Fig. 64—Head and thorax of female mosquito (Ochlerotatus lativittatus); the short maxillary palpi are just above the proboscis and below the thread-like antennæ.
Fig. 65—Head and thorax of male mosquito (O. lativittatus); the maxillary palpi are as long as the proboscis.
Fig. 66—Head of female mosquito (Anopheles), with mouth-parts separated to show the needle-like parts: a, a antennæ; b, b, palpi; c, labrum; d, d, mandibles; e, hypopharynx; f, f, maxillæ; g, labium; h, labella. (After Manson.)
Fig. 67—Cross-section of proboscis of female (a) and male (b) mosquito. lxe, labrum-epipharynx; mn, mandibles; mx, maxillæ; hp, hypopharynx; sal, salivary duct; li, labium; tr, trachea; mus, muscles. (After Nuttall and Shipley.)