220 ON SYSTEMATIC ZOOLOGY. 
disposed around it. No attempt, however, is made to 
show that there are seven primary divisions in the 
animal kingdom, or in the division of Annulosa ; but 
the order of Lepidoptera is selected as more especially 
containing seven groups; and to the same number, of 
course, our author restricts the class of Insecta. The chief 
object which Mr. Newman seems to have in view, is that 
of connecting the six minor divisions with the seventh or 
typical one, which he places in the centre. <A glance 
at his table of the classes of Znsecta will enable the ex- 
perienced entomologist to decide at once how far he 
has been successful in this effort. The Newroptera is 
his central circle, round which he places the following 
genera:—1. Mantispa; 2. Psocus; 5. Psyche; 4. 
Cloton ; 5. Termes ; and the 6. he states as unknown. 
These, then, are neuropterous genera: let us now see 
how they are supposed to be connected with the other 
orders ; or, as they are termed, the classes of insects. 
1. Mantispa passes into the Orthoptera by Mantis. 
2. Psocus Hemiptera Aphis. 
3. Psyche Lepidoptera Tinea. 
4. Cloéon Diptera Chironomus. 
5. Termes Hymenoptera Formica. 
6. Coleoptera unknown, 
(270.) The Neuroptera are defined in these words :— 
“* Class 7. Central, partaking of the characters of all the 
others.” (p. 27.) In what manner these insects form a 
circle of their own, so that Mantispa is connected to 
Psocus — Psocus to Psyche — Psyche to Cloton — 
Cloéon to Termes —and by what link of affinity we are 
again to reach Mantispa, after leaving Termes, is not 
mentioned. Thejmode in which the external orders 
or classes are connected, the author has not explained ; 
how, for instance, we can pass from the Lepidoptera 
to the Diptera, and so on? The diagram of the sub- 
classes of Lepidoptera is a little more filled up. Here 
we find Papilio passing on one side into. Geometra 
by means of Leilus, Sw. (Urania, Fab.) and Ouropterya, 
Leach. The union of Papilio with the Bombyces is 
