Plate XXXVII 

 IIlipopU!)i(il (tnd Abdominal Bctdlh of Cliironommn' 



Fig. 1. Cricotopus hicixctus, hyiiopygiiuii. one side. 



Fig. 2. Cricotopm trifasciatus, hypopygium. apical ])oi'tion of lat- 

 eral arm. 



Fig. 3. Ortlwcladius mgritus, hypopygium, one side. 



Fig. 4. Cricotopus flavihasis, hypopygium. one side. 



Fig. 5. Tricliochulius <lis1inctus, hypopygium, one side. 



Fig. 6. Triclwcladius disiinctus, var. hicolor, hypopygium, one side. 



Fig. 7. Tncliodadins infuscatus, hypopygium, one side. 



Fig. 8. Ortliochidius pilipcs, hypopygium, one side. 



Fig. 9. Ti-icliocladius politus, hypopygium, one side. 



Fig. 10. T. striatus, hypopygium : a, inner production of basal part 

 of lateral arm ; h, apical portion of lateral arm. 



Fig. 11. Orfhodddius nivoriundus, antepenultimate al)dominal seg- 

 ment of male. 



Fig. 12. Ortlwcladius nivoriundus, hypopygium, one side. 



Fig. 13. Dactylocladhis plcuraUs, hypopygium, one side. 



Fig. 14. Pscctrocladius vernalis, hypopygium, one side. 



Fig. 15. Caynptocladius favens, hypopygium. one side. 



Fig. 16. Pscudochirouonuis richardsoni, hypopygium, one side. 



