1Fnp,, 1900.] QUEENSLAND AGRICULTURAL JOURNAL. 147 
Miter), and the whole wash be kept well stirred whilst being applied. In the 
Ter case it may be mixed with flour, or plaster of Paris, 1 lb. of Paris Green 
Mg mixed with 40 to 50 lb. of the former, or 100 lb. of the latter. These 
Bes if used dry, should be dusted over the plants, having been first placed 
(t « bag, made of some pervious material that is to be fastened to a pole, 
ae such bags, one at each end of a pole, may be placed across a horse 8 back, 
will the animal led over the ground it is proposed to poison, when the jerking 
Ml liberate the poisonous dust). If applied in the form of a wash, the 
Mixture may be distributed by means of a watering cart, or Strawsonizer, or 
*' similar apparatus. When the strip of poisoned fodder has served its 
“fi Dose, it should be mowed down and burnt, to prevent its being consumed 
‘t ue prior to its heing rendered innocuous by exposure to successive showers 
6. The fact that the insect hibernates as a caterpillar, and frequently may 
dé m the egg condition in dry grass and stubble, and, moreover, habitually 
quents rank herbage, suggests the expediency not only of maintaining the 
fadlands of fields clean and free from weeds, but also of periodically firing 
cman This should be done even when visitations of caterpillars are not 
Pm ediately impending, as the insect always exists in these situations in greater 
Ma €88 number, and. will, under favouring climatic conditions, the existenceof a 
Neity in the numbers in which its natural enemies occur, or the lessened 
“tiveness of natural checks, generally multiply to a highly prejudicial extent. 
ati Under certain special circumstances the moth may be captured. by trap- 
ry ™s, or killed by attractive poisoned sweets. The conditions under which 
be PS are grown in Queensland are, however, such that their use 1s not likely to 
attended with any marked result. . 
nillae: The fact of domestic poultry being very partial to insects, and cater- 
“the eee might be utilised in repressing these in ordinary seasons ; 
theip culty that is experienced in getting certain varieties to roam far from 
acetaee being overcome by the use of transportable fowl-houses, as recom- 
ded in the writer’s Report on the Grub Pest of Sugar-cane: these houses 
ee Pee over the standing crop when this is but little grown and the 
iM lars are still young. R sah) : 
0 stg Farmers interested in caterpillar repression should make it their business 
fa. WtOoUusly oppose the destruction of all insectivorous birds and their eggs ; 
Pecial allusion being made to such birds as are hereafter mentioned. 
€Xigt 
‘DESCRIPTION OF PLATES. 
Plate CLXXTII. 
Wyjtead of Stool of Wheat, as injured by Leucania Caterpillars. From photograph by C. J. 
Plate CLXXITI. 
“1. Leuewnia unipuncta. Moth, Natural size. 1a, portion of antenna of male; 16, portion 
EN of antenna of female. (Magnified representations. ) 
«. Leucania unipuncta Moth. Position of rest. 
. Chrysalis. ; 
Caterpillar, Dorsal and lateral views. 
(From Drawings by C. J. Wills.) 
Plate CLXXIV. 
+ Predaceons Beetle—Calosoma australis, Hope. 
Red Ichnenmon—Theronia rufipes, n. sp. Female. 
Banded Ichnenmon—-Hxephanes leucaniv, n. sp. Male, 
: iy awny Ichneumon—Paniseus (productus, Brullé ?). Female. 
Social Ichneumon—Apanteles rufierus, Haliday (enlarged representation), 5 a, Natural 
,, 21Z@ 3 5b, Pupa cocoons, 3 ‘ 
Cachina Fly-parasite—Linnemyia nigripalpus, n. sp. 6a and 6b, Face (magnified 
representation); 6c, Wing (enlarged representation) ; 6d, Larva (white in nature) ; 
6 e, Cocoon froin which fly has emerged.. - 
(From Drawings by C, J. Wills.) 
lie 
