. 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. the body and other legs, which are remarkablysmall. Ibalia is nearly allied to Cynips (pi. 688), but it is readilydistinguished by the length of the abdomen and the neuration ofthe wings. The singular spine on the second joint of the hindertarsi of both sexes, as well as the puncture or spiracle on the sideof the abdomen, has hitherto,


. 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. the body and other legs, which are remarkablysmall. Ibalia is nearly allied to Cynips (pi. 688), but it is readilydistinguished by the length of the abdomen and the neuration ofthe wings. The singular spine on the second joint of the hindertarsi of both sexes, as well as the puncture or spiracle on the sideof the abdomen, has hitherto, I believe, escaped the observation ofauthors. It may be here observed, that the mandibles are often not coun-terparts of each other, tlie shape being adapted to their close con-tact when at rest; other parts of the mouth are also sometimes ir-regularly formed. The student must not be misled by these excep-tions, which are most frequent in the Hymcnoptera^ occasionallyin the Coleoptcra, and probably all the Mandibulat(e. The plant figured is SteUaria jiiedia, Common Chick weed. * This family ought to have been called Cynipidce, but having adopted La-treilles term, it has been tliought better to retain it through the work to preventconfusion. 688 ,t-f/*WX. £ / ^ L^..^ /? Cv*^- r-^^ ?? /? ^ V c NERVOSA. Order Hymenoptera. Fam. Diplolepidae. Type of the Genus, Cynips Quercus radicis Linn., Fab., Curt. AntenncE inserted in a cavity in front of the face, longer than thebody in the males (1 (^), subsetaceous, pubescent, and 15-jointed,basal joint the stoutest, short and ovate, 2nd the smallest ovate,3rd the longest, suddenly bent and slightly emarginate towardsthe apex, 4th shorter and linear, the remainder decreasing iusize to the last joint, which is shghtly longer than the penul-timate ; not longer than the body, slightly clavate and 14-jointedin the females ( ? ), 3rd joint the longest but simple, 4th and5th linear, 6th stouter and shorter, the remainder su


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Keywords: ., bookcentury1800, bookpubli, booksubjectbotany, booksubjectinsects