First lesson in zoology : adapted for use in schools . -Head bed-bug, showine the structure of thebeak, lab, the four-jointedlabium,whioh contains the bris-tle-like mandibles (md) andmaxillae (mx), whose bases areshown by the dotted lines inthe head; Ibr, labrum; ant, Fig. 105.—External anatomy of squash-bug, Coreus tristis. a, upper, 6, under,and c, side, view of head; ant, antenna; oc, ocellus; d. pro-, e, meso-, /, meta-notum; acf, meso-scutum; sd, meso scutellum; g, pro-, A, meso-. i, meta-pleurum; si, pro-, st, meso-, st, meta-fiternum;6p_i5. epis\ epis, epistemumof pro-, meso-,
First lesson in zoology : adapted for use in schools . -Head bed-bug, showine the structure of thebeak, lab, the four-jointedlabium,whioh contains the bris-tle-like mandibles (md) andmaxillae (mx), whose bases areshown by the dotted lines inthe head; Ibr, labrum; ant, Fig. 105.—External anatomy of squash-bug, Coreus tristis. a, upper, 6, under,and c, side, view of head; ant, antenna; oc, ocellus; d. pro-, e, meso-, /, meta-notum; acf, meso-scutum; sd, meso scutellum; g, pro-, A, meso-. i, meta-pleurum; si, pro-, st, meso-, st, meta-fiternum;6p_i5. epis\ epis, epistemumof pro-, meso-, and raeta-tborax; €t?i, em, em, epimerum of pro-, meso-, andmeta-tborax; jf. k. I, under side of the pro-, meso-, and meta-thgrax; cz,coxa; fr, trochanter; /, femur; t, tibia; ts. tarsus; m, dorsal, n. Ventral o,side, view of abdomen; sp, sp, six pairs of spiracles. (Tofacepage lOU.) TEE BUGS, OR SUCKING INSECTS. 101 their manner of taking their food. It is formed of thelong, slender needle-like mandibles and maxillae which areunited so as to form a hollow sucking-tube. The tube thusformed is ensheathed by the underlip {laiium) which islong, hollow, and composed of four joints. Aboye, thesucking-tube is protected by the labrum (Figs. 107 and108, lir). There are est
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1894
