4 
THE BEAN MAGGOT. 
NOTES ON GRACILLAEIA 
BY 
A. Jefferis Turner, M.D,, Lond. 
(Eead on 5th May, 1892). 
— The substance of this memoir {vide “ Queenslander,'’ 
14th May, 1892) amplified with descriptions of several new 
species, was communicated subsequently to the Royal Society of 
South Australia {vide “ Traris. Roy, 8oc, of South Australia^' voL 
xviii, pp. 120-138, 1894.— En.] 
THE BEAN MAGGOT. 
BY 
Henry Tryon, 
(Read on 5th May, 1892). 
The living insects before you are small, black, two- winged 
flies which are provisionally named Oscinis phaseoli. My 
attention was first directed to this insect from having reared it 
some four years since from bean plants, the victims of a diseased 
condition, received from Bulimba. Since then evidence has come 
to hand that it is especially injurious to leguminous vegetables not 
only about Brisbane, but also in the Sherwood, Tingalpa, and 
other fostncts ; in fact it bids fair to minimise the yield of such 
desirable plants as the French heans, and possibly also of the 
horse ^ams. As a typical instance of its depredations a case 
reported by Mr. J. W. A. Campbell, a gardener to Sir S. w! 
riffith, may be cited. This observer states that the Ne^ro 
beans, the Belle Don or butter beans, the Governor Denison 
this pest at New Farm during the last four years, and recently 
^HnCrfr'^'h ^b ’ successive crops— from Decem- 
ber onwaids-have been completely destroyed by it. 
