1913] 
GiitAULT: Chalcidoid Family Trichogrammatidae 
175 
Calleptiles ; so after all it is the former genus that is really omitted 
though the proposed new genus Xanthoatomus is evidently none 
other than it. I reproduce herewith the entire discussion of the 
family : 
Family LXXII, Trichogrammidae. 
1846. Eulophidae, Family II, (partim), Walker, List Chalc. Brit. Museum, 
I, p. 62. 
1856. Trichogrammatoidae, Family XXII, Forster, Hym. Stud., II, pp. 20, 
26 and 87. 
1897. Trichogrammatinae, Underfam., Aurivillius, Entom. Tidsk,. 18, p. 
250. 
Dr. Arnold Forster was the first to recognize this natural family, which 
is at once distinguished, from all other groups, by the tarsi being 3-jointed, 
never more nor less. 
It comes nearest to the Family Eulophinae, where Westwood placed his 
genus Trichogramma in 1840, and apparently forms a connecting link between 
that family and the next, or the Mymaridae. 
In habits the group agrees with the Mymaridae, all the species falling in 
it being egg-parasites. 
Two subfamilies have been recognized : 
Table of Subfamilies. 
Wings without regular rows of hairs Subfamily I, Oligositinae. 
Wings with regular rows of hairs Subfamily II, Trichogramminae. 
Subfamily I, Oligositinae. 
In the arrangement of the pubescence of the wings this group resembles 
most closely the Eulophinae, and many of the species, but for the 3-jointed 
tarsi, could be easily mistaken for species in that family. 
Only five genera have been described, but it is probable that very many 
more exist and will be discovered when more attention is given to rearing 
the egg-parasites of the different orders of insects. 
Table of Genera. 
1. Females 2 
Males 6 
2. Antennae 6- or 7-jointed with one ring-joint 3 
Antennae 8-jointed with one ring-joint, the funicle 2-jointed. 
Asynacta Forster (type unknown). 
3. Antennae 6-jointed 5 
Antennae 7-jointed, with a ring-joint. 
Ovipositor not prominent 4 
Ovipositor prominent, at least half the length of the abdomen; 
eyes oval; pedicel obconical, more than twice longer than thick; 
