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Identifier: smithsonianmisce941936smit
Title:
Smithsonian miscellaneous collections
Year:
1862 (
1860s)
Authors:
Smithsonian Institution
Subjects:
Science
Publisher:
Washington : Smithsonian Institution
Contributing Library:
Smithsonian Libraries
Digitizing Sponsor:
Smithsonian Libraries
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Text Appearing Before Image:
ification is seen to be merely a thinning of the scleroticwall in the form of a narrow sac or tube on the inside and a slightindentation of the outer surface (fig. 2 I). The reason for the ex-istence of this structure as well as of the serial pore organ is entirelyunknown to me. The mandible is articulated with the head by means of one dorsaland one ventral condyle. The dorsal one is situated on the gena (fig.2 J, mad) and the ventral one on the mandible (fig. 2 F, mav). Thedorsal articulation is an hemispherical acetabulum on the mandiblewhich fits over a spherical projection of the head capsule immediatelyin front of the eye. The posterior articulation is a spherical projec-tion on the base of the ventral or outer face of the mandible. It fitsinto a crescent-shaped acetabulum at the anterior extremity of thecrassa. The maxillae (fig. 2 G) are situated immediately ventrad of themandibles at each side of the labium. Each is composed of four parts, NO. 13 STAPH YLINIDAE BLACK WELDER 15
Text Appearing After Image:
mad -Morphology of the trophi of CreophUus villosus (Grav.). A, ventral aspect of labium, without palpi. B, labial palpus. C, detail of tip ofterminal segment of labial palpus. D, dorsal aspect of hypopharynx. E, detail ofone of the serial pores from dorsal side of mandible. F, ventral aspect of rightmandible, showing prostheca. G, ventral aspect of left maxilla. H, maxillarypalpus. I, detail of median pore organ from outer edge of mandible. J, dorsalaspect of left mandible. l6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 94 the body of the maxilla, separated into several sclerites, two distallobes, the galea (ga) and the lacinia (Ic), and the maxillary palpus(nixp). The body of the maxilla is composed fundamentally of threeparts, the cardo, the stipes, and the palpifer. The cardo (cd) is thebasal sclerite, which articulates at its mesal edge with the subgenae.The stipes (st) is secondarily divided into two sclerites, apparentlythe proximal or mesal one bearing the large lacinia (Ic) an
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