. The various contrivances by which orchids are fertilized by insects. Fertilization of plants; Orchids. ClIA]'. I. FERTILISED BT INSECTS. 31 Polyommatus alexia. Ljcoena phteaa. Arge galathea. Hesperia sylvanua. â linea. Syriohthus alreolus. Anthrooeia filipendulso. â trifolii.* Lithosia complana. Leucania lithargyria (two speci- mens). Caradi'ina blanda. â alsines. Agiotis cataleaoa. Eabolia inensuiaria (two spesi- mens). Hadena dentina. Heliothis marginata (two speci- mens). Xylopliasia Bublustria ftwo speci- mens). Euolidia glyphica. Toxocampa pastinum. Melauippe rivaria. Spilodes palealis.
. The various contrivances by which orchids are fertilized by insects. Fertilization of plants; Orchids. ClIA]'. I. FERTILISED BT INSECTS. 31 Polyommatus alexia. Ljcoena phteaa. Arge galathea. Hesperia sylvanua. â linea. Syriohthus alreolus. Anthrooeia filipendulso. â trifolii.* Lithosia complana. Leucania lithargyria (two speci- mens). Caradi'ina blanda. â alsines. Agiotis cataleaoa. Eabolia inensuiaria (two spesi- mens). Hadena dentina. Heliothis marginata (two speci- mens). Xylopliasia Bublustria ftwo speci- mens). Euolidia glyphica. Toxocampa pastinum. Melauippe rivaria. Spilodes palealis. â cinctalis. Acontia luctujsa. A large majority of these moths and butterflies had two or three pairs of pollinia attached to them, and invariably to the proboscis. The Acontia had seven pair (fig. 4), and the pig. 4. Caradrina no less than eleven pair! The proboscis of this latter moth presented an ex- traordinary arborescent ap- pearance. The saddle-formed discs, each bearing a pair of pollinia, adhered to the pro- boscis, one before the other, Wltn perfect symmetry ; and Heiid and proboscis of Acontia luc- ;⢠^^M £ ^1 iwosa with seven pair of pollinia this follows from the moth of orchis pyramidalis attached having always inserted its * 'â ''« proboscis. proboscis into the nectary in exactly the same manner, owing to the presence of the guiding plates on the labellum. The unfortunate Caradrina, with its pro- boscis thus encumbered, could hardly have reached the extremity of the nectary, and would soon have. * I am inrlebtod to Mr. Pariitt for au examluation of this moth, wliich is mentioned in ihe' En- tomologist's Weekly Intelligencer,' vol. ii. p. 182, and vol. iii. p. 3, Oct. 3, 1857. The pollinia were erroneously thought to bolong to Ophrys apifera. The pollen had changed from its natural green colour to yellow; on washing it, however, and drying it, the green tint Please note that these images are extracted from scanned page images that
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
