98 
ENTOMOLOGICAL SOCIETY 
SERRIFERA. 
Siricidae 
Braconidae 
Ichneumonidae 
Trigonalidae 
Stephanidae 
Evaniidae 
Chalcididae 
SEC. i : Macrocentri 
* 
Eucharinae 
Perilampinae 
Eurytominae 
Aximinae 
Chalcidinse 
Leucospidinae 
Toryminae 
Eupelminae 
Encyrtinae 
Cephidae 
Tenth redinidae 
Aphelininse 
* * 
Pireninae 
Tridyminse 
Spalanginae 
Blastophaginae 
Pteromalinoe 
SEC. 2 : Microcentri 
Tetracampinse 
Elachistinae 
Elasmime 
Eulophinae 
Entedoninai 
Tetrastichinze 
Trichogramminse 
Mymarida? m. 
It will be seen that the Mymarince have been removed from the family 
Proctotrupidce ; the ovipositor does not issue from the apex of the abdo- 
men, and they have other characters that exclude them from that group. 
The English hymenopterist, A. H. Haliday, many years ago, recognized 
this fact and placed them among the Chalcididce ; but his views, apparently, 
were not accepted, for all late systematists let them remain undisturbed 
among the Proctotrupidce. From a study of several of the genera I feel con- 
vinced Mr. Haliday was nearly right in placing them with the Chalcididjc. 
Among them are the smallest and most degraded hymenopters known, 
and, while allied in habits to the Chalcididae, in structure they offer char- 
acters that seem to me to entitle them to family rank. 
In venation and the fore wings of some of them there is a remarkable 
resemblance to certain forms among the Trichogrammince, the lowest group 
of the Chalcididce, and I have therefore assigned them a position after 
that group. 
The following table maybe used to separate these three families : 
Hind wings linear, 2 
Hind wings not linear; 
ovipositor issuing from the extreme tip of abdomen, PROCTOTRUPIDCE. 
ovipositor issuing from the middle of venter, . . . CHALCIDIDCE. 
2. Ovipositor issuing subapically, MYMARID^E, m. 
With the Mymarince removed the Proctotrupidce form a natural group 
closely connected with the parasitic Cynipidce through the Diapriince and 
Eucoilince. 
