The Acarina Or Mites. a Review of the Group for the Use of Economic
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Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices I I u£ mi***! Issued December 15, 1915. United States Department of Agriculture, OFFICE OF THE SECRETARY. Report ISTo. 108. [Contribution from the Bureau of Entomology, L..cO. Howard. Chief.] THE ACARINA OR MITES. A REVIEW OF THE GROUP FOR THE USE OF ECONOMIC ENTOMOLOGISTS. BT NATHAN BANKS, Entomological Assistant. WASHINGTON: GOVERNMENT PRINTING OPriCE. 1915. I CONTENTS. Page. Page. Preface 7 Parasitidae 71 Inlrfxliiction 7 Oribatoidea 90 Synopsis of superfamilies 17 Oribatidae 95 Synopsis of families 18 Hoplodermatidae 102 Eupodoidea 20 Labidostommatidae 103 Eupodidse 20 Sarcoptoidea 104 Cn-ptognathidae 23 Tarsonemidte 104 BdelUdae 23 TyrogljT)hidEe 109 Trombidioidea 26 Canestriniidae 118 Cheyletidae 26 Analgesidae 119 Anystidaj 30 Listrophoridae 126 Tetranychidae 32 Sarcoptidae 128 ErythriBidae 38 Cytoleichidae 133 Trombidiidae 41 Demodicoidea 134 Ca^culidae 45 EriophyidaD 134 Ilydrachnoidea 45 Demodicidae 139 llydnu'hnidaj 45 Opilioacaridse ^ 140 Ilalacaridse 54 Uncertain Acari 140 Ixodoidea 56 Collecting, preparing, and rearing mites 141 Parasitoidea 70 List of works useful in the study of American Spcl;corhynchida3 70 Acarina 143 HolothyridiJO 70 Index and generic synonjTny 147 . ^lUd3S . ILLUSTRATIONS. TEXT FIGURES. Page. Page. 1. Dorsal view of a mite 8 Fig. 47. Stigmaeus floridanus: Adult and de- 2. Ventral view of a mite 8 tails 36 3. Palpi of various form^ 9 48. Acheles 37 4. Legs of various mites 10 49. Tetranychoides californica and pal- 5. Anatomy of Paras i^us 11 pus 37 6. 'Emhiy oi Parasitus 12 50. Raphignathus brevis 37 7. A mite, Trombidium: Egg, larva, 51. Tetranychopsis spinosa 37 adult 13 52. Tenuipalpus californicus 3S 8. Venter of an eupodid 20 53. NeophylJobius americanus and claw. 38 9. A mite, AUchus roseus 20 54. Details of Erythraeus 39 10. Cephalothorax of Bimichaelia 21 55. Atomus maculatus 39 11. Dorsal view of the mite Notophal- 56. Leptusof -Eryrtraewsonaplantlouse 39 lus 21 57. Erythraeus simplex and palpus 40 12. Linopodes antennaepes 22 58. Venter of Smaris 41 13. Rhagidia pallida 22 59. Caeculisoma: Tarsus 1 41 14. Tydtus: Beak and leg I, from below. 22 60. Egg of Trombidium 41 15. Eupodes: Legs I and IV 22 61. Eye of Trombidium 41 16. Erynetes concolor: Tarsus and pal- 62. Claws of Trombidium 41 pus --- 22 63. Leg I of Trombidium 42 17. Teneriffia: Palpus 23 64. Mandible and details of Trombid- 18. Cryptognathus lagenu 23 ium 42 19. Venter of a 5(fe?Za 24 65. Larva (leptus) of a Trombidium 42 20. Y.gg oiBdella 24 66. 'Laxva oi Allothrombium and mouth 21. Bdclla peregrina 25 parts 43 22. Bdclla tenella 25 67. Larva of Trombidium from cricket. 44 23. Mandibles and palpus of Cunaxa. 25 68. Trombidium locustarum 44 24. Cheyletussp - 26 69. Palpus of Trombidium giganteum . 44 25. Cheyletus pyriformis: Beak and pal- 70. Palpus of Trombidium magnificum. 44 pus, tip of leg I, and claws of leg II. 26 71. Caeculus americanus 45 26. Cheyletus audax, from below 27 72. Limnochares: Venter 46 27. Chcylcticlla canadensis 28 73. Limnochares: Eyes and dorsal plate 46 28. Chcletopsis norneri 28 74. Eylais sp 46 29. Harpyrynchuslongipilus: Female.. 29 75. Eylais: Eye plate 46 30. Harpyrynchuslongipilus: Larva... 