\'ol. XXX ] ENTOMOLOGICAL NEWS 65 



of Gryllohlatta and Embia major Imms adds further sup- 

 port to the contention that the Grylloblattids are quite closely 

 related to the Embiids, as was pointed out in the June, 1917, 

 issue of The Canadian Entomologist (page 213). 



In Ent. News, \^ol. 26, page 337, attention was called to the 

 resemblance of the tergal thoracic plates of Gryllohlatta to 

 those of the Dermapterous representatives of the superorder to 

 which the Embiids also belong, and the lateral thoracic sclerites 

 of the Grylloblattids are very like those of the Embiids, al- 

 though it must be admitted that the lateral thoracic sclerites 

 of Gryllohlatta are also quite like those of the Isoptera, and 

 the ventral thoracic plates resemble those of the Zoraptera 

 and Mantids as much as those of any other insects. 



The legs of Gryllohldtta are quite like those of the Blattids 

 (and Zoraptera) ; but I fail to find any other marked Blattid 

 features in the Grylloblattids — although the investigations 

 of Dr. Walker (who is at present working upon the anatomical 

 details of the recently discovered males of Gryllohlatta) may 

 bring to light other Blattid-like characters in the Grylloblattids. 

 The cerci of Gryllohlatta are very like those of certain Plecop- 

 tera in regard to the relative lengths of the component seg- 

 ments, etc., as was pointed out in a paper published in Vol. 

 25 of the Journal of the New York Ent. Society (page 225), 

 and I also find a marked resemblance between the cerci of 

 Gryllohlatta and those of the immature Dermaptera, such 

 as ''Dyscritina" longlsctosa, Diplatys, Karschiella and other 

 earwings in which the forceps of the adult are preceded by 

 segmented cerci in the nymphal stages. On the other hand, 

 Ihe cerci of Gryllohlatta also resemble those of the Man- 

 tids to some extent. The ovipositor of Gryllohlatta could 

 easily be derived from the type found in certain Dermaptera 

 such as Bchinosoma; but on the whole, the ovipositor of 

 Gryllohlatta is more like that of certain Mantidae. 



From the foregoing discussion, it is evident that Gryllohlatta 

 resembles the Panplecoptera in regard to the least-varying 

 structures, while in regard to its body as a whole (with the ex- 

 ception of the body contour and its slender nature in which it 



