INVESTIGATIONS ON SCIAPHILA WAHLBOMIANA, ETC. 69 



Editorial Note. — It is with regret that in the description 

 of the position of the larval warts (p. 61), I have been 

 obliged to alter the numbers of the segments from those 

 printed in the Stettin. Ent. Zeit. I wish all Entomologists 

 would bear in mind the following axioms as laid down by 

 some of the very first authorities in Entomology: — 



" Der Kopf nimmt immer den ersten der dreizehn 

 Leibringe eiu." 



Burmeister, Handhuch der Entomologie, vol. i. p. 42. 



" The head always occupies the first of the thirteen seg- 

 ments of the body." 



Sliuc'kard'' s Traiulatioii of Burmeister, p. 35. 



" The larvae, which are commonly called caterpillars, are 

 long and cylindrical, composed of 13 segments, of which the 

 anterior represents the head of the imago," &c. 



Westwood's Introduction to the Modern Classification of 



Insects, Yol. ii. p. 319. 



" The first segment is the head." 



Nejvmaii's Familiar Introduction to the History of Insects, 



p. 340. 



If the head be the first segment, the segment behind the 

 head is the second, and so on. Much confusion in descrip- 

 tions of larvae is caused by this simple fact being overlooked. 



