{180}The specimens of female Dorylides that have been detected may, after fifty or sixty years of research, be still counted on the fingers. As the greatest confusion exists in entomological literature owing to the forms of a single species having been described as two or three genera, the following summary of the principal names of genera of Dorylides may be useful:— _Eciton_ = the workers, _Labidus_ = male: ♀ unknown. _Pseudodicthadia_: female only known, possibly that of _Eciton_. _Cheliomyrmex_: workers and soldiers only known. _Aenictus_ = the male, _Typhlatta_ = worker: ♀ unknown. _Rhogmus_: male; female unknown. (According to Emery the worker is very small and like _Alaopone_.) _Anomma_: only worker known; male probably a _Dorylus_. _Dorylus_ = male; _Dicthadia_ = ♀: _Alaopone_ and _Typhlopone_ = workers. SUB-FAM. 6. AMBLYOPONIDES.—_Abdomen destitute of distinct pedicel; the articulation between the first and second segments behind the true petiole being broad._ [Illustration: Fig. 81—_Amblyopone_, worker. Tasmania.] We follow Forel in separating _Amblyopone_ and a few allies from the Ponerides, because the abdominal pedicel is more imperfect than in any other ants. It is, indeed, very difficult to frame a definition that will include the Amblyoponides among ants, and at the same time separate Formicidae and Scoliidae. Forel considers the Amblyoponides to approach closely to certain divisions of the Scoliidae (Thynnides, _e.g._). Little is known of these Insects, though they are widely distributed. _Amblyopone_ is found in Australia and New Zealand; the allied genus _Stigmatomma_ has a wide distribution, occurring even in Europe. The social life is believed to be imperfect, and the habits subterranean and sedentary. The males and females are winged; the latter much resemble the workers, which are nearly blind, and have a considerable general resemblance to _Anomma_ in Dorylides. ASSOCIATION OF ANTS WITH OTHER KINDS OF INSECTS.—We have already alluded to the fact that a few species of ants are {181}used by other species as attendants, and that the two kinds then live together quite amicably; and we have also seen that a few ants live in association with other species on terms that are not yet understood. One little ant, _Formicoxenus nitidulus_, lives only in the large nests of _Formica rufa_; these ants tolerate the little _Formicoxenus_, which so far as is known does them neither good nor harm. There are also a considerable number of species of small ants that are in the habit of choosing the neighbourhood of larger species for their dwelling-places; in some cases the nests are constructed actually within a portion of the edifice of the more powerful species, and the rule then appears to be that these neighbours do not molest one another. Notwithstanding the militant lives that many of them lead, ants cannot be considered as of generally ferocious disposition.