﻿120 [October, 1809 



1. Cnxemidophoeus (Wallengren) . 



AntennaB of both sexes with very short cilia. Forehead without any tuft, 

 only a few slightly prominent hairs between the antennae. Palpi not longer than 

 the head, the intermediate joint thickened with down, the last joint short and 

 pointed. Legs short, all the tibise thickened towards the apex by a tuft of scales ; 

 the posterior tibise thickened in the middle. First pair of spines in the posterior 

 tibiae slender and very unequal, second pair nearly equal. Anterior wings not 

 divided to a third part of their length, the segments broad, the posterior segment 

 almost hatchet-shaped, the posterior angle of both segments well marked. The 

 divisions of the inferior wings wide, the third segment with the anal angle distinct. 

 The anterior wings flat, covering the inferior, the inner margin not toothed. 



This genus contains only one Swedish species, found also but 

 rarely in the south eastern part of our island, viz., CncentidopTiorus 

 rhododactylus. That this insect is rightly separated from the genus 

 Platyptilus of Zeller there can be no doubt ; the difference in the palpi 

 alone would be sufficient for this. The name seems taken from the 

 thickened tibise ; but why the diphthong should be used and the word 

 written Cncemidopliorus is to me unintelligible. 



2. Plattptiltjs (Hiibn.) (Zeller). 



Antennae of both sexes with very short cilia. Forehead adorned with a more 

 or less elongated tuft. Palpi longer than the head, rather rounded, slightly ascend- 

 ing, with the last joint more or less elongated, sometimes a little drooping. Legs 

 longer, slender, the tibiae sometimes slightly thickened towards the apex. First 

 pair of spines in the posterior tibiaa slightly unequal, second pair almost equal, 

 shorter than the shortest spine of the first pair. Anterior wings not divided to 

 the third part of their length, the segments broad, the posterior segment almost 

 hatchet-shaped, the posterior angle of both segments well marked. The segments of 

 the inferior wings more slender, the third division with the anal angle sufficiently 

 marked, but nearer to the base. The anterior wings flat, covering the inferior when at 

 rest. The veins of the anterior wings ten in number ; 1st and 2nd separate, coming 

 from the base, the 3rd from the posterior margin of the cell, the 4th and 5th from 

 the posterior angle of the cell, all running into the posterior segment, the 6th 

 coming out near the anterior angle of the cell, and running into the posterior angle 

 of the anterior segment, the 7th two-branched, coming out from the anterior angle 

 of the cell, and running into the apex of the anterior segment, the 8th and 9th 

 coming out from the anterior side of the cell and running into the anterior margin 

 of the wing, the 10th coming from the base and ending almost in the middle 

 of the anterior margin. The cell well marked, with a very slender little transverse 

 vein, almost straight, closed. Veins of the posterior wings three in number ; the 

 1st coming from the base, two-branched running into the anterior segment, the 

 2nd three-branched, running into the second division, and the 3rd simple, running 

 into the third division. No cell. 



