Handbook of medical entomology . t one to five closely crowded, thus the stigmata of seg-ments three to five apparently lying in one segment; segmentsfive to eight with lateral processes; telson without lateral conical appendages (fig. 69). Crab louse of man Phthirus pubis. 276 Hominoxious Arthropods dd. Eyes indistinct or wanting; pharyftx long and slender, fulturae very-slender and closely applied to the pharynx; proboscis very long. Several genera found upon various mammals HiEMATOPiNiD^E. CO. Body swollen; meso- and metathorax, and abdominal segments two toeight each with a pair of stigmat


Handbook of medical entomology . t one to five closely crowded, thus the stigmata of seg-ments three to five apparently lying in one segment; segmentsfive to eight with lateral processes; telson without lateral conical appendages (fig. 69). Crab louse of man Phthirus pubis. 276 Hominoxious Arthropods dd. Eyes indistinct or wanting; pharyftx long and slender, fulturae very-slender and closely applied to the pharynx; proboscis very long. Several genera found upon various mammals HiEMATOPiNiD^E. CO. Body swollen; meso- and metathorax, and abdominal segments two toeight each with a pair of stigmata; eyes wanting; antennae four orfive-segmented; body covered with stout spines. Three genera found upon marine mammals a. Legs fitted for walking or jumping; spiracles of abdomen usually ventral; beak segmented,b. Apex of head usually directed anteriorly; beak arising from its apex; sidesof the face remote from the front coxae; first pair of wings when presentthickened at base, with thinner margins HETEROPTERA. 159. Taxonomic details of Hemiptera-Heteroptera. (a) Dorsal aspect; (b) seta frombedbug; (c) wing of Heteropteron; {d) leg; (e) wing of Sinea. c. Front tarsi of one segment, spade-form (palseformes); beak short, atmost two-segmented; intermediate legs long, slender; posterior pair adapted for swimming CoRixiDiE cc. Front tarsi rarely one-segmented, never spade-form; beak free, at leastthree-segmented,d. Pulvilli wanting. e. Hemelytra usually with a distinct clavus (fig. 159), clavus always ends behind the apex of the scuteUum, forming the commissure. (Species having the wings much reduced or wanting should be sought for in both sections.) f. Antennae very short; meso- and metastemum composite; eyes always present. Siphtmculata and Hemiptera 277 g. Ocelli present; beak four-segmented. OcHTERiDiE and Nerthrid^. gg. Ocelli wanting; antennas more or less hidden in a groove. h. Anterior coxaj inserted at or near anterior margin of the prostemum; front legs


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915