Insecta. 33 



und traubenförraig angeordnete Brutzellen. Das Nest von Melipona santhüuri Lep., 

 1,25 m tief aus dem Boden ausgegraben, wird beschrieben. — Trigona hipunc- 

 tafa Lep. In dem Bau waren sieben einzelne Nester übereinander, jedes mit einer 

 besonderen Königin. Vorratstöpfe verscbiedengestaltig. Die Brutmasse bestand 

 aus 17 spiralig geordneten Waben, oder aus horizontal angeordneten. Größe der 

 Brutzellen 6x4, der Weiselzellen 9x6,5 mm. Zahlreiche Flugröhren sind vor- 

 handen und nach verschiedener Himmelsgegend gerichtet; sie sind aus harter, 

 brüchiger, harziger Masse gebaut 15 — 30 mm weit bei 1 — 1,3 mm dicker Wan- 

 düng. Männchen waren vorhanden, die Bienen beißen nicht, der Honig ist gut. — 

 Trigona frisei Ih. Die Balken zwischen den Bruttöpfen sind aus Pferdemist ge- 

 baut. Verfasser gibt eine genaue Beschreibung der Waben und Zellen. — Tri- 

 gona capitata Sm. Die Vorratstöpfe sind sehr groß, wie bei Melipona. Die jungen 

 Königinnen entwickeln sich in Arbeiterzellen. Beschreibung der Königin. 



Eckstein (Eberswalde). 



92) Turner, R. E., On new species of Fossorial Hymenoptera from Africa, 

 mostly Elidinae. In: Trans. Ent. Soc. London, Heft 4, S. 720—754, 1912. 



98) Cameroii, A. E., A note on two species of ßassid Ichneumonidae para- 

 sitic on a species of Syrphid larva. In: Entomologist, Bd. 4(;, Heft 4, S. 130 — 131, 

 1918. 



Homocidus dimidiatus Sehr, and H. tarsatorius Panz. are recorded as parasites of 

 Platycheirus albinianus Fabr. H. Scott (Cambridge). 



94) Morley, C, On Walker's .Japanese Ichneumonidae. In: Entomologist, Bd 46, 

 Heft 4, S. 131 — 5, 1913. 



The writer throws some light on the true systematic position of a number of pa- 

 rasitic Hymenoptera the original descriptions of which are quite inadequate. 



H. Scott (Cambridge). 



95) Donistliorpe, H. St. J. K., Some notes on the Genus MyrmicaLsitr. 

 In: Ent. ßec. and Journ. Variation, Bd. 25, Heft 1, S. 1—8; Heft 2, S. 43—51, 

 1913. 



This paper contains a general introductory portion, after which the British 

 spp. of Miirmica are dealt with in systematic Order. In the general part, cases 

 are mentioned of Variation in the neuration of the forewing, a character which 

 is sometimes highly variable in ants. Stridulation is in this genus caused by 

 rubbing the post-petiole against the first gastric segment. The writer has found 

 the winged forms from June to October, but the marriage-flight usually oceurs 

 in September, the cT and 5 falling to the ground together immediately after 

 pairiug in the air. The $$ are able to found their colonies alone: several $$ may 

 be present in a single nest, this being caused by ??, which have been fertilised 

 near by, re-entering their parental colony. It is an interesting fact that the habits 

 of some species appear to be different in Britain from what they are in Switzer- 

 land: e. g., Forel has stated that M. seatjrinodis nearly always occui-s in arid lo- 

 calities, whereas in Britain it sometimes oceurs in very wet places. Under each 

 of the British species is given a summary of its distribution within the British 

 Isles as far as known, as well as the general distribution and a füll list of the 

 myrmecophilous insects and Acari that have been found with it. On pp. 48 — 51 

 is given a list by F. V. Theobald of Aphides found with the British species of 

 Myrmica. H. Scott (Cambridge). 



Hierzu: Nr. 29— 36, 107, 109. 



Zoutialblatt f. Zoologie, allgeiu. u. experim. Biologie. HA. 3. 3 



