ernie 40 
INSECTS INJURIOUS TO CEREALS, ; 
Wheat Midge (Diplosis tritici, Kirby). Larve live within flowering glumey 
and cause abortion of grain. In soil or other vehicle containing pupe. From 
Europe and the United States of America (formerly introduced to this region), 
Hessian Fly (Cecidomyia destructor). In straw and hay packing, and in 
grain badly cleaned and containing the pupe (the so-called ‘flax seeds”). From 
Europe, the United States, and New Zealand, being introduced within recent 
years to the this southermost Australian colony.* 
European Saw Fly (Cephus pygmeus, Linn.) From Europe or America ; 
introduced to latter country. Importation to Queensland not highly probable, 
Wheat Stem Maggot (Mleromyza, sp.) Breeds freely in several kinds of 
grasses besides doing so in wheat stalks. In straw and grass in packages, 
From the United States of America and Canada (vid. “ Report, Canadian 
Entomologist, 1889’). 
Joint Worm (Jsoma tritici). This hymenopterous insect is stated to doa 
considerable amount of injury in wheat-growing districts. In straw used ag 
packing, since insect hibernates within the stalks. ‘rom the United States of 
America and elsewhere. 
Gran Aphis (Zoxoptera graminum, Boisd.). Attacks oats and other 
cereals. Introduced formerly into America from Europe, and therefore a 
possible importation to Australia. From European countries, including 
Mediterranean provinces. ; 
INSECTS INJURING MAIZE. 
Sugar-cane Moth-borer (Diatrea saccharalis, Fabr., vide “ Sugar-cane’’), 
In cane “sets.” 
Sugar-cane Beetle (Ligyrus rugiceps, Lee.). Stated to be “the worst 
insect enemy of the corn plant on heavy wet land” in Missouri, U.S.A. (vide 
“Tnsect Life,” I. 217). In cane “sets.” Vide “ Sugar-cane.”’ 
Corn Root-borers (Diabrotica longicornis, Say., and D.12-punctata, Oliv.). 
The former insect, the grub of a beetle, has been stated to have “ become a ter-_ 
rible pest in fields of Indian corn all over the Western States of America”? 
(i. M. Webster). In soil containing the roots of growing plants. From North 
_America. Introduction not highly probable. , 
INSECTS INUJRING SUGAR-CANE. 
Moth Stalk-borer (Diatrea saccharalis, Fabr.).+ This destructive borer 
does not appear to have become established in Queensland. Attacks also maize 
and sorghum. In sets of sugar-cane from East Indies, India, Mauritius, and 
Louisiana. 
Javanese Stalk-borers{ (Scirpophaga intacta, Snell, Giapholitha 
schiztaceana, Snell., and Ohilo infuscatellus, Suell.) 
Beetle-borers (Sphenophorus obscurus, Boisd., and Sphenophorus sacchari, 
Guilding). Highly destructive insects (vide “Insect Life,” i. p. 185). Also 
damaging banana. In sugar-cane or cane “sets” and in banana stools. From 
the Sandwich Islands, New Ireland, New Guinea, ‘Tahiti, West Indian Islands, 
~and South America. ; 
American Sugar-cane Beetle (Zigyrus rugiceps, Lec.). In sugar-cane or 
cane ees From Louisiana (vide “ Report Div. Ent. Rep. Dep. Ag. U.S.A. 
‘ ; INSECTS INJURING BANANA. 
__ Beetle Borers (Sphenophorus spp.). Vide “ Sugar-cane.” Cane plants 
: ang “sets” and banana stools. From British New Guinea, Sandwich Islands, 
Cc. 
* Of, T, W. Kirk.—‘‘ Report of Acting Biologist,” ‘2nd Report Department of Agriculture 
New Zealand,” pp. 81-87, Wellington, 1894; and H. Tryon, “Journal of the National and 
Agricultural Association,” No. 24, Brisbane, 26th May, 1888. 
+ That _the stalk-borers belonging to the genus Diatraa, occurring in South America, 
‘Mauritius, India, and the East Indies, are referable to a single species is at least doubtful. 
~ Dr. W. Kruger. Berichte der Versuchsstation fiir Zuckerrohr in West Java. Heft I., 
__ Dresden, 1890. . : 
