HYDROPHILTDil):, PAUSSJD/R. 
Ins. 29 
Ilydrohius glahricollis, 'Schauf., = hqmstulatus, Msh. ; Martinez y 
Saez, An. Soc. Ep. v. (Act.) p. 23. 
Limnehius picinus, Marsh. (a^o?riM5, Duft.), and sericans, Muls., differen- 
tially and very fully described; J. Gerhardt, Deutsche E. Z. 1876, 
pp. 163-166. L. sericans, Muls., is, however, the same as Marsh., 
and atomus, Duft., must stand for the other species; G. Kraatz, 1. c.- 
p. 166. 
Helophorus rugosus : larva described by E . Perris, in Gobert’s Cat. 
Col. Landes, fasc. 3, p. 78 ; also in Ann. Soc. Ent. Fr. (5) vi. p. 183 ; it 
was found in turnip roots, in the gallery of a larva of Psylliodes, on 
which it fed. 
Helophorus cequalis, planicollis, brevicollis, and strigifrons, Thoms., 
recorded from Britain ; T. Blackburn, Ent. M. M. xiii. pp. 39 & 40. 
II. laticollis, Thoms., also (dubiously) recorded from England; E. C. 
Rye, 1. c. p. 40. 
Ilemisphcera, g. n., Pandell4, An. Soc. Esp. v. p. 57. Antennae with only 
7 apparent joints, the second joint sub-globular : facies of Cyllidium or 
Anaccena. For II. injima, sp. n., id. 1. c. p. 58, pi. i. fig. 5, Madrid. 
Philhydrus primoivus, sp. ii. (foss.), S. H. Scuddof, Bull. U. S. Gool. 
Surv. ii. p. 78, tertiaries of Wyoming. 
Berosus mixius, sp. n., C. O. Waterhouse, Ann. N. H. (4) xviii. p. 114, 
Rodriguez Island. 
Limnehius fussi, sp. n., J. Gerhardt, 1. c. p. 167, and Z. E. Ver. schles. 
(n. f.) V. p. 34, Cleves and Liegnitz. 
Ochthebius torrentium, sp. n., Coye, L’Ab. 1876, livrn. 4, p. 370, Syria. 
Cyclonotum marginale, sp. n., D. Sharp, Ent. M. M. xiii. p. 21, New 
Zealand. 
Paussip.®. 
Dohrn, C. a. Ueber australische Paussiden. J. Mus. Godeffr. xii. 
pp. 48-55. 
A myrmecophilous habit is not yet ascertained for Australian species ; 
in almost all, the detonating power has been observedV They occur in 
dead wood, and come to light. General observations of a somewhat 
bewildering nature, with no definite result, are made on various species 
of Macleay aud Westwood. 
Paussus lives very rarely in formicaria, and there appear to be no rela- 
tions between it and the ants. Its detonating power described ; the gas 
does not stain the skin or feel warm. Received in a glass tube, it 
deposits a yellow crystal, similar to that formed by the phosphorus of a 
lighted match, and this crystal cauterizes the tongue. A few observa- 
tions are made on habits. A. Raffray, “ Abyssiuie ” (Paris : 1876, 12mo), 
pp. 114-117. Raffray’s observations reproduced, with comments ; C. A. 
Dohrn, S. E. Z. xxxvii. p. 333. 
Paussus certainly crepitates, like Brachynus ; L. Bedel, quoted in Nouv. 
et faits, 1876, No. 23', p. xciv. See also Bull. Soc. Ent. Fr. (5) vi. 
p. xlix. as to crepitation by P.favieri. 
