to be closely related. The following key, which is 

 based on literature, may aid in distinguishing the forms 

 described : — 



Key to the Species. 



Hind femora black ; antennae 15-jointed (Kirby's 



figure)' nigripes (Smith). 



Hind femora reddish ; antennae with less than 15 



joints 1. 



1. Markings of the fore legs " sordid white " ; 



antennae 13-jointed. (Aru.) varipes, Cameron. 



Markings of the fore legs ferruginous; an- 

 tennae 12-jointed. (New Guinea.) wollastoni, Rohwer. 



Ancyloneura wollastoni, sp. n. 



In the absence of the first intercubitus this species differs 

 from the recognized generic characters, but in all other ways 

 it agrees with my notes and with the description. 



Female. — Length 4*5 mm. Shining, without apparent 

 sculpture; median fovea rather deep, elongate, linear; post- 

 ocellar line slightly shorter than the ocelloccipital line; post- 

 ocellar area not defined anteriorly and defined laterally by 

 rather broad depressions ; antennae 12-jointed, the third 

 joint slightly longer than the fourth and fifth ; from the 

 third joint the joints gradually decrease in length until the 

 eleventh, which is subequal in length with the twelfth ; 

 eleventh joint a little more than twice as wide as long ; 

 stigma about three times as long as greatest width, angulate 

 near base and tapering to a narrow apex ; first intercubitus 

 wanting ; third cubital cell as long on the radius as the 

 combined first and second ; second recurrent about two- 

 thirds the length of the second intercubitus from the base of 

 the third cubital cell ; sheath concealed ; lower apical margin 

 of lancets with regular rounded teeth. Black ; apical part 

 of femora (more extensively on posterior pair), anterior tibiae, 

 base of anterior tarsi, basal two-thirds of intermediate tibiae, 

 and basal half of innd tibiae ferruginous ; wings brown 

 apically, hyaline basal ly ; venation dark brown. 



Type-locality. Iwaka River, New Guinea. 



Described Irorn one female, collected February 1911 by 

 A. F. R. Wollaston. 



Type. British Museum (Natural History). 



