. British entomology; being illustrations and descriptions of the genera of insects found in Great Britain and Ireland: containing coloured figures from nature of the most rare and beautiful species, and in many instances of the plants upon which they are found. my is highly interesting and but imperfectlyunderstood. In the 136th plate of this work the caterpillar of AcronyctaSalicis is given; and from one of these (which spun itself upin a web, but died before it became a pupa, in consequence ofits being inoculated by these parasites) we obtained, the be-ginning of the following June, about h
. British entomology; being illustrations and descriptions of the genera of insects found in Great Britain and Ireland: containing coloured figures from nature of the most rare and beautiful species, and in many instances of the plants upon which they are found. my is highly interesting and but imperfectlyunderstood. In the 136th plate of this work the caterpillar of AcronyctaSalicis is given; and from one of these (which spun itself upin a web, but died before it became a pupa, in consequence ofits being inoculated by these parasites) we obtained, the be-ginning of the following June, about half a dozen males andtwice as many females; and amongst 10 or 12 more species ofthis genus, few of which appear to be described, is a pair thatI took last September upon the Achillea Millefolium^ in theIsle of Wight, not differing in form but essentially in colour. Colas is derived from the Greek, and alludes to the parasiticeconomy of this group; and the specific name of dispar is cha-racteristic of the disparity of the sexes. Our insects were inhabitants of the Trossacks, and specimensof the plant figured, Viola lutea (a variety of the yellow Moun-tain Pansy), were tolerably abundant on the north and eastsides of Schichallien the beginning of July. ^^7. yy I. -I- r „ v^;, ,? < .... /..^^--i SMARAGDINA. Order Hymenoptera. Fam. Cynipidse. Type of th Genus, Pliagonia flavicornis Hal., Curt.—Pteromalus Dal. Antennce approximating, inserted near the middle of the face, aslong as the thorax, pilose, geniculated and 13-jointed in themales (1), basal joint very long, 2nd short subpyriform, 3rd and4th minute, cup-shaped, 6 following oblong remotely articu-lated, the remainder forming an indistinctly articulated, elon-gate-conic club, the terminal joint the undiscovered. Mandibles oblong, truncated obliquely, with 4 teeth nearly ofequal size (3). Maxillce with the basal portion dilated, terminated by an ovallobe, membranous on the inside
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Keywords: ., bookcentury1800, bookpubli, booksubjectbotany, booksubjectinsects
