Handbook of medical entomology . bodylouse. After Morrow. 86 Parasitic Arthropods Ni and are provided with powerful claws fitted for clinging to hairs. The females (fig. 69) measure to 2 mm. in length by mm. in breadth. The male averages alittle over half as large. The eggs,or nits, are fixed at the base of thehairs. Only a few, ten to fifteenare deposited by a single female,and they hatch in about a weekstime. The young lice mature intwo weeks. The pubic louse usually infeststhe hairs of the pubis and theperineal region. It may pass tothe arm pits or even to the beardor moustache. Rar
Handbook of medical entomology . bodylouse. After Morrow. 86 Parasitic Arthropods Ni and are provided with powerful claws fitted for clinging to hairs. The females (fig. 69) measure to 2 mm. in length by mm. in breadth. The male averages alittle over half as large. The eggs,or nits, are fixed at the base of thehairs. Only a few, ten to fifteenare deposited by a single female,and they hatch in about a weekstime. The young lice mature intwo weeks. The pubic louse usually infeststhe hairs of the pubis and theperineal region. It may pass tothe arm pits or even to the beardor moustache. Rarely, it occurson the eyelids, and it has evenbeen found, in a very few instances,occurring in all stages, on the may be contractedfrom beds or even from badh in-fested persons in a crowd. Wehave seen several cases which un-doubtedly were due to the use ofpublic water closets. It producespapular eruption and an intensepruritis. When abundant, thereoccurs a grayish discoloration ofthe skin which Duguet has shown. Melanoderma caused by the bodylouse. From Portfolio of Dermo-chromes, by permission of Rebman& Co., New York, Publishers. is due to ^ poisonous saliva injected by the louse,as is the melanoderma caused by the body pubic louse may be exterminated by themeasures recommended for the head louse, orby the use of officinal mercurial ointment. Hemiptera Several species of Hemiptera-Heteroptera arehabitual parasites of man, and others occuras occasional or accidental parasites. Of allthese, the most important and widespread are the bed-bugs, belong-ing to the genus Cimex (= Acanthia).
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915
