. Some insects injurious to garden and orchard crops : a series of articles dealing with insects of this class. es for the beetleswhen they occur in sufficient abundance to be troublesome. The useof insecticides on ripening fruit that is soon to be eaten is practicallyout of the question. During the heat of the day, particularly in thebright sunlight, the beetles are active, but in the shade when feedingthey can readily be captured by jarring tbem from, the trees or otherplants upon which they occur into bags or nets. A. simple screen ofmosquito netting applied over drying fruit will afford am
. Some insects injurious to garden and orchard crops : a series of articles dealing with insects of this class. es for the beetleswhen they occur in sufficient abundance to be troublesome. The useof insecticides on ripening fruit that is soon to be eaten is practicallyout of the question. During the heat of the day, particularly in thebright sunlight, the beetles are active, but in the shade when feedingthey can readily be captured by jarring tbem from, the trees or otherplants upon which they occur into bags or nets. A. simple screen ofmosquito netting applied over drying fruit will afford ample protectionagainst these insects and others liable to be attracted. Fortunately, the species is one of many that are only periodicallynumerous enough to be troublesome, and therefore it is not an insectthat need often be the cause of serious alarm. BIOLOGIC NOTES ON THE MAY BEETLE, LACHNOSTERNAARCUATA SM. It is a matter of common knowledge that until within the last decadethe common white grub of the Northern and Middle States was verygenerally believed to be the offspring of that species of May or June. Fig. 16.—Lachnosterna arcuata: a, beetle; b, pupa; c, egg; d, newly-hatched larva; e, maturelarva; /, anal segment of same from below, a, b, e, enlarged one-fourth; c, d,/, more en-larged (original). beetle known as Lachnosterna fusca Frohl. About ten years ago, how-ever, chiefly through the studies of Dr. J. B. Smith,1 it was ascertainedthat only the common Northern species of white grub belonged to , while that found most abundantly in the Middle States, andparticularly in and about the District of Columbia, was an unde-scribed species, to which was given the name arcuata, from the arcuateprocess on the penultimate segment of the abdomen of the male few years later a very careful and elaborate study of white grubs ofcertain species of Lachnosterna and of Cyclocephla immaculata wascarried on at Champaign, 111., by Dr. S. A. Forbes,2 official entomolo-gist
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