Ichneumonologia brittannicaThe ichneumons of Great Britain; a descriptive account of the families, genera and species indigenous to the British islands, together with notes as to classifiation, localitites, habitats, host, etc . Fr., 1895, pi. iii., ff. r-6 ; Slc. Also compareMarsh. (Braconidae). Trans. Ent. Soc, 1885 ; Saunders, Acul. Brit. Isles, 1896, Struct, pi., f. i ;Cameron, Phytoph. Hym., 1882-93 ; &c., &c. XXXVl INTRODUCTION. nervures, and these sufficed, when mentioned at all, to subsequent authorstill Korster elal)oiated names fur all the nervures and all the cells. Sincethese conve
Ichneumonologia brittannicaThe ichneumons of Great Britain; a descriptive account of the families, genera and species indigenous to the British islands, together with notes as to classifiation, localitites, habitats, host, etc . Fr., 1895, pi. iii., ff. r-6 ; Slc. Also compareMarsh. (Braconidae). Trans. Ent. Soc, 1885 ; Saunders, Acul. Brit. Isles, 1896, Struct, pi., f. i ;Cameron, Phytoph. Hym., 1882-93 ; &c., &c. XXXVl INTRODUCTION. nervures, and these sufficed, when mentioned at all, to subsequent authorstill Korster elal)oiated names fur all the nervures and all the cells. Sincethese convey little or nothing, however, beyond their sound to the un-initiated, I prefer a more direct method than tliat of Marshall, transposedto the Ichneumonidae by , and pro[)Ose the adoption of thefoll(jwing intelligible orismology, which claims nothing but simplicity,facility of retention and more or less uniformity with those terms appliedto analogous organs in the other groups of Hymenoptera. In the forewing, the nervures set forth in the figure are best explainedby the names attached to them. The costal and sub-costal are united inthe costa, which extends from the radix (B) to the base of the stigma^ ;. Cells of the Fouk Wing.—i, 2, 3, basal ; 4, 5, 6, cubital ; 7, 8, g, discoidal ; 10, anal ; 11, apical, or radial ; a, of the Hind Wing,—r, costal ; 2, 3, basal ; 4, anal ; 5, radial ; 6, cubital ; 7, 8, first and second discoidal ; /;, buineral ntrvure. from the apex of the stigma to that of the wing (at a) is the metacarpus- ;from the radix emanate two other nervures, the median* and the posterior.*Ihe median is continued, from its junction with the first recurrent to theapical margin of the wing, under the name of cubital nervure, thatpart before the second recurrent ** being the internal cubital,^ sometimesemitting a central nervelet, and beyond it the external cubital,^ which is 1 Vorderrand, Forst. i Holnifiren termed tlie costal nervure the first
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