The iliac portion of the caud-ilio-femoralis; A B X and B X Y are less common; A X and X Y are rare and occur only in smaller groups, as in subfamilies or genera; B X occurs only in Podiceps.
But there are several subfamilies of ants whose females have the lancets of the sting useless for piercing, although the poison-glands are functional, their secretion being ejected by the insect, when occasion may arise, from the greatly enlarged reservoir, the reduced sting acting as a squirt.
The Bovidae are divided into a number of sections, or subfamilies, each of which is briefly noticed in the present article, while fuller mention of some of the more important representatives of these is made in other articles.
Summarily expressed, Garrod's scheme was to divide the parrots into two families, Palaeornithidae and Psittacidae, assigning to the former three subfamilies, Palaeornithinae, Cacatuinae and Stringopinae, and to the latter four, Arinae, Pyrrhurinae, Platycercinae and Chrysotinae.
About 80 genera with more than 500 species are recognized, divided into the family Psittacidae with the subfamilies Stringopinae, Psittacinae and Cacatuinae, and the family Trichoglossidae with the subfamilies Cyclopsittacinae, Loriinae and Nestorinae.