Identifier: textbookofentomo00pack (find matches)
Title: A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist
Year: 1898 (1890s)

Alpheus Spring Packard  (1839–1905)
	Alternative names	Packard; A. S. Packard; Alpheus Spring Packard, Jr.; Alpheus S. Packard; Packhard
	Description	American zoologist, university teacher, lepidopterist, botanist, geologist and paleontologist American entomologist, palaeontologist
	Date of birth/death	19 February 1839	14 February 1905
	Location of birth/death	Brunswick	Providence
	Authority file	: Q2839658 VIAF: 135145067416266631073 ISNI: 0000000081083880 LCCN: n79134030 NAID: 10580412 NLA: 35685364 WorldCat

Subjects: Insects
Publisher: New York, The Macmillan company London, Macmillan & co., ltd.
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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made by three different observers onthe freshly hatched larva of the Julidfe, it appears that the an-cestral diplopods were six-footed, or oligopod, the larva of Pauropus 1 The term which we proposed for this hypothetical ancestor of insects, Leptus-like or Leptiform, was an unfortunate one, since the name Leptus was originallygiven to the six-legged larva of a mite (Trombidinm), the origin of the mites andother Arachnida being entirely different from that of the myriupods and insects,c 18 TEXT-BOOK OF ENTOMOLOGY (Fig. 13) approaching nearest to our idea of the ancestral rnyriopod,which might provisionally be named Protopauropus. Relations of the Symphyla to Insects. — Opinions respecting theposition of the Symphyla, represented by Scolopendrella (Fig. 14),are very discordant. By most writers since Newport, Scolopen-drella has been placed among the myrio-pods. The first author, however, to examineits internal anatomy was Menge (1851), whodiscovered among other structures (tracheae,
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Fio. 13.— Paurnpits huarleyi, much enlarged. A, enlarged view of head, antennne, and firstpair of legs (original). /», young. — After Lubboek. (, longitudinal M-etion of Pauropus !/ i/f/ei/i,^ .a, brain ; /, salivary gland; 1; mid-intestine ; (/, rei-tum; /(. ventral nervi-oonl ; c, bud-like rem-nants of coxa-; </, penis ; e, vesicula seminalis ;/, ductus glandularis ; i1, divisions of testes. —AfterKenyon. etc.) the silk-glands situated in the last two segments, and whichopen at the end of each cercus. He regarded the form as thetype of a genus or family intermediate between the hexapodLepismid;e and the Scolopendridae. In 1S731 the writer referred to this form as follows: It maybe regarded as a connecting link between the Thysanura and Myrio-l Proc. Bust. Soc. Nat. Hist., xvi, 1873, p. 3. RELATIONS OF INSECTS TO OTHER ARTHROPODA 19 poda, and shows the intimate relation of themyriopods and the hexapods, perhaps not suffi-ciently appreciated by many zoologists. In 1880 Ryder

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