APPLE LEAVES MEALY-WINGED ELY. 97 



with but few veins and veinlets, the hind pair smaller than the 

 anterior, &c, and is separated from both these families by the 

 mealy coating of the perfect insects. Its arrangement in either is 

 evidently incongruous Dr. Burmeister has therefore elevated 

 these insects to the rank of a distinct family, named Conioptery- 

 gidje or Mealy-wings, the single genus Coniopteryx, with its four 

 European species, being all that is at present known pertaining 

 to this family. 



On comparing our insect with those of Europe, although its 

 general resemblance is so close, we notice some important dis- 

 crepancies in its details. The veins of its wings are more simple 

 and less connected by anastamosing veinlets, there being but one 

 of these veinlets in the disk of the wing, and three near the base, 

 arranged in a continuous line, and leaving only the outer and 

 inner veins insulated from their origin to their tips. Thus, while 

 the European insects have three closed discoidal cells, in our 

 insect there is but one. The veins of the hind wings in the 

 European species are forked and connected by veinlets, whilst in 

 ours there are no veinlets, and only one of the veins is forked. 

 Westwood states the wings to be wholly destitute of cilise or 

 fringe-like hairs along the margin, whilst here a series of short, 

 fine erect hairs are very distinct along the apical and inner edges. 

 The eyes moreover are widely notched and kidney-shaped, instead 

 of being round. These differences forbid our including our insect 

 in the same genus with those of Europe. It will therefore form 

 a second genus in this family, for which I propose the name 

 Jileuronia (Greek aXsupov, farina or dust) having allusion to the 

 mealy coating with which these insects are covered. And as Mr. 

 Westwood (through whose kindness my cabinet has been enriched 

 with specimens, particularly of some of the minute and interest- 

 ing species which he has described) was the first to separate the 

 insects of this group generically, this species may appropriately 

 be dedicated to him. Whilst the more simple veins of its wings 

 would approximate this family more closely than heretofore to 

 the Psocidee their ciliated margins give it an additional resem- 

 blance to the HemerobiidsB, and leave the question as to which 



[Assem. No. 215.] 7 



