. Annals of applied biology. Biology, Economic; Biochemistry. 208 Notes on the Straivhern/ Leaf Beetle began the day following their arrival and this took place underground without the formation of a cocoon. Date of pupation: June 21st-24th. Adults hatched: July 22nd to 26th. The beetles, on hatching, were in a fairly active condition but it took them from three to six days to harden. At the least sound or noise the beetles feigned death and dropped to the ground where they soon burrowed and disappeared out of sight. They were hardly ever observed to feed in the daytime. They fed mostly during
. Annals of applied biology. Biology, Economic; Biochemistry. 208 Notes on the Straivhern/ Leaf Beetle began the day following their arrival and this took place underground without the formation of a cocoon. Date of pupation: June 21st-24th. Adults hatched: July 22nd to 26th. The beetles, on hatching, were in a fairly active condition but it took them from three to six days to harden. At the least sound or noise the beetles feigned death and dropped to the ground where they soon burrowed and disappeared out of sight. They were hardly ever observed to feed in the daytime. They fed mostly during the nights and early mornings, when quite a few did not seem to be disturbed, either by noise or even by handling their pot-plant. This is not the first time that the species has been reported as injurious to the strawberry plant. Ormerod(3) received information of damage done by it from Hundred Acres, Wickham, Hampshire, with a note that they were destroying the strawberry plants in that neighbourhood, and that it was considered a new pest in the locality. Mr Theobald has re- ceived it this year from Buckinghamshire also. Lampa (i) records it from Sweden. Sacharov(5) records it for the first time in Eussia as injurious to strawberries. "The beetle winters," he says, "underneath old leaves on the beds of strawberries; with the arrival of warm weather the insects appear and feed on the young leaves, and oviposit during April and May. The eggs are deposited by the female in a hole gnaw^ed by it in the leaf, 3-10 eggs being laid in such a hole. The egg-stage lasts 12-14 ; f. Anal proleg (side view). Fig. 1. Larva of O. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Association of Applied Biologists; Association of Economic Biologists. [Wellesbourne, Warwick, etc. ] Associatio
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiochem, bookyear1918
