oe ENTOMOLOGICAL NEWS. 137 
mins { that they were not lateral or dorsal ex- 
SiR ies Gre wing-pads occupying positions, exactly simi- 
those of the wing-cases of the Tenebrio pupa. Since this 
s observed Professor Heymons has been able to find a 
m after the appearance of Heymon's frst note, Mr. Busck 
_— i before the Entomological Society of Washington,t 
: of the Dermestid, Anthrenus varius, each of which 
ial well marked wing-pads on the second and third thoracic 
Sat fees caliot our sotexs, Mr. P. B. 
-Goni n). In this the wing-bud invaginates and finally comes to 
_ lie in a closed sac connected with the body wall by a short, 
“le Thus it lies wholly within the body cavity. 
+ Satie ottier hand, the researches of Tower, '03, Powell, ’04, 
Beailothers, ave shown thet in Coleoptera the dominant type of 
"wing development is that which Tower. has designated the 
“simple type.” Here as in the heterometabolous forms the 
_ wing rudiment is ‘not sharply marked off from the body hypo- 
 $Busck, Aug. ‘97. Larve of Anthrenus varius, showing wing pads. 
Proc. Ent. Soc. Wash. iv, p. 123. 
