Archive image from page 52 of The anatomy, physiology, morphology and. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author; CUbiodiversity4765349-9885 Year: 1890 ( THE HEAD AND MOUTH ARMATURE. 39 ing organs in the larva, and contented himself by describing the head in the following manner: 'The first and smallest segment exhibits the mouth opening on its ventral surface and two pairs of papilla; on its dorsal
Archive image from page 52 of The anatomy, physiology, morphology and. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author; CUbiodiversity4765349-9885 Year: 1890 ( THE HEAD AND MOUTH ARMATURE. 39 ing organs in the larva, and contented himself by describing the head in the following manner: 'The first and smallest segment exhibits the mouth opening on its ventral surface and two pairs of papilla; on its dorsal surface ' [2, p. 105] ; and although he subsequently describes the mouth organs at con- siderable length, he does not again refer to the maxillaj, except to mention ' two thread-like thickenings in the recently-hatched larva, which spring from the angle of the mouth and run Y\Q. 6.—The head of the Cossus caterpillar after Lyonet. a, antenna; tml, mandible ; mx, maxilla ; mx', the second maxilla ; /, ligula. obliquely towards the back' [p. 108] ; and adds, ' the two chitinous ridges of the newly-hatched larva are replaced in the adult by a fan-like group of similar ridges, which diverge from the angle of the mouth and form a half circle at the side of the mouth opening' [p. 109]. These are his only descriptions of the stomal disc. He refers subsequently to the two pairs of papilla; as the antennas and maxillary palpi [p. 120]. A comparison of the maxilla; with those of a Icpidopterous
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Keywords: 1890, archive, blowflies, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, drawing, historical, history, illustration, image, london_pub_for_the_author_by_r_h_porter, lowne_benjamin_thompson_1839_, page, picture, print, reference, vintage
