140 
. THE DICTIONARY OF GARDENING, 
Pinus—continued. 
Fic. 171. CONE OF PINUS BUNGEANA. 
some do considerable injury. But, on the whole, the 
moths seldom do serious harm to Conifers in garders or 
Pinus—continued. 
Pines and other Conifere are very liable to the attacks 
of numerous forms of Aphides, some of which feed on 
the needles, and others on the branches or in the young 
buds. The latter, for the most part, belong to the 
genera Chermes and Lachnus, both of which usually 
have a coating of filaments like a small tuft of white 
cotton, secreted by, and protecting, the body; and they 
are, therefore, rather easily detected on the bark. The 
two genera are easily distinguished from one another, 
since Lachnus has short, stumpy honey-tubes on its 
back near the end of the body, and one of the veins 
of the front wing that run to the hind margin has two 
branches; while in Chermes, the honey-tubes are not 
present, and the veins of the front wings are all un- 
branched. The number of species is too great to permit 
of a description being here given of each one that is 
injurious to Conifere; but one producing a gall resem- 
bling a miniature Pine-apple, is referred to under a 
16. 172. PINUS CEMBRA. 
pleasure - grounds, though they frequently do much 
damage in forests. The Sawflies are more to be 
dreaded than the moths. : 
separate heading (see Spruce Pine-apple Gall). 
Several kinds of Psylla also feed on Conifere. 
none of the Conifers would the result be worth the 
