. Injurious insects of the orchard, vineyard, field, garden, conservatory, household, storehouse, domestic animals, etc., with remedies for their extermination . ) highly magnified—color, —Use No. 5 or 7 ; No. 3 or 4 Avill give good resultsif No. 5 or 7 cannot be had. NSFXTS INFHSTIXG THE lbi^:ri Til e Kilhert Scale (Lecanmin heiniKpharicumt Chap 151 CHAPTER CLI. The Filbert Scale. ^Cal.) (Lecanium henuHphiericum.—Targioni.) Order, Hemipteea ; ) r^ ^^ ^, Sub-order, Homoptera; j family, [A dark-brown hemispherical scale insect, or bark-louse, feeding upon the tilbert an
. Injurious insects of the orchard, vineyard, field, garden, conservatory, household, storehouse, domestic animals, etc., with remedies for their extermination . ) highly magnified—color, —Use No. 5 or 7 ; No. 3 or 4 Avill give good resultsif No. 5 or 7 cannot be had. NSFXTS INFHSTIXG THE lbi^:ri Til e Kilhert Scale (Lecanmin heiniKpharicumt Chap 151 CHAPTER CLI. The Filbert Scale. ^Cal.) (Lecanium henuHphiericum.—Targioni.) Order, Hemipteea ; ) r^ ^^ ^, Sub-order, Homoptera; j family, [A dark-brown hemispherical scale insect, or bark-louse, feeding upon the tilbert andorange trees, and on theoleander and other orna-mental trees.] I take the liberty of desig-nating this species as theFilbert Scale so as todistinguish it from the softorange scale {L. hespcri-chim) on account of thesimiliarity of their techni-cal names. Fig. 226.—Filbert Scale ;•??, leaves infested by thisscale ; 3a, the adult female,enlarged—color, brown. The filbert scale (, Ja,) when full grown isof a dark brown color,hemispherical in form, andmeasuring one and three-quarters lines in length;width, one and a half lines ; Fig. MoanxM 238 INSECTS INFESTING THE FILBERT. height, varying, but about one line. The size of the branchon which the insect locates sometimes alters or changes itsform; if the branch is small, the flattened edge of the insectwill spread doAvnward, clasping the branch or twig, thus giv-ing the insect an elongated and narrowed appearance, differentfrom those located on a fiat surface or leaf. NATURAL HISTORY. Eggs—length, one eighty fifth of an inch; width, one halfof the length ; color, pinkish. From seventy to one hundredare laid by each female. Larva—color, reddish; length, oneseventy fifth of an inch; antennae, seven jointed; anal setaepresent. The females of this species (Fig. 226, 3a—enlarged), likeother Lecaniums, have the power of locomotion until theybecome fixed to the plant. When young they are of a reddishcolor, ch
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