INJURIOUS AND BENEFICIAL INSECTS. 547 
ggg segments; a pote are meraapcaes portions of the skin, giving rise to 
hai sto a single see prar four or five tenent 
airs at f the e joint. Lengt h about a seventh (715) o; nch. 
e popa is of the ae form in the group, but is white, a ie faint dorsal dark 
ddle thoracic segment, and two on the basal segment of the abdomen; 
farther behind is a pair vat large, converging, black spots beginning on the second 
abdominal segment, and ending on the fourth; while on each side of the fourth are 
th a few 
inch long) the upper side is densely covered with long, thick hairs, the body being 
naked beneath. The larger specimen Bites "12 inch in length. 
The Aphis-eating Mite.—Quite an unsuspected enemy of the 
aphis is a little garden-mite, which I found in July and August 
last in considerable numbers in Fig. 152. 
my garden, busily engaged in de- 
vouring the plant-lice on the rose- 
bushes. 
We know ‘but little of the 
other insects. The present species 
is allied to the red garden-mite 
(Trombidium), which is often seen 
running over flower beds. It is 
the six-legged young of these mites 
which, under the name of harvest- 
mites, are so irritating and annoy- 
ing when they get upon our bodies, 
as they work their way in under 
the skin. Their natural hosts are 
| various insects, such as grasshop- 
- pers, etc., as we often perceive 
3 them with their heads stuck in 
between the joints of the latter. They are all vermilion-red in 
color, and in former times have been used as a dye. 
Aphis-eating Mite. 
Our species is mate 4 a Trombidium, or closely allied genus, and perhaps the 
—- 
Specimen we figur Itm may be called Trombidium? bulbipes (fig. 152, 
a, leg; b, palpus, he ae llusion t llen, bulb-like terminal joints of the 
- Itis scarlet red, regularly ovate in form, with a distinct, squarish head se] te 
from the body, and two deep-red eye-spots — over the insertion of 
pair of legs. The beak is long, slender, sharply conical, and reaches to near the 
i he third joint of the palpi st “ner "to ur-jointed, the — and third 
ni A 
the 
eend of the third joint of ence wae et legs. ahr ae tet are 
