8 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [BuU. 



35. A. constricta, structural details. 



36. A. umbrosa, structural details. 

 27. A. mutata, structural details. 



38. Aeshna species, color patterns. 



39. Epiaeschna heros, wings, and outline of body. 



40. Libellula and Tetragoneuria, structural details of thorax. 



41. Didymops transversa, wings. 



42. Somatochlora provocans and Tellealagma daeckii, structural details. 



43. and 44. Somatochlora elongata, nymph, and adult structures. 

 45, and 46. Somatochlora minor, nymph, and adult structures. 



47. Somatochlora walshii, anal appendages of adult. 



48, and 49. S. williamsoni, nymph, and adult structures. 

 50, and 51. 5". linearis, nymph, and adult structures. 



52, and SZ. S. tenebrosa, nymph, and adult structures. 



54. S. forcipata, adult structures. 



55, and 56. 5". franklini, nymph, and adult structures. 

 57, and 58. 6". kennedyi, nymph, and adult structures. 

 59, and 60. S. albicincta, nymph, and adult structures. 

 61, and 62. S. cingulata, nymph, and adult structures. 



63. Libellula, Plathemis, Tetragoneuria and Tramea, structural details of 



adults. 



64. Plathemis lydia, labium of nymph. 



65. Perithemis domitia, labium of nymph. 



66. Erythemis simplicicollis, labium. 



6y. Sympetrum species, accessory appendages and vulvar lamina. 



