32 THE ENTOMOLOGIST. 
“ June.—Megastigmus dorsalis, 5 males and 1 female. 
Pteromalus Naubolus and ovatus, 179. Eupelmus urozonus, 
3 males and 5 females. ‘Tetrastichus Diaphantes, 128. 
“Summary of Species and Specimens.—Coleoptera, 9 
species ; 191 specimens, and upwards. Orthoptera, 1 species ; 
5 specimens. Neuroptera, 2 species; some hundreds of 
specimens. Hymenoptera (Cynipites), 4 or 5 species; 
30,246 specimens. Hymenoptera (Parasitic), 45 species; 
24,417 specimens, and upwards. Diptera, 3 species; 23 
specimens, and upwards. Lepidoptera, 5 species; 9 speci- 
mens, and upwards. Hemiptera, 5 species; 51 specimens, 
and upwards. Arachnida and Acari, 5 or 6 species; a few 
specimens. ‘Total—species, 75; specimens, 55,000 and 
upwards. 
“All the Coleoptera, Orthoptera, Neuroptera, Diptera, 
Lepidoptera, Hemiptera, and Aptera, with the exception of 
Balaninus Glandium and Drosophila, were probably acci- 
dental visitors. 
“'Teras Quercus-terminalis is the cause of the formation 
of the oak-apples, in each of which a great number of its 
larve reside; sometimes sixty flies or upwards emerge from 
an oak-apple. It varies exceedingly in size, but usually all 
the individuals produced from one oak-apple are of one sex, 
and of the same size. Sometimes the habits of the larva are 
solitary, and it then lives in two other kinds of galls that are 
formed on oak-leaves. 
“ Synergus socialis is one of the ‘ Inquilini,’ or dwellers in 
hired houses, as some of the Cynipites have been termed. 
“Pteromalus Naubolus is, perhaps, only a variety of 
P. semifascia.—Lrancis Walker.” (Zool. 1846, p. 1454.) 
“ Notes on Oak-apples.—The plan of creation requires a 
continual appearance and disappearance of material exist- 
ence. Each form of life is from dust; and having performed 
its part, or completed its circle, returns to dust, which is 
again gathered up into new creatures; and these numberless 
and ever-varying circles constitute the great round of exist- 
ence, and the whole work is preserved in order by the control 
which the parts exercise upon each other. The oak-leaf falls 
and returns to dust, which serves for the growth of the oak, 
and, in process of time, is developed again into leaves. In 
other cases the circle of existence is less simple, and two 
