HYDE0PHILIDJ5 STAPHYLINIDJC. 
Ins. 23 
Hydrophilid^. 
HydropMlus piceus. A purely histological paper on the contraction of 
the striated muscles of the legs and head of this beetle, resulting (accord- 
ing to the author) in nothing sufficient for the foundation of a hypo- 
thesis ; L. Fredericq, Bull. Ac. Bclg. (2) xli. [1876], pp. 583-594, pis. i. 
& ii. See also preliminary observations by E. van Beneden, tom. cit. 
pp. 452-457. Observations on polymorphism in the $ , and on the 
differences between this species and 11. aterrhnus, Esch., in the descrip- 
tions by Sturm and Redtenbacher ; L. Camerano, Atti Acc. Tor. xii. 
pp. 730-738, pi. xi. 
Philhydrus melanocephalus, Er., nec 01., = 4:-punctatus, Hbst. ; P. af7'i- 
capillus, Steph., = bicolor^ Cryll- (nec F., nec Payk.), r= (Enochrus) 
melanocephalus, 01. ; L. Bedel, Bull. Soc. Ent. Fr. (5) vii. p. clxxvii. P. 
suturalis, Sharp, = coarctatuSy Gredl. ; L. v. Heyden, Nouv. et faits, 
1877, p. cxxvii. 
Philhydrus subsignatus, sp. n., E. v. Harold, Deutsche E. Z. 1877, 
p. 342, J apan. 
HELOPHORIDiE, 
Hydrochus obtusicollis, sp. n., L. Fairmaire, Pet. Nouv. ii. p. 141, 
Morocco. 
SrHASRIDIIDiE. 
Cyclonotum pictum, sp. n., T. Kirsch, Deutsche E. Z. 1877, p. 159, 
Auckland Isles. 
Paussid;e. 
Paussus should be written Pausus ; E. v. Harold, MT. Miinch. ent. 
Yer. i. p. 116. 
Arthropterus huehli, sp. n., J. P. E. F. Stein, MT. Mimch. ent. Yer. i. 
p. 28, in amber, Ostseestrande. 
Staphylinid.®. 
A. Fauvel, Ann. Mus. Genov, x. pp. 168-298, describes the Staphy- 
linidcB of Australia and Polynesia. Amongst other European species, 
Trogophlceus exiguus is recorded from Queensland, p. 195. A summary, 
contributed to the 1877 “Reunion des Soci^tes savantes des d<iparte- 
ments,” is abstracted in Pet. Nouv. ii. p. 125. 
List of species taken by 0. van Yolxem in Portugal, Spain, Morocco, 
and Lapland ; A. Fauvel, OR. Ent. Belg. xx. pp. xii.-xiv. In Brazil and 
La Plata ; id. 1. c. pp. xxiv.-xxviii. 
Mulsant, E., & Rey, C. Histoire naturelle des Coleopteres de France. 
Br^vipennes. “ Staphyliniens ” and “ Xantholiniens.” Paris : 1877, 
2 vols., 8vo [see Zool. Rec. xiii. Ins. pp, 30 & 36]. 
