Plate LXII 



Caudal GUIs of Nymphs* 



Fig. 48. Lestes vigilax. Fig. 53. Enallagma exsula7is. 



Fig. 49. Lestes forcipatus. Fig. 54. Enallagma antennatum. 



Fig. 50. Lestes congener. Fig. 55. Enallagma traviatum. 



Fig. 51. Lestes ungukulatus, Fig. 56. Enallagma signatum. 



normal gills. Fig. 57. Enallagma polhdum. 



Fig. 52. The same, dark gills. 



*One of the lateral gills removed in most eases. 



