. Australian insects. Insects. Fig- 41.—Diagram of the Head of a Wasp. a, eyes ; b, clypeus ; c, labrum ; d, mandibles ; c, ocelli ;/, insertion of the antennae. (Re-drawn from Cresson's "Hymenoptera of North ;) Fig. 42. —Diagram of the Thorax of a Wasp. a, prolhorax ; b, mesothorax ; c, scutellum ; (I, postscutellum ; e, metathorax; /, tegulae ; g, parapsidal grooves. (Cresson's "Hymenoptera of N. ;) In a few anomalous groups we find the females wingless, such as Tliynnidac, MutiUidae and others; in some like the fig insects BJastoj^haginae, the males are w
. Australian insects. Insects. Fig- 41.—Diagram of the Head of a Wasp. a, eyes ; b, clypeus ; c, labrum ; d, mandibles ; c, ocelli ;/, insertion of the antennae. (Re-drawn from Cresson's "Hymenoptera of North ;) Fig. 42. —Diagram of the Thorax of a Wasp. a, prolhorax ; b, mesothorax ; c, scutellum ; (I, postscutellum ; e, metathorax; /, tegulae ; g, parapsidal grooves. (Cresson's "Hymenoptera of N. ;) In a few anomalous groups we find the females wingless, such as Tliynnidac, MutiUidae and others; in some like the fig insects BJastoj^haginae, the males are wingless and blind; in the ants, while the males and females are winged, the bulk of the community consists of wingless workers form- ing a third sex or Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Froggatt, W. W. (Walter Wilson), 1858-; Metcalf Collection (North Carolina State University). NCRS; Tippmann Collection (North Carolina State University). NCRS. Sydney, W. Brooks
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