Taenionema umatilla Stanger & Baumann, 1993

Stewart, Kenneth W., 2009, New Descriptions Of North American Taenionema Larvae (Plecoptera: Taeniopterygidae), Illiesia 5 (12), pp. 128-145 : 135

Taenionema umatilla Stanger & Baumann

( Figs. 65, 66, 67 , 76, 77 , 86 , 98 , 111 )

Distribution. Idaho, eastern Oregon.

Material examined. Oregon: Umatilla Co., Meachum Creek, Hwy 84 bridge at Meachum (type locality), 1- IV-1983, 1♀ larva, K.W. Stewart (stream iced over); 26-IV-2004, 1♂, 1♀, 1 reared ♂ with exuvium, 2 reared ♀ with exuvia, 2♀ larvae, K.W. Stewart & B. Armitage.

Characters. Color, pigmentation, maxillae, body, leg, and cercal ( Figs. 66, 67 ) setation, and sexual dimorphism ( Figs. 65 , 76, 77 ) generally typical of genus. Body length (♂ exuvium) 8.5 mm, ♀ 9 mm. Antennal segments 56-58. Cercal segments undetermined (broken). Male 9 th sternum ( Fig. 98 ) wide behind greatest width and broadly rounded (nearly truncate) apically. Female 9 th sternum ( Fig. 111 ) narrowly triangulate in apical half with narrowly rounded apex.

Figures

Figs. 57-67. Taenionema larvae. 57-65. male terminalia, dorsal. 57. T. atlanticum. 58. T. grinelli. 59. T. jewetti. 60. T. oregonense. 61. T. pacificum. 62. T. pallidum. 63. T. raynorium. 64. T. uinta. 65. T. umatilla. 66. T. umatilla. basal cercal segments. 67. T. umatilla middle cercal segments.

Figs. 68-79. Taenionema larvae. 68-75. side views of male terminalia. 68. T. atlanticum. 69. T. californicum. 70. T. grinelli. 71. T. jewetti. 72. T. oregonense. 73. T. pacificum. 74. T. pallidum. 75. T. raynorium. 76. T. umatilla side view of female terminalia. 77-79. female terminalia, dorsal. 77. T. umatilla. 78. T. atlanticum. 79. T. grinelli.

Figs. 80-86. Female Taenionema nymph terminalia, dorsal. 80. T. kincaidi. 81. T. oregonense. 82. T. pacificum. 83. T. pallidum. 84. T. raynorium. 85. T. uinta. 86. T. umatilla.

Figs. 87-99. Male Taenionema larval terminalia and 9th sterna, ventral. 87. T. atlanticum. 88. T. californicum. 89. T. grinelli. 90. T. jacobii. 91. T. jeanae. 92. T. jewetti. 93. T. kincaidi. 94. T. oregonense. 95. T. pacificum. 96. T. pallidum. 97. T. raynorium. 98. T. umatilla. 99. T. uinta.

Figs. 100-112. Female Taenionema nymph terminalia and 9th sterna, ventral. 100. T. atlanticum. 101. T. californicum. 102. T. grinelli. 103. T. jacobii. 104. T. jeanae. 105. T. jewetti. 106. T. kincaidi. 107. T. oregonense. 108. T. pacificum. 109. T. pallidum. 110. T. raynorium. 111. T. umatilla. 112. T. uinta.