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10 papers found.
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Cephalic Glands in Gelastocoris (Hemiptera-Heteroptera)

investigations of these glands in the Cryptocerata have mentioned their presence only in the aquatic forms; they have never been reported in the shore-dwelling cryptocerates. - By MARGARET C. PARSONS 1 midline

The Esophageal Valve of Some Aquatic Hemiptera

International Journal of THE ESOPHAGEAL VALVE OF SOME AQUATIC HEMIPTERA BY MARGARET C. PARSONS 0 ) described this region in Sigara falleni Fieb. 0 Corixa punc$aa Ullig 0 compared it. briefly with

Respiratory Significance of the Thoracic and Abdominal Morphology of Three Corixidae, DiaPrepocoris, Micronecta, and, Hesperocorixa (Hemiptera: Heteroptera: Hydrocorisae)

International Journal of Psyche 0 0 BY MARGARET C. PARSONS Department of Zoology, University of Toronto Toronto , Ontario MSS 1A1 , Canada - compared with that of representatives of the other two

Cephalic Glands in Gelastocoris (Hemiptera-Heteroptera)

investigations of these glands in the Cryptocerata have mentioned their presence only in the aquatic forms; they have never been reported in the shore-dwelling cryptocerates. - By MARGARET C. PARSONS 1 midline

The Esophageal Valve of Some Aquatic Hemiptera

International Journal of THE ESOPHAGEAL VALVE OF SOME AQUATIC HEMIPTERA BY MARGARET C. PARSONS 0 ) described this region in Sigara falleni Fieb. 0 Corixa punc$aa Ullig 0 compared it. briefly with

Cephalic Glands in Gelastocoris (Hemiptera-Heteiopter)

investigations of these glands in the Cryptocerata have mentioned their presence only in the aquatic forms; they have never been reported in the shore-dwelling cryptocerates. - By MARGARET C. PARSONS 1 midline

Modification of the Intersegmental Region in the Pterothorax of Cryphocricos (Heteroptera: Naucoridae)

International Journal of 0 BY MARGARET C. PARSONS Department of Zoology, University of Toronto Toronto MODIFICATION OF THE INTERSEGMENTAL REGION IN THE PTEROTHORAX OF CRYPHOCRICOS HETEROPTERA

Respiratory Significance of the Thoracic and Abdominal Morphology of Three Corixidae, DiaPrepocoris, Micronecta, and, Hesperocorixa (Hemiptera: Heteroptera: Hydrocorisae)

International Journal of Psyche 0 0 BY MARGARET C. PARSONS Department of Zoology, University of Toronto Toronto , Ontario MSS 1A1 , Canada - compared with that of representatives of the other two