136 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bull. 



Fig. 16. Ophiogomphus howei. i. Dorsal aspect, showing color pattern. 

 2. Lateral aspect of thorax and abdomen showing color. 3. Vulvar lamina. 

 4. Frontal aspect of head, showing position of occipital horns. 5- Left 

 lateral aspect of the hind end of the abdomen ; the dotted line on segment 9 

 shows the outline of the yellow spot. 6. Caudal aspect of the same, ventral 

 parts only. 7. Left lateral aspect of the genitalia of the second abdominal 

 segment. 8. Dorsal aspect of the hind end of the abdomen. In figs. 5, 6, 

 and 8 the black-tipped apices of the inferior appendage furnish good land- 

 marks for comparison; sba, subanal lamina; spra, supra-anal lamina. (From 

 Calvert and Bromley.) 



