THE GENERAL SUBJECT. 
Ins. 9 
[Packard, A. S.] The Systematic Position of the Orthoptera in Rela- 
tion to other Orders of Insects. Rep. U. S. Ent. Comm. iii. chap, 
xi. pp. 286-345, pis. xxiii.-lxiv. [Cf. Am. Nat. xvii. pp. 820-829.) 
The author incidentally discusses the classification and genealogy of 
Insects. He proposes the following arrangement of the Orders: — 
SUPERORDERS. 
Euglossata (n.) 
Ely tropliora (n. ) . 
EurTiynchota (n.) . 
Phy lop tern (n.) 
Synaptera (n.) . . 
Palmen, J. A. Zur \ 
der Sexual-organe bei den Iusekten. Vorlaufige Mittheilung. Morph. 
JB. ix. pp. 169-176. 
The author’s researches were chiefly directed to the Ephemeridm (q. v.), 
which differ from other Insects in the external openings of the sexual 
organs being double, both in the larvae in all stages, and in both'sexes of 
the imago. As a similar formation is frequently met with among 
Myriopoda , Arachnida , Crustacea , and Vermes, it shows that the Ephe- 
meridce stand very low in the scale of Insects. The structure met with 
in other families of Orthoptera and Neuroptera , as well as in Corethra and 
Chironomus , is briefly noticed, and compared with that of Ephemeridce. 
Porter, C. J. A. Experiments with the Antennae of Insects. Am. Nat. 
xvii. pp. 1238-1245. 
The results arrived at are that the antennae are not the organ of any 
known sense. 
Riley, C. Y. Reports of Experiments, chiefly with kerosene, upon the 
Insects injuriously affecting the orange tree and the cotton plant, 
made under the direction of the Entomologist. Bull. U. S.-Agric. 
Ent. i. pp. 62 (editions i. & ii.). 
orders. 
r Ilymenoptera. 
) Lepidoptera 
v Diptera . . 
Coleoptera . . 
Ilemiptera . 
SUBORDERS. 
Neuroptera. 
( Diptera ( genuina ) 
\ Aphaniptera 
v Pupipara 
( Coleoptera {genuina) 
( Strepsiptera 
r Homoptera 
) Heteroptera 
j Physapoda [Physo-~\ 
v Mallophaya 
r Trichop ter a 
t Planipennia 
j C Odonata 
Pseudoneuroptera -j Ephemerina 
t Platyptera (n.) 
Orthoptera 
Dermatoptera 
c Cinura 
< Symphyla 
l Collemhola 
Thysanura. . 
r ergleichendon Anatomic dcr Ausfuhrungsgauge 
