932 On the Genealogy of the Insects. [September 
ON THE GENEALOGY OF THE INSECTS?” 
BY A. S. PACKARD, JR. : 
HE following table will approximately represent: our views as 
to the systematic relations and genealogy of the ten orders 
of six-footed insects, and is also in general accord with their — 
metamorphoses : Fo Bs 
X. HYMENOPTERA. 
1X, LEPIDOPTERA, 
VIII. DIPTERA. 
1, Platyptera. 
VII. COLEOPTERA, Termitide 
OT Pae sie : h = 
Ae Psocide. . i 
T; nitetiepa, é | 
s T Hemer KA Perlina. 
\ | 
| 
V. Pš5EUDONEUROPTERA. 
2. Odonata. ; ai 
A s i 
anita he III. ORTHOPTERA, 
V. NEUROPTERA, \ 
II. DERMATOPTERA, 
Metabola. | 
I. THvsanora. 
(Campodea.) 
I. Thysanura—This. order comprises some lost type 
resembling Lepisma, Campodea and Japyx, and more 
Scolopendrella, the probable stem-form of 
other words, from a hypothetical form resem 
Scolopendrella, it is not difficult to suppose that . 
majority of Hexapoda took their origin. It is possible that 
few intermediate steps now lost, Forficula may have de: p 
from the Thysanuran Japyx; this is suggested by the form : 
l From advance sheets of the third report of the U. S. Boua o 
mission. 