29 76. Genital suckers of hydrachnids 47 31. Psorergates simplex 29 77. Arrenurus sp: Male 47 32. Myohia canadensis 29 78. Arrenurus sp: Palpus 50 33. Picobiahelleri 30 79. .4 rrmttru* sp: Female from below. 50 34. Picobiahelleri: Tarsus and head 30 80. Larva of a hydrachnid 50 35. Venter of Anystis 30 81. Carva of Hydrachna attached to leg 36. Tarsotomus spinatus 31 of an insect; nymph inside 51 37. Pterygosoma texana: Adult and de- 82. Limnesia sp.: Palpus and co.xal tails 31 plates 51 38. Tetranychus bimaculatus 32 83. Tyrrellia circularis 51 39. Details of Tetranychus 32 84. Thyas sp 51 40. Details of Tetranychus 33 85. Mandible of Thyas sp 51 41. Leg of Tetranychus 33 86. Palpus of Thyas sp 51 42. Genital organs of Tetranychus 34 87. Coxal plates of Hygrobates 52 43. Claws of Tetranychus 34 88. Palpus of Hygrobates 52 44. Tetranychus gloveri: Palpus and 89. Palpus oiAtractides 52 mandibular plate 34 90. Coxal plates of Sperchon 52 45. Bryobia pratensis: Female and de- 91. Palpus of Sperchon 52 tails 35 92. Venter of Lebertia 52 46. Bryobia pratensis: Larva 36 93. Piona sp., and palpus above 53 3 . .. REPORT 108, U. S. DEPARTMENT OF AGRICULTURE Page. Page. Fig. 94. Fiona sp.: Larva 53 Fig. 149. Hacmogamasus americanus 78 95. Ataxsp 53 150. Rhodocarus roseus 78 96. Coxal plates of A tax 53 151. Mcgisthanus floridanus 79 97. Tarsal claw of Atax. 54 152. Iphiopsis sp., caroncle and pcri- 98. Palpus of Atax 54 treme 80 99. Claws of Halacaru^ 54 153. Macrocheles carolinensis: Female... 81 100. IlaJacarus sp 55 154. Macrocheles carolinensis: Venter of 101. Scaptognathus sp 55 female 81 102. Simognathus sp 56 155. Macrocheles spinatus: Legs II and 56 103. A rgas miniatus, from below IV of male : 81 104. Otobius megnini: Nymphal form 156. Caelenopsis americana 82 and details 56 157. Sejus amcricanus 82 105. Omithodorosturicata 57 158. Paragreenia alfkeni 82 106. Ixodes and Dcrmacentor: Ventral fur- 159. Laelaps cchidninus 82 rows 57 160. Parasitus sp 83 107. Ilypostome and mandibles of a tick. 58 101. Parasitus sp. : Nymph 83 108. Ixodes, Margaropus, Amhlyomma, 162. Parasitus sp. : Larva 83 Dcrmacentor, Hxmaphysalis: Stig- 163. Parasitus calcarator 83 mal plates 58 164. Parasitus predator: Leg II of male. 84 Shield of Margaropus annulatus, fe- 165. Hyletastes sp. : Adult and anal plate 84 male 59 106. Hyletastes ovalis 85 110. Margaropus annulatus: Male 59 167. Seiulus quadripilis 85 111. Margaropus annulatus: Larva 59 168. Hypoaspis mexicanus and details ... 86 112. Margaropus annulatus: Claws 60 169. Hypoaspis macropilis and details. 86 113. Margaropus annulatus: Egg 61 170. Antennophorus uhlmanni 87 114. Dermacentor variabilis: Male 61 171. Ant carrying three Antennophori . 87 115. Dermacentor variabilis: Shield of fe- 172. TJroplitella: Details 88 male 62 173. Uropoda: Details 88 116. Dermacentor: Tarsus IV 62 174. Uropoda sp. and pedicel 89 117. Dermacentor albipictus: Male 63 175. Uropoda sp 89 118. Rhipicephalus sanguineus: Shield of 176. Cilliba hirsuta 89 female 63 177. Dinychus americanus 90 119. Rhipicephalus: Palpus 64 178. Details of an oribatid 91 120. Rhipicephalus: Shield of nymph 64 179, Mouth parts of an oribatid 91 121. Rhipicephalus pulchellus: Male 64 180, Galumna sp 92 122. A mblyomma americanum: Engorged 181, Galumna sp: Nymph 92 female 65 182, Galumna hubbardi 92 123. Amhlyomma cajennense: Shield of 183, Galumna persimilis 92 female 65 184. Oribatclla valida 93 124. Amblyomma: Shield of nymph 66 185, Oribatella armata 94 125. Amblyomma: Tarsus IV 67 180, Oribatclla sp 94 120. Ilacmaphysalis chordcilis: Shield of 187, Liacarus nitidus 95 female 67 188, Liacarus carolinensis 97 127. Ixodes: Head 68 1S9, Liacarus sp: Nymph 97 128. Ixodes: Details of Leg 1 68 190. Oribella pilosus 97 129. Ixodes scapularis: Shield of female . 