In the case of six of these nests I had myself acted the part of the landslip and removed the existing door. These original and apparently undisturbed doors measured 31/2, 4, 5, 5, 5, and 5 lines across, and contained respectively 5, 7, 8, 13, 9 and 5 layers of silk; while of the equally large doors which replaced them five contained three layers of silk only, and the remaining nest but a single layer.
[INDEX.]
PART I.—HARVESTING ANTS.
Ælian on harvesting ants, [7-9].
Aldrovandus, radicle of seed gnawed by ants, [9].
Algiers, harvesters observed in, [52].
Aphides and cocci not sought by harvesting ants, [48].
Atta barbara, [15], &c.;
barbara var., [16], [31], [63];
barbata, [12];
cephalotes, [13];
diffusa, [12] (note), [65];
megacephala, [16], working at night, [49];
providens, [12] (note), [65];
rufa, [12] (note), [64];
structor, [16], [29], [63], working at night, [49].
Battles of ants between different colonies of the same species, [37], [40];
with caterpillar, [41].
Capri, harvesting ants at, [68].
Captive ants, [42-49].
Crematogaster scutellaris, [62];
sordidulus, [63].
Dispersal of seeds by means of ants, [4], [21], [53], [55].
Distribution of harvesting ants, [52], [57], [59].
Enemies of the ants, [56].
Formica cruentata, [37], [61];
cursor, [62];
emarginata, [61], working at night, [49];
erratica, [37], [62];
fusca, [51], [61];
marginata, [62];
nigra, [5] (note);
nigerrima, [52];
viatica, [52].
Galls found in ants' nests, [36].
Germination of seeds arrested by ants, [20], [25], [26], [40];
this fact mentioned by Aldrovandus, [9].
Granaries, structure of, [22], [23], [31], [32], [49], [54];
position of, [31];
contents of, [27];
time required to construct, [45].
Insects inhabiting ants' nests, [35], [36], [56].
Jerdon (Dr.) on harvesting ants in India, [12], [64], [65].
Kirby and Spence, assertion that ants do not harvest in Europe, [10].
Mistakes made by ants, [19], [37].
Mouth organs of ants, [48].
Myrmica cæspitum, [37], [51], [63].
Occasional harvesters, [51].
Œcodoma cephalotes, [13];
diffusa, [12] (note), [65];
providens, [12] (note), [65].
Pheidole megacephala, [16], [50], [63], working at night, [49];
pallidula, [51], [63].
Pseudomyrma rufo-nigra, [67].
Radicle of germinating seeds gnawed off by ants, [20], [25], [26];
this fact mentioned by Aldrovandus, [9].
Rock nest, sandstone mined by ants, [32-35].
Rubbish heaps, materials which compose, [21], [22], [55].
Sandstone mined by ants, the rock nests, [31-35].
Seeds, dispersal of, by means of ants, [4], [21], [53], [55];
tendency to germinate arrested, [24], [50];
eaten by ants, [46-48], [54].
Seed stores of ants used as food by natives of India, [67].
Spherical chamber found in ant's nest, [35].
Sykes (Lieut.-Col.) and Jerdon (Dr.) on harvesting ants in India, [12], [64], [65].
Winged males and females of Aph. Structor and Barbara, [41].
PART II.—TRAP-DOOR SPIDERS.
Atypus Blackwallii, [78].
Atypus piceus, [77];
nest of, [78].
Ausserer (A.), description of Nemesia manderstjernæ, [145].
Australia, trap-door spiders in, [114], [130].
Blackwall, on nests of Atypus piceus, [78] (note).
Blackwall, on the tarsi of certain spiders being furnished with a viscous secretion, [87].
British representative of the sub-order Territelariæ, [77].
Browne (Patrick), on the trap-door spider of Jamaica, [73].
Cambridge (Rev. O. Pickard), description of Cteniza fodiens, [89];
of Nemesia cæmentaria, [92];
of N. meridionalis, [101];
of N. Eleanora, [108].
Captive trap-door spiders, [118], [122], [143].
Claws, compared in different trap-door spiders, [86];
retractile, [87] (note).
Construction of trap-door nests, [118], [122], [123], [149].
Cork nests, [80], [88], [94], [97], [116], [124], [131], [132], [141].
Costa (O. G.), on Mygale (Nemesia) meridionalis, [105], [137].
Cteniza ariana, [115], [135], [141];
ædificatorius, [85];
fodiens, [89];
ionica, [91];
nidulans, [81].
Double-door branched nest, [80], [98], [103-106], [131].
Double-door unbranched nest, [80], [98], [106], [111], [131].
Dufour (Léon), on the nest of Lycosa tarentula, [146].
Enemies of spiders, [101], [134].
Epeira fasciata, cocoon of, [76].
Erber, on the nocturnal habits of Cteniza ariana, [115], [135], [141].
Geographical range of species of trap-door spiders, [131], [132], [133], [143].
Gosse (P. H.), on the single-door wafer nest in Jamaica, [80-83].
Instinct (?) of nest building in very young spiders, [123], [126], [128].
Lucas (H.), on spiders having retractile claws, [87].
Lycosa tarentula, M. Dufour on the nest of, [146].
Male of Nemesia Eleanora, [109], [115].
Mygalidæ, name changed to Territelariæ, [75].
Nemesia cæmentaria, [73], [92], [97], resisting when the door is touched, [94-96];
cellicola, [141], [147], [148];
Eleanora, [98], [106], [108], [112];
Manderstjernæ, [147];
meridionalis, [98], [101], [137].
Nest of Lycosa tarentula, [146].
Nocturnal habits of trap-door spiders, [115], [116].
Olivier, on cork nests at Hyères, [115].
Rossi (P.), on Cteniza fodiens, [73].
Resistance of spiders when doors are touched, [94-96], [100], [112].
Saunders (S. S.), on Cteniza (Mygale) ionica, [91], [122].
Sauvages (Abbé), on Nemesia cæmentaria, [73].
Selection of materials for trap-doors, [119], [120].
Sells (W.), on the nest of Cteniza nidulans, [83].
Single-door wafer nests, [80], [131].
Tarsi of spiders furnished with a viscous secretion, enabling them to traverse perpendicular polished surfaces, [87].
Territelariæ a sub-order of Araneæ, formerly called Mygalidæ, [75].
Territelariæ, species of, inhabiting the Mediterranean region, [130], [131], [133], [143].
Theridion, cocoon of, [77].
Trap-door nests enlarged not abandoned, [123], [127], [150].
Walckenaer (C. A. de) on habits of trap-door spiders, [114], [117];
on structure of cork doors, [125] (note).
Wallace (A. R.) on the philosophy of birds' nests, [129].
West Indian nests of the single door wafer type, [80].
Westwood (Prof.) on the nest of Cteniza ædificatorius, [85].
Young spiders found in nests of Nemesia meridionalis and N. Eleanora, [112].