PHALANGIIDEA, ACARIDEA. 
Arachn. 25 
Bru II 6, Oligolophus alpinus , Herbst, Acantholophus spinosus , Bose., 7ior- 
ridus , Pauz., Neman toma argenteo-lunulatum , Sim., 2 y rogulus aquations , 
Sim. The new species are in the genera Phalangium , Dasylobus , and 
Acantholophus. 
Sironoidai, Sim., = Cyphophthalmidai , Joseph ; Cyphophthalmus, J oseph, 
= &iVo, Latr. : T. Thorell, in a note to p. 23, Ann. Mus. Genov, xviii 
This genus is included by Thorell, Z. c., in subordo Anepignathi of the 
order Opiliones ( Phalangiidea ). 
Leptosalis, g. n., p. 23. Closely allied to Stylocellus , Westw., and /Siro, 
Latr. ; for L. beccarii , p. 25, figs. 1-9, Sumatra, and A. javana, p. 30, 
figs. 10 & 11, Java, spp. nn. ; T. Thorell, l. c. 
Siro cyphopselaphus, sp. n. (£only), G. Joseph, B. E. Z. xxvi., p. 20,' 
Grotto of God- jama, near Ober-Skril. 
Phalangium longicorne , sp. n., E. Simon, Bull. Ent. Ital. xiv. p. 39, 
Cima del Vulture, Piano e Varco dell Pollino. P. pusillum , p. 668, and 
P. abatrusum, p. 669, spp. nn., L. Koch, Verh. z.-b. Wien, xxxi., Balearic 
Isles. 
Dasylobus cavannai , p. 40, Vulture, Piano e Varco dell Pollino, and D. 
fulvaster , p. 42, Cima del Catria, spp. nn., E. Simon, l. c. 
Acantholophus lemniscatus, sp. n., id. 1. c. p. 46, Vulture. 
F. Karscii notes one species of Opiliones (foss.), from Saxony, found 
in the coal formation ; Z. geol. Ges. 1882, p. 556. 
ACARIDEA. 
Berlese, A. II polimorphismo e la partenogenesi di alcuni Acari. Bull. 
Ent. Ital. xiv. pp. 88-140, and pi. 
In continuation of the author’s paper, op. cit. xiii. pp. 290-292 \cf. 
Zool. Rec. xviii. Arachn. p. 29]. Gamasus is stated to produce hexapod 
larva. The nymphs only develope ova when in the adult state. From 
a special larva of G. tardus, a larger octopod nymph, without sex, is pro- 
duced ; during its growth it casts its skin, but docs not assumo a diffe- 
rent form ; a slight difference is observable at a later moult between 
males and females, but there are no traces of any secondary sexual 
characters. The changes of G. tardus , coleoptratorum , and stabularis , and 
Trachynotus inermis are detailed. For a translation of part and sum- 
mary of the remainder of this paper, see Arch. Ital. Biol. ii. pp. 108-130. 
. Indagini sulle metamorphosi di alcuni acari Insetticoli. Atti 1st. 
Venet. (5) viii. pp. 45 (sep. copy). 
Acarids of the genus Ilypopus are (as proved by Megniu) hetero- 
morphous nymphs of other Sarcoptidce, which is also the case with 
Homopus , Trichodactylus , and others. Adult Acarids are not, as a rule, 
migratory ; migration appears to depend on desiccation and starvation, 
and insects are principal agents in dispersing Acarids. A new genus 
and species of Gamasidcc are characterized ; also a new species of Sarco- 
ptidee ( Tyroglyphus ). Various instances of heteromorphism are given. 
For a translation of this paper, see Arch. Ital. Biol. i. pp. 279-281. 