68 191. Notaspis montana 97 1.30. Ixodes marii: Female 69 192. Gymnnbatfs glabcr 98 131. Ixodes: Venter of male 69 193, Oripoda clongata 9S 132. Ccratixodes: Palpi of male and fe- 194, Carabodes lamellatus 98 male 70 195, Oribata graciUpes 99 133. Spclaeorhynchus praccursor 70 196. Oribata sp. : Venter 99 13 J. Ilolothyrus 70 197. Oribata sp. : Claw 100 135. Parasitus: Venter 71 198. Oribata sp.: Larva 1(X) 1.30. Parasitus: Side view 71 199. Oribata minuta 100 137. Spinturnix amcricanus 72 200. Carabodes brcvis 1(X) l.'iK. Spiuturnii: Venter 72 201. Ccphcus marginalis 1(X) 1.39. Prriglischrus j heringi: Female 73 202, Scutoirrtci pctrophagu^ 100 140. Stcrnostomum rh inolethrum 73 203, NcoUodes concentricus 101 111. Pncumonyssus simicola 74 204, Nothruss\).: Venter 101 142. Pncumonyssiis simicola: Larva 74 2a'). Nothrus banksi 101 143. Pncumonyssus: Details 7") 20C). Nothrtis truncatu^ 101 144. Ildlarachiir amrricana: Details 75 207. Nothrus taurinus 101 U.'i. Dtrmnnyssus gnllin.r 76 20S. Ilypochthoniu^ teianus 1 02 lie,. DfTmnnyssnsgallinx: Details 77 209, Iloploderma sphaerula 1 02 147. lAponyxsns nmrricanus 77 210, Phthiracarus sp.: Closed up; ventral 148, Liponyssus: Details 77 view 102 .. ILLUSTRATIONS. Page. Page. Fig. 211. Labidostomma cornuta 103 Fig. 251. A lloptes microphaethon and caroncle 123 212. Labidostomma cornuta: Venter 103 252. Analgcs passerinus: Female 123 213. Pediculoidcs S]}.: Beak and claw... 104 253. A nalgcs passerinus: Male 124 214. Pediculoidcs ventricosus: Female ... 104 254. Mcgninia tyrrclli 124 215. Pediculoidcs ventricosus: Male 104 255. Megninia albidus 124 21G. Pediculoidcs ventricosus: Gravid 256. Pteronyssus tyrrclli 124 female 105 257. Allanalgcs gracilepinnatus 125 217. Siteroptes carnea and claw 105 258. Pterodcctes armatus 125 218. Tarsonemus pallidus 106 259. Rivoltasia bispinosa 126 219. Tarsonemus latu-s: Female 106 260. Schizocarpus mingaudi: Female 126 220. Tarsonemus latus: Male 107 261. Schizocarpus mingaudi: Male and fe- 221. Tarsonemus sp 107 male 127 222. Podapolipus sp.: Male and female. 107 262. Myocoptes clinging to a hair 127 223. Pigmeophorus amcricanus and de- 263. Listrophorus validus 128 tails 107 264. Sarcoptes scabei: Male 128 224. Pigmeophorus amcricanus 108 265. Sarcoptes scabei: Female 128 225. Scutacarus americanus, from below, 266. Leg of a Sarcoptes 129 and claw 108 267. Sarcoptes in her bmrow, and eggs . 129 220. Imparipes sp 108 268. Psoroptes communis var. ovis: Male. 130 227. Tyroglyphus sp 109 269. Psoroptes communis var. ovis: Fe- 228. Hypopus of a Tyroglyphus, from male and caroncle 130 below 110 270. Chorioptes set ifer us 131 229. Histiostoma amcricana 110 271. Notoedres muris 131 230. Beak of Histiostoma amcricana Ill 272. Otodectes cynotis: Female 132 231. Leg I, and tip of mandible of His- 273. Otodectes cynotis: Tip of male abdo- tiostoma amcricana Ill men, and hind legs 132 232.