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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
er firmlysupported by the broad prothoracic segment in Orthoptera, manybeetles, etc., into which it is more or less retracted, or it is free andattached by a slender neck, easily turning on the trunk, as in dragon-flies, flies, etc. In some insects there are several chitinous plates,situated on an island in the membrane on the under side of the neck;these are the cervical sclerites of Sharp, occurring in Hymen-optera, in many Coleoptera, and in Blattidae. The basal or gular region of the head. — At the hinder part of thehead is the opening (occipital foramen) into the trunk. The cheek(gena) is the side of the head, and to its inner wall is attached themandibular muscle; it thus forms the region behind the eye andover the base of the mandibles. In the Termitidse, where the headis broad and flat, it forms a distinct piece on the under side of thehead bounding the gulo-mental region (Fig. 28). In the Neuroptera(Corydalus, Fig. 29, and Mantispa, Fig. 30) it is less definitely out-lined.
Text Appearing After Image:
Fio. 29. — Head of Corydalusc-ornntux, J : A, from above. B, from beneath. (. from the side.a. I-/!/, clypeus anterior; j>. c/y, clypeus posterior; llir, labrum ; iml. iiiiiinlible ; nur, base of firstmaxilla ; m/i, its palpus ; m, mentum ; s/n, submentum ; plpr, palpifer ; lig, fused second maxilla;ant, antenna; occ, occiput. 48 TEXT-BOOK OF ENTOMOLOGY All the gulo-mental region of the head appears to represent thebase of the second maxillae, and the question hence arises whether the submentum is not the homologueof the cardines of the first maxillaefused, and the»mentum that of thestipites of the latter also fused to-gether. If this should prove to bethe case, the homologies between thetwo pairs of maxillae will be stillcloser than before supposed. Wherethe gula is differentiated, this repre-sents the basal piece of the secondmaxillae. In Figs. 28, 29, 30, and 31,these three pieces are clearly shownto belong to the second maxillary seg-ment. It is evident that these piecesor s

Note About Images