Taenionema jeanae Baumann & Nelson

Stewart, Kenneth W., 2009, New Descriptions Of North American Taenionema Larvae (Plecoptera: Taeniopterygidae), Illiesia 5 (12), pp. 128-145 : 133

Taenionema jeanae Baumann & Nelson

( Figs. 1 A-D, 2-7, 49, 91, 104)

Distribution. California.

Material examined. California: Orange Co. Silverado Creek in Silverado Canyon , at gravel low water crossing, 100 m above USFS gate, N 33° 45’ W 117° 35’ (paratype locality; Baumann & Nelson 2007), 6-IV- 2004, K.W. Stewart & E.F. Drake, 2 larvae; 9-II-2005, 1♂, 1♀, E.F. Drake; 10-III-2005 and 25-III-2005, 66♂ 22♀, 32 larvae, E.F. Drake; 4-IV-2005, 27♂, 28♀, 1♂ and 1♀ reared , K.W. Stewart & E.F. Drake (field correlated with no congeners and reared).

Characters. Color, pigmentation ( Fig. 1A ), maxillae ( Figs. 2-7 ), body, leg ( Figs. 1B , 49 ) and cercal setation, and sexual dimorphism generally typical of genus. Body length 9-11mm. Antennal segments ♂ 62-66, ♀ 56-60. Cercal segments ♂ 36, ♀ 38. Male 9 th sternum ( Figs. 1C , 91 ) ovate, with broadly rounded apex. Female 9 th sternum ( Fig. 104 ) broadly triangulate and narrower than male behind greatest width, with narrowly rounded apex, and anterior portion broadly triangulate with straight sides.

Figures

Fig. 1 A-D. Taenionema jeanae larva. A. habitus, scale line =2mm. B. right front leg, dorsal. C. male terminalia, ventral. D. female terminalia, ventral.

Figs. 2-7. Taenionema jeanae larval mouthparts SEM’s. 2. left lacinia, ventral. 3. right galea. 4. left mandible, ventral. 5. left mandible molar pad of pegs. 6. right mandible, ventral. 7. right mandible molar pad of pegs.

Figs. 39-55. Taenionema larvae. 39. side view T. raynorium thorax. 40-45. mesosternal Y-pattern. 40. T. grinelli. 41. T. jewetti. 42. T. kincaidi. 43. T. pallidum. 44. T. raynorium. 45. T. uinta. 46-55. right front legs, dorsal. 46. T. atlanticum. 47. T. grinelli. 48. T. jacobii. 49. T. jeanae. 50. T. jewetti. 51. T. kincaidi. 52. T. oregonense. 53. T. pacificum. 54. T. pallidum. 55. T. raynorium. 56. T. uinta.

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.