Archive image from page 161 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 ( 136 THE JNTEGUMENTAL SKELETON OF THE IMAGO. margin. The edges of the cleft are continuous with the margins of the groove in the theca, and are united as far as the edge of the disc by a remarkable bead and channel joint—the thick edge of one lobe
Archive image from page 161 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 ( 136 THE JNTEGUMENTAL SKELETON OF THE IMAGO. margin. The edges of the cleft are continuous with the margins of the groove in the theca, and are united as far as the edge of the disc by a remarkable bead and channel joint—the thick edge of one lobe of the disc fits into a corresponding cylindrical channel in the other (Fig. 31). The distal surface of the disc is channeled by the well-known 'false tracheae.' In the centre there is a deep longitudinal fissure, which extends into the tubular mouth situated between the KiG. 28.—/, Tlie fulciuin : a, proximal, and /', cHstal cornua ; c, median raphe ; (/, chitinous plalc, uniting the clypeus with the cpistome ; 3, side view of the same : J>>i, pharyngeal tube ; //, lateral plate ; j, transverse section through the rostrum : ///, pharynx ; ////, mesolabrum ; a/>, apodeme of the |irclabrum ; iiix, maxilla ; ///, muscles ; Ir, trachea; ; ./, a vertical section of the mouth : //, hyoid ; //, prepharyngeal tube ; r, inner plate of the prelabrum ; /, ligula ; sii, salivary (lingual) duct ; si, stomal or hypoglossal plate ; ils, discal sclerite ; «, nodulus ; c/i, cochleariform sclerite ; s s, sesamoid sclerite ; 5, the furca. labrum and the theca. The proximal surface of the sucker is convex and covered by setae; those near its margin are ver\- long and form a fringe. Morphology of the Rostrum. — Transverse sections of the rostrum show that it consists of two parts (Fig. 28, j), a median anterior or dorsal tube {ml), which is continuous with the cavity of the labrum—this represents a mesolabrum, and
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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
