File:Ants; their structure, development and behavior (1910) (14597455988).jpg

Identifier: antstheirstructu00whee (find matches)
Title: Ants; their structure, development and behavior
Year: 1910 (1910s)
Authors: Wheeler, William Morton, 1865-1937
Subjects: Ants
Publisher: New York, Columbia university press
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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male : F, Dolichoderus maricc. female : G. Sole-nopsis niolesta, female; H.Forelius inaccooki, female : I.Myrmica scabrinodis, female :K, Pachycondyla harpa.r, male; L, Pogonomyrmex inolefaciens. female; M, Tctra-inorium ccspitnm, female; Ar, Aphcrnogaster fiilra. female; O, Trachymyrmex septen-trionalis. female. The following are the veins of the wing: a. costal; b. subcostal;c, externomedian : d. anal; s, apterostigma ; c, and g. cubital; It, discoidal and sub-discoidal : /, marginal, or radius: £, transverso-median ; n. basal: in. recurrent: o.first section of radius in A, B. C. E and O. transverse cubitus in F. I and .V. Thefollowing are the cells: «. first discoidal; r. costal: i. median; .r. submedian : y.second discoidal ; w, first cubital : TV, second cubital. (These terms are used inmyrmecography. Some authors, like Handlirsch, regard what is here called the sub-costal as the radius -i- median, and the subdiscoidal as a branch of the median.) THE EXTERNAL STRUCTURE OF AXTS.
Text Appearing After Image:
^ ANTS. the .same mother. Several of the different types of venation which havebeen recognized are represented in the accompanying illustrations (Fig.ii), to which the reader is referred for the names and disposition ofllie various veins and cells. The Abdomen.—This region in ants is very highly specialized in allthree sexual phases. In some of the most primitive tribes, like theAmblyoponii and Cerapachysii, there is no sharp separation of the seg-ments into a pedicel and gaster; the basal, though somewhat nar-rower and more accentuated, preserving essentially the same structureas the more distal segments. In most ants, however, there is a well-defined pedicel which ma) consist of either one or two segments, verymovably articulated with each other and with the thorax and gaster.In the subfamilies Dolichoderinae and Camponotinae the pedicel alwaysconsists of but a single segment, the petiole, which is morphologicallythe second abdominal segment. The same condition prevails in mostPon

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