Memoirs of the National Academy of Sciences . nation arethe cast shells, and further examinationand search for them .should be made onliving or alcoholic si)ecimens. The labialpalpi (mx. p.) and the paraclypeal pieces,as well as the eye-suture .separating the••ghized eye from the rest of the eye, arewell developed. Abdominal segments 2-9are free and armed with the enormousdorsal spines well described and figuredby Riley. Figs. 14 and 15 represent thecast pupa skin of Frodoxus decipiensRiley. The venation is almost exactly as iuTineidre, but the structure of the maxillae,as described and figure
Memoirs of the National Academy of Sciences . nation arethe cast shells, and further examinationand search for them .should be made onliving or alcoholic si)ecimens. The labialpalpi (mx. p.) and the paraclypeal pieces,as well as the eye-suture .separating the••ghized eye from the rest of the eye, arewell developed. Abdominal segments 2-9are free and armed with the enormousdorsal spines well described and figuredby Riley. Figs. 14 and 15 represent thecast pupa skin of Frodoxus decipiensRiley. The venation is almost exactly as iuTineidre, but the structure of the maxillae,as described and figured by Riley, presents an extraordinary feature, iu which this family, andespecially the present genus, differs from all the other insects. I refer to the remaikable maxillary tentacles. Riley thus describes them: The male possi-sses no very marked characters, Imt the female Is most anomalous; first, iu possessing a pair ofprehensile, spinous, maxillary tentacles (tig. V>), found, so far as we now kuow, iu no other genus of Lead ?tn^? . 11.—Pupa of Ilucculatrix fjvinqnmoteUa; A, obli(iue: B, side view ofcb, coeoon-burster; C, side view of bead of C. caiiadensella. Proc. Amer. Assoc. Adv. Sc, xxix, 1880. MEMOIES OF THE NATIONAL ACADEMY OF SCIENCES. (>5
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