392 Insecta. 



demic spp., apparently witb no close relatives elsewhere (Sphecodes scotti sp. n. and 

 Halictus mahensis Cam.); (II) endemic spp. or. subspp., but very closely-allied to forma 

 found elsewhere (with Holarctic affinities, Ceratina 2 spp. n.; with African affinities, 

 Mesotriclda subsp. n.; with Indo-Pacific affinities, Lithurgus scotti sp. n.); (III) wide- 

 spread spp., perbaps in some cases introduced by man. The Aldabra bee-fauna is simi- 

 larly divided into: (I) endemic spp., very distinct {Halictus aldahranus sp. n., Ceratina 

 fryeri sp. n.); (II) endemic spp. with close relatives elsewhere (2 spp. of Holarctic affi- 

 nities, and 1 subsp. of a Seychelles sp); (III) a Madagascar sp. The great Contrast 

 between the bec-fauna of Aldabra and that of the Comoros is remarked. In the Indian 

 Ocean, as in the Pacific, many of the insular bees are such as nest in wood ; their nests 

 may be carried across the sea in floating trees. The Seychelles might thus receive spe- 

 cies from the Malay region and from Africa: but there is no ocean-current from India 

 to them, and their fauiia contains no truly Indian element. In the systematic portion 

 15 spp. are enumerated, including descriptions of 11 new spp. and subspp. 



H. Scott (Cambridge). 



1217) Forel, A., Fourmis des Seychelles et des Aldabfas. In: Trans. Linn. See. 

 London, (Ser.'-J, Zool.), Bd. XV, Heft 2, S. 159 — 167, 1912. 



This report on the ants collected in the Seychelles, and in Aldabra and the neigh- 

 bouring Islands, by the Percy Sladen Trust Exp. of 1908—1909, enumerates 36 spp., of 

 which a num'ber are additions to the fauna of those Islands, while several are also new 

 to science. H. Scott (Cambridge). 



1218) Crawley, W. C, Anergates atratulus Schenk., a British Ant, and the ac- 

 ceptance of a ? by Tetramortum caespitum L. In: Ent. Record and Journ. 

 Variation, Bd. XXIV, Heft 9, S. 218—219, 1912. 



The writer describes the finding of a colony consisting of an obese queen, a number 

 of winged S, 3 /, and larvae and pupae of A. atratulus in a nest of T. caespitum in the 

 New Forest (Hampshire), and its establishment with a colony of T. caespitum in a Janet 

 'Nest. In this experimental nest, the ? Anergates removed their wings soon after copu- 

 lation and made no attempt to leave the nest. Each dealated Anergates ^ seized a 

 Tetrnmoriuin ö by the antenna and retained hold for hours or even days: the reason 

 for this action is uncertain: the object may be to acqnire the Tretramorium odour, and 

 the writer also suggests other reasons. A newly fertili^ed Anergates $ was completely 

 adopted by a large colony of 1\ caespitum: the latter killed all their own (^ and 2 (in- 

 cluding 2 dealated $) two days after accepting the Anergates. The British Anergates J, 

 possessed no strigil, and therefore correspoud to the form found in Holland rather than 

 to the more Southern form: the British $ was determined by Forel as typical A. atra- 

 tulus. H. Scott (Cambridge). 



1219) Morley, C, Hymenoptera, Ichneumonidae [of the Seychelles etc.]. In: 

 Trans. Linn. Soc. London, (Ser. 2, Zool.), Bd. XV, Heft 2, S. 169—179, 1912. 



18 spp. are enumerated as having been collected by the Percy Sladen Trust. Exp. 

 1 sp., widely distributed in the East, was found in the Chagos Islands: and 1 sp., found 

 in Africa and Madagascar, was obtained in Assumption Island. The remaining 16 spp. 

 were all found in the Seychelles: 9 of these are new to science; the remaining 7 are 

 more or less widely distributed, some being African, others Oriental spp., while two are 

 known from Palaearctic regions. H. Scott (Cambridge). 



1220) Schulze, P., Interessante Beobachtung an JlJiyssa. In: Berl. entom. 

 Zeitschr., Bd. 57, Heft 1/2, S. 42—43, 1912. 



Bei Berlin findet sich recht häufig eine BIiyssa-Art als Parasit von Xyphi- 

 dria camdus L. Die cTcT sind sehr selten. Verf. beobachtete nun, wie auf einem 

 Baumstamme, der XypJiidria -Larven enthielt, ein dichter Knäuel von Insekten 

 sich hin- und herstieß; sie erwiesen sich als etwa 12 Eliyssa-(^d, die sich um ein 

 Schlupfloch drängten. Entweder war hier ein $ der Art geschlüpft und der Ge- 

 ruch haftete der Stelle noch an oder aber, was wahrscheinlicher ist, das Schlupf- 

 loch stand iu Verbindung mit einem Gang, der eine weibliche i?//?/S6a-Puppe ent- 

 hielt. Einen ähnlichen Fall teilt Wagner (Z. f. w. Insektenbiol. 4, S. 245) mit. Auf 

 einem Gespinst von Malacosoma nenstrmm L. saß eine Anzahl c?cf von Pimpla 

 inquisitor Leop., die versuchten in das Gespinst einzudringen. Auch beim Trans- 



