. Some insects injurious to garden and orchard crops : a series of articles dealing with insects of this class. and that, althougheach separate account is not signed by the author, each should prop-erly be indexed separately, as each article is in itself complete, havingno special bearing on either what precedes or follows it in the order ofpublication. The illustrations were for the most part prepared from selectedfresh material and, with a single exception, especially drawn or other-wise adapted for this work. F. H. C. SOME INSECTS INJURIOUS TO GARDEN AND ORCHARD CROPS. THE SQUASH LADYBIRD;
. Some insects injurious to garden and orchard crops : a series of articles dealing with insects of this class. and that, althougheach separate account is not signed by the author, each should prop-erly be indexed separately, as each article is in itself complete, havingno special bearing on either what precedes or follows it in the order ofpublication. The illustrations were for the most part prepared from selectedfresh material and, with a single exception, especially drawn or other-wise adapted for this work. F. H. C. SOME INSECTS INJURIOUS TO GARDEN AND ORCHARD CROPS. THE SQUASH LADYBIRD; ITS LITERATURE AND BIOLOGY. In the course of the investigations of the insect enemies of cucurbitcrops, the squash ladybird (Epilachna borealis Fab.) has come underobservation on numerous occasions. All of the different stages of thespecies have been described more or less fully by different writers;some few slight details in the life economy of the insect remained to bemore fully studied, however, and in looking through the early litera-ture of the species so much has been found of interest that has obvi-. FlG. 1. -Epilachna borealis: a, larva ; b, pupa ; c, adult beetle ; d, egg ; e, surface ofthree times natural size; d, four times; e, highly magnified (original). , 6, c, ously escaped the attention of some of the later writers, that mentionis here made of it. Illustrations of the insect in its various stages andof its work are also presented, together with brief mention of its chiefcharacteristics, its habits, and its distribution. As the bibliographyhas not hitherto been brought together, a list of the principal eco-nomic writings has been compiled and is appended. GENERAL APPEARANCE AND DISTRIBUTION. For the benefit of those who are not perfectly familiar with this insectand to facilitate its recognition with the aid of the illustrations, a briefdescription of its several stages is given as a preliminary. The beetle is of the characteristic hemispherical form of ladybirds
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashingtondcusdept
