Peltoperlopsis, Illies, 1966

Stark, Bill P. & Sivec, Ignac, 2007, New Species And Records Of Asian Peltoperlidae (Insecta: Plecoptera), Illiesia 3 (12), pp. 104-126 : 125

Provisional key to Peltoperlopsis males

1 Mainland species; aedeagus symmetrical ( Fig. 65 ) ………………………………………………...……. 2

1’ Island species; aedeagus asymmetrical ( Fig. 58 ) ……………………………...………………………. 5

2 General color dark brown ………………………. 3

2’ General color yellow or pale brown.………….. 4

3 Tergum 10 with U-shaped sclerite; vesicle broadly arcuate, shorter than wide; aedeagus with dorsolateral pair of narrow sclerites; known from Vietnam.………………………………….. malickyi

3’ Tergum 10 apparently without U-shaped sclerite; vesicle longer than wide; known from Yunnan, China ……………………………………... nigrifulva

4 Cercal segments with enlarged dorsal bristles on mid segments ( Fig. 66 ); vesicle broadly arcuate, shorter than wide ( Fig. 64 ); ventroapical aedeagal lobes sparsely armed laterally with fine setal-like spines, apex bilobed ( Fig. 65 ) …………….. spinosa

4’ Cercal segments without conspicuously enlarged dorsal bristles; vesicle about as wide as long ( Fig. 69 ); ventroapical aedeagal lobes armed laterally with dense patch of fine setal-like spines, apex indistinctly lobed ( Fig. 70 ) ……………….. swanni

5 Known from the Philippines …………………….. 6

5’ Known from Borneo …………………………….. 7

6 Sinistral aedeagal lobe weakly sclerotized along ventrolateral margin ( Fig. 52 ); aedeagal lobes armed with small spines and microtrichia ( Fig. 55 ) ………………………………………………. cebuano

6’ Sinistral aedeagal lobe membranous; aedeagal lobes armed with apical patch of cultriform spines ………………………………………….. mindanensis

7 Sinistral aedeagal lobe bifurcate apically and armed with a few large spines at dorsolateral margin ( Fig. 46 ) …………………………... anomala

7’ Sinistral aedeagal lobe trifurcate apically and armed dorsolaterally with small spicules; known from Mt. Kinabalu ………………………… concolor

Figures

Figs. 62-66. Peltoperlopsis spinosa structures. 62. Head and pronotum, 63. Male terminalia, dorsal, 64. Male sternum 9, 65. Aedeagus, ventral,. 66. Male cerci, dorsal.

Figs. 58-59. Peltoperlopsis concolor structures. 58. Aedeagus, dorsal, 59. Aedeagus, ventral.

Figs. 67-70. Peltoperlopsis swanni structures. 67. Head and pronotum, 68. Male terminalia, dorsal, 69. Male sternum 9, 70. Aedeagus, dorsal.

Figs. 50-55. Peltoperlopsis cebuano. 50. Head and pronotum, 51. Male terminalia, dorsal, 52. Aedeagus, ventral, 53. Male sternum 9, 54. Female terminalia, 55. Aedeagus, dorsal.

Figs. 44-49. Peltoperlopsis anomala. 44. Male terminalia, dorsal, 45. Male sternum 9, 46. Aedeagus, dorsal, 47. Aedeagus, ventral, 48. Larval thoracic sterna, 49. Larval abdominal apex and cerci.