120 ME. E. m'LACHLAN ON NEW FORMS, ETC., 



Wings broad, clothed with moderately dense, short pubescence ; the 

 veins very strong and much elevated. Anterior wings much dilated 

 at the apex, which is obtuse, the apical margin obliquely rounded, 

 the inner margin very concave ; subcosta straight, running into the 

 costal margin ; radius parallel with the subcosta, running into the 

 first apical sector near the apex, joined to the subcosta by a short 

 transverse veinlet ; costal area with the usual basal veinlet, followed 

 by a broadly furcate veinlet, and after this by 4-5 oblique veinlets, 

 all strong and well marked; first apical sector near its base joined to 

 the radius by a veinlet ; discoidal cell long, its apical quarter nar- 

 rowed after the points of departure of the first apical sector, a trans- 

 verse veinlet at about the point of departure of this sector, and another 

 beyond, at the point of furcation of the lower branch of the ramus 

 discoidalis ; cellula thyridii very long, extending nearly to the base, 

 gradually dilated to the point where it is closed by a transverse 

 veinlet; anastomosis complete, situated before the middle of the 

 wing ; apical cells ten in number, very long, the fifth and seventh 

 not reaching the anastomosis, and acute at the base. Posterior wings 

 scarcely so broad as the apical portion of the anterior, obtuse, the 

 apical and inner margins gently rounded, costal margin folded nar- 

 rowly inwards for the greater part of its length ; subcosta and radius 

 separated only at the base and apex ; discoidal cell shorter than 

 in the anterior, similarly formed, but without the supplementary inner 

 veinlet ; forks one, two, three, and five all present ; costulae nume- 

 rous ; cubitus furnished with a fringe of strong oblique hairs, which 

 lie close to the membrane beneath it : marginal fringes scarcely pre- 

 sent in either pair of wings ( $ ). 

 In no other genus am I aware of the existence of the numerous 

 strong costal veinlets here present. It is true that the species 

 of the anomalous family (Estropsidse (Polymorphanisus &c.) 

 present an analogous character ; but in them these veinlets are 

 ill-developed, and have been aptly termed by Brauer, the founder 

 of the family, " false veinlets." Neither am I aware of the exist- 

 ence of a supplementary veinlet in the discoidal cell in other 

 genera. Although I place the genus in the Leptoceridae, I am 

 by no means sure of its position, which can only be decided by 

 the discovery of the male. In fact, several points of structure 

 rather indicate that its true location would be in the Seri- 

 costomatidse, in the vicinity of Barypenthus and Musarna. The 

 form of the maxillary palpi of the female is not inconsistent with 

 its position in either Leptoceridae or Sericostomatidae. 



Perissoneura paradoxa, n. sp. P. atra, capite thoraceque ni- 

 tidis. Pedes picei, genibus calcaribusque testaceis. Abdomen sor- 



