THYSANURA. 
Ins, 203 
but it is probable that the females increase much in dimensions, and that 
the structure of the anteunoa and fork is modified in them after a moult, 
for the large females are never coupled, and differ in the structure of 
these organs, or possibly this difference is the effect of alternation of 
generations. 
. Sur la fonction du tube ventral des Collemboles. L. c. pp. 1G2 
& 163. 
After reviewing the opinions held by authors on the functions of the 
tube in question, to the effect that it may enable the creature to grasp 
polished surfaces by means of a secreted fluid, or by suction, or may 
enable it to diminish the force of the shock caused in leaping, or to 
right itself if overturned, the writer agrees with none of them. He 
observed that the animals from time to time rub their hairy antennae 
rapidly with the feet ; this results in a drop of clear water, which is 
seized between the claws and conveyed to the mouth ; at this moment, 
the long sacs sent out from the tube at first diverge, but afterwards 
converge, and seize the drop between the extremities, conveying it 
into the tube itself. The friction of the feet and antennae collects the 
moisture from the atmosphere by means of the hygroscopic hairs, and it 
is then absorbed by the tube. 
Podur[o]/iippus pityriasicus, Megnin, fully redescribed (with fig.)> in 
Megnin’s “ Les Parasites,” pp. 102-104. 
Bechia argentea, Lipura^ sp. ?, Gampodea^ sp. n., Lepidocyrtus lanugi- 
nosus and Templetonia nitida, in the Falkenstein Oaves ; S. Fries, JH. 
Ver. Wiirtt. xxxvi. p. 115. 
Campodea. Notes on the species found in the Mammoth Cave of Ken- 
tucky, presumably C. cooldi^ Packard, are given by H. G. Hubbard, in 
Am. Ent. iii. pp. 34 (woodcut) & 79. 
Campodea fragilis^ Meinert. W. S. Barnard, Am. Ent. iii. p. 199, 
records the occurrence of this European species at Ithaca, New York, and 
gives woodcut, with Degeeria lanuginosa, Nicolet, also a European form. 
New genus : — 
LuhbocJcia, g.n. Haller, Z. ges. Nat. (3) v. p. 749, and MT. schw. ent. 
Ges. vi. p. 4. Body cylindrical. Segments unequal. Antennm some- 
what longer than the body, 6-jointed. No scales nor dilated hairs. Two 
strong, slightly curved pairs of spines near the apex of the abdomen. 
Spring-apparatus very small. L. ccerulea, sp. n., id. p. 750, woodcuts 
(MT. schw. ent. Ges. 1. c.), Zurich. 
New species : — 
Lipura aurantiaca, H. N. Ridley, Ent. M. M. xvii. p. 1, Britain. 
Isotoma caeca, Reuter, Scot. Nat. v. p. 207, Orkney ; I. turicensis, 
Haller, MT. schw. ent. Ges. vi. p. 6, Zurich. 
Anurida crassicornis, Reuter, 1. c. p. 208, Perth. 
Achorutes schupplii\_-li, named after Schuppl.— Ed.], Haller, 1. c. p. 3, 
Ziiricb. 
Macliilts hrevicornis, H. N. Ridley, 1. c. p. 2, Britain. 
