Article beginning on page 287.
Psyche 8:287, 1897.

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November 189S:I
PS YCHE.
long. Ovisac and form of insect as in is- 9iwnerabzlts. Body grey, with some lighter patches and black spots, giving a mottled appearance which is characteristic. Dried . .
specimens become reddish-brown or greyish. Eggs white.
Antennae usually 7-segmented, the several segments measuring as follows in pp : - (I) 37, (2.1 39- (3.1 54- (4.1 68. (5.1 2.5. (6.1 17. (7.) 42. Formula 4372156. By the
division of 4, the antennae become 8-seg- mented, the measurements in pp being:-
(1.) 39- (2-1 31- (3,) 56. (+) 42- (5.1 25. (6.1 20. (7.) 23. (8.) 45. Formula 38412576, Of
course these measurements vary more or
less in different individuals. Legs ordinary ; front leg with coxa 70, femur 152, tibia, 113 tarsus, 65, claw 20 up. All the digitules filiform, tar4 digitules very long. Marginal spines blunt, 34 to 37 pp long.
Hat.-On TiZia amerfcafia, Melhuen,
Lawrence and Andover, Mass., June 1898.
(G. B. King}. This insect is described as a subspecies of iantd7neraStli5, because it is very closely allied to it, and evidently a comparatively recent segregate. It will
probably be treated as a distinct specics when tlie genus is revised.
The mottled appear-
ance is found by Mr. King to be constant and distinctive. The microscopical chai-ac- ters are nearly those of innumeratilis, but the antenna1 segments seem to be constantly shorter, and the marginal spines longer, than in that insect.
JANET ON MYRMECOPHILOUS ANI-
MALS.
The literature upon myrmecophily is so
extensive and scattered that a work which gives a general survey of the subject is certainly welcome.
Such a desirable work
is Janet's Rapports des animaux myrmfi-
cophiles avec Ies fourmis" {Limoges 1897, 8O), a pamphlet of nearly one hundred
pages, dealing chiefly with insects, in a systematic and comprehensive way, although discussing also certain Nematodes, Isopods and Arachnids.
In view of the fact that almost thirteen hundred specics of myrmecophilous animals are known, the work is necessarily concise, but the author has condensed a large amount of information into a comparatively small a space and has wisely supplemented his
statements at every step by references to original sources of informntion, which
number two hundred titles. The results of other workers are well summarized and
original observations itbound throughout. Those animals only are regarded as truly myrmccophilo~~s which, for whatever reason, actually seek the society of ants and volun- tarily come to live in their nests.
From this
definition, therefore, are excluded Aphids and Lycaenid larvae, certain enemies, en- slaved ants and many insects which mimic ants. Janet considers these, indeed, but devotes special attention to true myrme- cophily, comprising the following categories, each of which is examined in detail: juru- sitism ; ffioresy, denoting the utilization of ants for transportation; ?n~w~ecocle$ty', signifying the theft of food from ants;
synechiry, the consumption of suits as food; symdy, to express the habits of such ani- mals as enter ants' nests for debris, warmth, shelter, etc., have no direct relations with the ants themselves and are tolerated by the latter; and myrmecoxeny, a special kind of symbiosis. . .
Reserving the term symbiosis to imply
mutual benefit, Janet suggests tlic word hamabiosis to signify the habitual dwelling together of two species, for any purpose, with or without evident advantage, either mutual or one-sided.
In this country, myrmecophily offers a
large, fresh and fascinating subject for study,i-equiring not only minute observation and great patience but also considerable mechanical ingenuity.




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