69 



GiRAULT (A. A.). The North American Species of Habrocytus (Chalcid- 

 flies. — Canadian Entomologist, London, Ont., xlix, no. 5, May 1917, 

 pp. 178-182. [Eeceived 12th December 1917.] 



This purely systematic paper deals with ten species of the genus 

 Habrocytus, of which H. medicaginis, Gah., is described from females 

 reared in connection with BrucJiophagus funebris in red clover seeds ; 

 H. arkansensis, Gir., from specimens reared in connection with 

 Isosoma ; and H. cereaJdlae, Ashm., a parasite of Sitotroga cerealelh. 



Ehrhorn (E. M.). Division of Plant Inspection. — Hawaiian Forester 

 d Agriculturist, Honolulu, xiv, no. 10, October 1917, pp. 283-285. 



During the month of September a package of seeds and spices from 

 Singapore was found to be infested with weevils and was fumigated 

 with carbon bisulphide, as was also a package of plants by mail, 

 owing to the presence of mealy bug [Pseudococcus]. Three boxes of 

 turnips were dumped at sea, being infested with radish maggot 

 [Chortophila brassicae]. 



FuLLAWAY (D. T.). Division of Entomology. — Hawaiian Forester & 

 Agriculturist^ Honolidu, xiv, no. 10, October 1917, pp. 285-286. 



During the month of September the insectary handled 20,700 

 pupae of the melon fly [Dacus cucurbitae], from which 968 individuals 

 of Opius fletcheri were bred and distributed. The following parasites 

 were also distributed : — Tetrastichus, 200 ; Diachasnm tryoni, 295 ; 

 Galesus, 175 ; Diachasnm fulhwayi, 90 ; Paranagrus (corn leaf-hopper 

 parasite), 1,200. 



Mason (C). Report of the Government Entomologist. — Nyasaland 

 Protectorate, Ann. Rept. Dept. Agric. for Year ended 31st March 

 1917, Zomba, pp. 9-13. [Received 15th December 1917.] 



The enormous annual financial loss from cotton bollworm damage 

 shows that uninterrupted scientific work is urgently needed, for 

 although a papng yield is generally obtained, yet bollworms take toll 

 of 75 per cent, of the crop, a fact that gives some idea of the potential 

 cotton-producing capacity of the Protectorate. 



Thespesia sp., the only known wild food-plant of the cotton flea- 

 beetle {Phyllotreta sp.), was found also to be affected by Farias insidana, 

 E. biplaga, Sylepta derogata, Dysdercus nigrqfasciatus, D. intermedius, 

 Oxycarenus sp., Syagrus tnorio and numerous leaf-eating larvae that 

 occur on cotton. Of other cotton pests the Longicorn, Tragiscoschema 

 wahlbergi, Fhs. (stem and shoot borer) was noticeably abundant on 

 certain experimental plots, though the insect does not appear to be 

 on the increase ; Phyllotreta sp. (black cotton flea-beetle) reduced the 

 area under cotton this season by some 3,000 acres ; the bollworms, 

 Farias and Heliothis, caused a loss of approximately £370,000 ; these 

 species principally attacked squares, flowers and young bolls, their 

 exceptional abundance being due to the destruction of parasites by 

 the severe cold of May and June, 1916, and to the great shortage of 



