263 



The best method of control is to bark the trees early on felling areas 

 and to remove newly dead trees in other parts of the forest. 



Diapis furtimis is most subject to the attack of natural enemies 

 in the adult stage. Among the most important of these are : the 

 Colydiids, Xuthia sicanu, Fa.sc., Microprius dijfficilis, Grouv., Asosylus 

 filiformis, Grouv., and Cerylon qundricolle, Sharp ; theCucujid, Hedar- 

 thrum hews Fhs. ; the Clerids, Thanasimus {Tillicera), assamensis, Steb., 

 and Stigmatium spp. ; the Curculionid, Phaenomerus smidewalli, Boh. ; 

 and the ant, Oecophyllu smaragdina, F. 



Hamilton (C. C). The Behaviour of some Soil Insects in Gradients of 

 Evaporating Power of Air, Carbon Dioxide and Ammonia. — Biol. 

 Bull. Mar. Biol. Lab., Woods Hole, Mass., xxxii, no. 3, March 

 1917, pp. 159-182. [Received 22nd April 1917.] 



The experiments described in this paper extended over many months 

 and were carried out on the larvae and adults of soil-inhabiting 

 msects, chiefly the Carabid, Euurthrus sodalis, to ascertain their 

 behaviour in altered conditions of air supply. The results show that 

 larvae are much more sensitive to dry air and increased temperature 

 than are the more resistant adults, but that they are less affected by 

 a high percentage of carbon dioxide. 



MoRLEY (C). On some South African Ichneumonidae in the Collection 

 of the South African Museum. Part I. — Annals. S. African 

 Museum, Cajie Town, xv, no. 5, 1st December 1916, pp. 353-400. 

 [Received 24th April 1917.] 



This paper deals with 87 species of Ichneumonidae belonging to 

 five subfamilies, 50 species being described as new. 



ViLLENEuvE (J.). A now Spccies of Tachino-Oestrid from South 

 Africa (Diptera).— ^/ma/s S. African Museum, Cape Town, xv, 

 no. 6, 8tb December 1916. pp. 465-468. [Received 24th April 

 1917.] 



Rondaniooestrus apivorus, gen. et sp. n., is described, a female of 

 ■which from Port Elizabeth is said to have been bred from a honey bee. 



ViLLENEUVE (J.). A Contribution to the Study of the South African 

 Higher Myodarii {Diptera Calyptratae) based mostly on the Mate- 

 rial in the South African Museum. —Annals S. African Museum, 

 Cape Town, xv, no. 6, 8th December 1916, pp. 469-515, 8 figs. 

 [Received 24th April 1917.] 



This paper contains descriptions of new or Uttle known species of 

 Tachinidae and Anthomyidae. Forty-three new species are dealt 

 with, belonging to 37 genera (of which 10 are newly erected) and two 

 new sub-genera. Stomatomyia metallica, sp. n., was bred from the 

 caterpillar of a Noctuid moth of the genus Athetis at Sahsbury, Southern 

 Rhodesia. 



