Vol. XXvii] ENTOMOLOGICAL NEWS. 25! 



Forficulid Labidurodcs} . I have not seen specimens of 

 "Hadotermes japonicus" described by Hagen 1868 (Proc. 

 Bost. Soc. XI, p. 399), but Sharp (Insects, Part I) states that 

 this insect described by Hagen as a Termite, is really a Forfi- 

 culid, so that this Forficulid must be very similar to the 

 Termites, if Hagen was deceived by it. The H emiwierus-\\Vx. 

 forms represent an off-shoot from the Forficuloid line. The 

 Hemimeroides are not represented in the diagram, but their 

 affinities are undoubtedly strongly Forficulid, though they 

 may perhaps represent a distinct order called Dermodermap- 

 tera by Verhoeff. The term Dermaptera, applied to the For- 

 ficulids, may possibly be restricted to another group of Orthop- 

 teroid insects, on the grounds of priority; if this be necessary, 

 the later term Euplexoptera might be applied to the Forficulid 

 group. 



The Embiidae as a whole, are extremely closely related to 

 the Perlids, perhaps more nearly than to any other group of 

 insects. The wingless females of Einbia major Imms are 

 exceptionally favorable for comparison with the wingless fe- 

 males of Grylloblatta and Timema, and their unusually large 

 size and well pigmented sclerites makes the study of their 

 structural details a comparatively simple matter, although the 

 more primitive genus Clothoda would doubtless be of greater 

 importance from the standpoint of the determination of the 

 genealogy of the group. A study of Einbia has convinced me 

 that the Grylloblattoid, Embioid, Forficuloid, Termitoid and 

 Phasmoid lines of descent all converge upon the Perloid line. 

 Furthermore, the Embiids combine characters common to the 

 Termites and Forficulids (with the Grylloblattids), so that 

 they may be considered as occupying a position somewhat 

 intermediate between the Forficulids and Termites, as shown 

 in the diagram, although their closest affinities are with the 

 Perlid group. I formerly (Ent. News, Vol. 26, p. 346, etc.) ap- 

 plied Packard's term, Platyptera (used in the restricted sense) 

 to the Embiid order, but I find that the designation Platyptera 

 was applied to the Diptera by Meigen, 1803, and to the Pisces 

 by Cuvier 1837, long before Packard applied it to the Orth- 

 opteroid insects, so that it is mrt-^sary to change the term 



