. 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;. Blowflies. MUSCLES AND VISCERA OF THE IMAGO. 221 The muscles of the posterior wing-root consist of six fascicuH ; which arise from the mesothoracic epimeron and the great ento- pleuron. They converge and form two tendons, which are inserted into the sclerites of the posterior wing-roots ; but the exact points of insertion are difficult to determine, as th
. 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;. Blowflies. MUSCLES AND VISCERA OF THE IMAGO. 221 The muscles of the posterior wing-root consist of six fascicuH ; which arise from the mesothoracic epimeron and the great ento- pleuron. They converge and form two tendons, which are inserted into the sclerites of the posterior wing-roots ; but the exact points of insertion are difficult to determine, as their tendons branch again, and appear to form a plexus with each other. A large branch is inserted into the unguiculus. I have also traced branches of these tendons into various parts of the posterior wing-root. I. Fig. 3 .â/, A transverse section through the mesothorax ; 2, a portion of the same, in a more anterior region, to show the contents of the central blood-sinus : (7/, chyle stomach ;//', fat body ; mm, the dorsales muscles; «;', sterno-dorsal muscle ; /«'"' ///-', leg muscles ; «â , (Lsophagus ; h, nerve-roots ; s g, salivary gland ; s s, blood sinus ; /// g, thoracic ganglion ; /;â¢, paragastric trachea ; /;â ', descending trachea ; //-, ascending lateral trachea ; /r', sternal air-sac. The gracilis is a curious little muscle with a very long tendon. It arises from the apex of the long process of the parapteron, and is inserted into the parascutal plate. 4. The Muscles of the Legs scarcely differ from those of Melo- lontha. The flexor, extensor and abductor of the coxa of the anterior leg, as Hammond observed, arise from the paratreme and epitrochlea. These correspond with the three flexors of Straus Durckheim ; there is an adductor which arises from the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resem
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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1890, bookyear1890
