516 
Observations on the various Insects 
Ephedrus plagiator deposits her ejgs in a similar way in the 
apterous Aphides, which assume a black colour. 
Very few male Aphides to be found, and the punctured ones are 
s\\ females. 
Cerapliron Carpenteri destroys the parasitic Ephedrus, by de- 
positing its eggs in the maggots, which are already living in the 
A])ltides. 
A little apterous Bug, of a scarlet colour, abundant on corn. It 
is carnivorous, and possibly lives upon the Aphides. 
Hungry picMes supposed to be caused by this or some other in- 
sect by Somerville. 
A fungus, called Uredo frumenti, makes its appearance at the 
same time. 
Such mischief arises from shallow soicing, according to Somer- 
ville. 
A saw-fly, named Selandria humeralis, an Entedon, and Dacriusa 
cerealis, flying about a wheat-field in August ; the last in abun- 
dance. 
Miris Tritici, a bug, abundant on the wheat with the Aphides, 
in the larva, pupa, and perfect states. Does it live upon the plant- 
lice ? 
It also abounds on gras.'ses in marshes on the sea-coast. 
Miris dolabratus equally common upon barley and the borders 
of the fields, in every stage, where it is in all probability serviceable 
in destroying noxious insects. 
It is exceedingly numerous in hay-fields around London from 
Midsummer to Michaelmas. 
A little fly called Oscinis granarius appears to live in the grain 
of loheat in the larva state. 
One bred from a. pripa issuing from a kernel of a rosy colour. 
A Millipede called Polydesmiis complanatus in abundance about 
grains of wheat which had vegetated and died. 
Were they the cause or effect of the disease ? 
The worm named Vibrio Tritici, infesting the grains of wheat 
in the ear, which are then called Ear-cockles or Purples. 
Eggs absorbed from the soil with the sap. 
^he female worm dies after laying her eggs. 
When dried and dead, moisture reanimates the worms, and their 
vitality has not been extinguished for upwards of years. 
The glutinous substance in which they are enveloped probably 
secures their vital powers from destruction. 
The cottony substance which at first fills the grains is composed 
of hundreds of these worms, which become active in a quarter of an 
hour on being moistened. 
The grains finally become hard and dark. 
