. Ants; their structure, development and behavior. A, Isomeralia coronata, female; B,lateral view of same; C, Kapala floridana, male; D, female of same. clean the commensals while they are cleaning their own progeny andshow no signs of even being aware of their presence in the nest. Another case of commensalism is that of the European Antenno-phonis species (A. nhlinanni. pnbcscens, foreli and grandis], studiedby Janet (1897^), Wasmann (1902;) and Karawaiew (1905^ 19060).These mites occur only in the nests of Lasins and cling to the workers 44 ANTS. means of their tliree posterior pairs of
. Ants; their structure, development and behavior. A, Isomeralia coronata, female; B,lateral view of same; C, Kapala floridana, male; D, female of same. clean the commensals while they are cleaning their own progeny andshow no signs of even being aware of their presence in the nest. Another case of commensalism is that of the European Antenno-phonis species (A. nhlinanni. pnbcscens, foreli and grandis], studiedby Janet (1897^), Wasmann (1902;) and Karawaiew (1905^ 19060).These mites occur only in the nests of Lasins and cling to the workers 44 ANTS. means of their tliree posterior pairs of legs while the large fore pairis stretched out and moved about like antenna?. Janet found that thesecreatures, whether present in odd or even numbers, are always orientedin a symmetrical position with respect to their host (Fig. 244). Whenonly one . IiitcnnoChorus is present, it clings to the gula, or of the ants head, with its fore legs directed towards the antsmouthparts. \Yhen two are present, there is one on each side of the. FIG. 250. Orasema viridis. () A, Female; B, male. head or one on each side of the gaster; in the former case the antenni-form appendages are directed towards the anterior, in the latter towardsthe posterior end of the ants body. When there are three mites, oneattaches itself to the gula and the two others to the sides of the place themselves in pairs on the sides of the head and gaster. If TRUE GUESTS, ECTO- AND ENTOPARASITES. 4S six are present, which rarely happens, four are arranged in pairs onthe sides of the head and gaster, while of the two remaining individuals,one attaches itself to the gula, the other to the mid-dorsal surface ofthe gaster. Janet believes that these symmetrical arrangements are forthe purpose of balancing the burden and thus making it easier for theants to carry. When attached to the head the mite obtains its food bydrinking from the regurgitated droplet as it is being passed to or from E
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectants, bookyear1910
