THE CAMBRIDGE NATURAL HISTORY EDITED BY Sidney Frederic S. F. (HARMER, Sc.D., F.R.S., Fellow of King's College, Cambridge ; Superintendent of the University Museum of Zoology AND Arthur Everett University Lecturer on the Morphology of Invertebrates VOLUME VI PART II. Hymenoptera continued (Tubulifera and Aculeata), Coleoptera, Strepsiptera, Lepidoptera, Diptera, Aphaniptera, Thysanoptera, London 1899 All rights reserved Zs. 5767011(0), JARD COLLEGE MARVARD COLT DEC 18 1899 frund “Men are poor things; I don't know why the world thinks so much of them.”—Mrs. Bee, by L. & M. Wintle. CONTENTS PAGE HYMENOPTERA PETIOLATA CONTINUED-SERIES 2. TUBULIFERA OR CHRYSI- DIDAE.-SERIES 3. ACULEATA-GENERAL- CLASSIFICATION-DIVISION I. HYMENOPTERA ACULEATA CONTINUED-DIVISION II. DIPLOPTERA OR WASPS HYMENOPTERA ACULEATA CONTINUED - DIVISION III. FossOP.ES FossORIAL SOLITARY WASPS — FAMILY SCOLIIDAE OR SUBTERRANEAN |