206 Günther Enderlein, 



are very distiiict along tlie apical and inner edges. The eyes raore- 

 over are widely notched and kidney-shaped, instead of being 

 round. These differences forbid our inclnding- 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 Aleuronia (Greek 

 alevQov, farina or dust) having allusion of the mealy coating with 

 which these insects are covered. And as Mr. Westwood (through 

 whose kindness my cabinet has been enriched with specimens, parti- 

 cularly of some of the minute and interesting species which he has 

 described) was the first to separate the insects of this group generi- 

 cally, this species may appropriately be dedicated to him. Whilst 

 the more simple veins of its wings would approximate this family 

 more closelj' than heretofore to the Psocidae their ciliated margins 

 give it an additional resemblance to the Hemerobiidae, and leave 

 the question as to which of these families the present is most 

 nearly related in much the same doiibt in which it has hitherto been. 

 Westwood's Mealy-^Ving {Aleuronia ivestwoodU) measures one- 

 tenth of an inch to the tips of its wings which project a third 

 of their length beyond the tip of the abdomen, against the sides of 

 which they are held almost perpendicularly when at rest. It is of 

 a blackish color, its abdomen bright yellow of a paler or deeper 

 tint, its legs pale, and the wiiole surface of its body and limbs is 

 dusted over with a wiiite meal-like powder, except the antennae. 

 which are black, thread-like, about two thirds the length of the 

 body, and composed of about twenty-eight joints, whereof the 

 basal is the thickest, and the second is longer than those which 

 succeed, which are all of equal size and short cj^indrical, their 

 length and breadth equal, the apical oval. Tlie head is elevated 

 upon a Short neck in the living specimen and is wider than long, 

 round and flattened in front; the palpi rather long, live-jointed, the 

 apical Joint oval, and as long as the two which precede it taken 

 together; the labial palpi three-jointed, their apical Joint large, and 

 egg-sliaped. Legs of medium size, the bind pair longest, and about 

 equalling the body in length; feet five-jointed, the basal Joint 

 cylindric and forming nearly half of their whole length; the third 

 Joint shortest, the tips ending in two minute hooks. The wdngs are 

 broad, rounded at their ends, with six veins proceeding from the 

 base, whereof the second or rib-vein gives oif two branches, one at 

 the end of the anastomosing veinlet near the base and the other 

 forward of the middle, both of these branches forking rather beyond 



