33 



of all windfalls and infested fruit, has been receiving a good deal of 

 attention in New South Wales and is discussed in this paper. The 

 breeding of the parasite Opius tryoni does not promise any measure 

 of success, for while it freely attacks fruit-fly maggots on wild fruits, 

 it is unable to reach those in the soft tissue of the succulent cultivated 

 fruits. The various devices for destroying fruit-flies by poison-baits 

 or sprays are reviewed. The results of tests with these indicate 

 that fruit-flies can midoubtedly be trapped and poisoned with arsenical 

 preparations. Many observers are of the opinion that no special form 

 of trap is required, but that any shallow, clean, bright tin, if properly 

 baited, will catch the flies. While traps and sprays are good addi- 

 tional precautions in badly-infested orchards, none of the existing 

 regulations should be relaxed regarding the regular destruction of all 

 fallen and infested fruit. The question arises whether it is more 

 economical to collect and destroy infested fruit or to re-bait hundreds 

 of traps every week and spray the trees after every rainstorm for 

 six months of the year. 



FuLLAWAY (D.). Division of Entomology. — Hawaiian Forester <Ss 

 Agriculturist, Honolulu, xv, nos. 9-10, September- October 1918, 

 pp. 381-382, & 408-409. 



During July and August the insectary handled 47,400 pupae of the 

 melon fly [Dacus cucurbitae] from which were bred 7,798 individuals 

 of Opius fletcheri. The parasites distributed were : — Opius humilis, 

 395; 0. fletcheri, 7,280 ; Diachasma tryoni, 1,87b ; Spalangiu cameroni, 

 4,250 ; Tetrastichus giffardianus, 300 ; Galesus silvestrii, 300 ; Pachy- 

 crepoideus dubius, 900 ; and Paranagrus osborni, 56,800. 



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

 & Agriculturist, Honolulu, xv, nos. 9-10, September-October 

 1918, pp. 383-384 & 409-411. 



During July a case of orchids from Manila was fumigated with 

 hydrocyanic acid gas owing to the presence of ants in the packing. 

 Cases of banana sprouts and of yams from Manila were found infested 

 with termites. The entire shipment was destroyed by burning, as 

 this termite will probably prove to be the same species as that which 

 is at present seriously damaging the docks and buildings throughout 

 the city. 



During August cases of Bartlett pears from the mainland were 

 found infested with codling moth [Cydia ponwnella], Otaheite orange 

 trees from Pennsylvania with scale-insects, and pineapple plants 

 from Florida with Stigmaea floridanus (Florida pineapple mite). 



Malloch (J. R.). The North American Species of the Genus Tiphia 

 (Hymenoptera, Aculeata) in the Collection of the Illinois State 

 Natural History Survey. — Illinois State Nat. Hist. Survey, Urbana, 

 Bull, xiii, no. 1, September 1918, 24 pp., 1 plate. 



A revision of the genus Tiphia was found necessary as a result of 

 a study of those species that are parasitic upon Lachnosterna {Phyllo- 

 phaga) (white grubs). A key is given to the species contained in it, 

 with descriptions of several new ones. 



(C529) c 



