. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. CLASSIFICATION AND HABITS OF TICKS. 41 Dorsal surface of capituluin rectangular, sides straight; male without anal plates. A 3. Second and third palpal segments extend laterally into sharp points; stigmata nearly circular Genus Margaropus (p. 49). Second and third palpal segments even; stigmata comma-shaped. Genus Rhipicephalus (p. 47). 4. Eyes present; external border of palpi straight; coxse I bidentate. Genus Dmnaccntor (p. 49). Eyes absent; external border of palpi uneven; coxee I not bidentate. Genus
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. CLASSIFICATION AND HABITS OF TICKS. 41 Dorsal surface of capituluin rectangular, sides straight; male without anal plates. A 3. Second and third palpal segments extend laterally into sharp points; stigmata nearly circular Genus Margaropus (p. 49). Second and third palpal segments even; stigmata comma-shaped. Genus Rhipicephalus (p. 47). 4. Eyes present; external border of palpi straight; coxse I bidentate. Genus Dmnaccntor (p. 49). Eyes absent; external border of palpi uneven; coxee I not bidentate. Genus (p. 52). Subfamily 5. Anal groove siirrounds anus anteriorly and opens posteriorly; eyes absent; stigmal plate nearly circular Genus Ixodes (p. 54). Anal groove surrounds anus posteriorly and opens anteriorly; eyes present; stigmal plate reniform Genus Amblyomvia (p. 581. Lahille has recently" published an ingenious graphic table for the separation of the families and genera of Ixodoidea. It is reproduced Familias SUB-ORDEN: ArPAGOSTOMA Argasidae (^ \ ^ nrmthodoros- ^ HrpmaphusaliS' O \ f^ IW - Aponomma " Anommatd ^j% _ _ NeumannieNa Anopli. lxodidaB{ \ Ommata ) ^^ ArtiopliL^ ~ > (Jmrnata Penssopli /Q\ j ,^% jAnommatai Ambluomma " ^, Dprmacentor • ^ Hyalomma (^ C^ ^ Rhipicephalus" rg>--Boophilus" Ixodes' EschaLocephalus Ceralixodes'. Fig. 2.—Graphic table for the separation of the families and genera of ticks. (From Lahille.) The underscored genera are represented in the United States. here as figure 2. The genera underscored are known to be repre- sented in the United States. The suborder Arpagostoma of Lahille is the same as the superfamily Ixodoidea of Banks, used by us. Family ARGASIDiE. The family Argasidte is represented by two genera, Argas and Ornithodoros. They are readily d,istinguished by the characters given in the table. The species are parasitic on mammals and birds. a Ixodides Argent., 1905, p. Please note
Size: 1654px × 1510px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology
