NO.1140. NORTH AMEBICAN NOCTUIDAE— SMITH AND DTAB. 191 



Fi"\ 16. Anterior femur and tibia of Jcronycia jjojjmK, male; c'niderdla, tranavcrsata, 

 and pacifica are similar. 



17. Anterior leg of male A crony eta iota. 



18. Anterior leg of male Acronijcta innotata. 



19. Anterior tibia and tarsus of Acronycta hetulac. 



20. Anterior leg of male Acronycta morula; occidvutalis is similar. 



21. Anterior leg of male Acronycta laetifica. 



22. Anterior leg of male Acronycta loheliae. 



23. Anterior leg of male Acronycta rinnnla. 



24. Anterior leg of male Acronycta manUoha. 



25. Anterior leg of male Acronycta t/risea; revellaia is practically tbe same. 



26. Anterior leg of male Acronycta spiniyera. 



27. Anterior leg of male Acronycta pruni ; radcUffei is practically the same. 



28. Anterior leg of male Acronycta qnadrata and tritona. 



29. Anterior leg of male Acronycta per8uasa. 



30. Anterior leg of male Acronycta britmosa. 



31. Anterior leg of male Acronycta clarescens. 



32. Anterior leg of male JcTOHj/c<ft a/&arH/a; orata, and hamamelis iiro practi- 



cally like it. 

 All the drawings were made by Dr. .1. B. Smith with a camera lucida and to the 

 same scale, so that the ligures are comparable. 



Platk XVIII. 



Miscellaneous structures in Acronycta: 

 Fig. 1. Showing position of tubercles on abdominal segments in larvae of lower 

 Tiueides. 



2. Showing position of tubercles on abdominal segments in larvae of Sphinges. 



3. Siiowing position of tubercles on abdominal segments in larvae of liombyces. 



4. Labial palpus of Acronycta americana. 



5. Labial palpus of Acronycta ruhricoma. 



6. Labial palpus of Acronycta betulae. 



7. Labial palpus oi Acronycta connecta. 



8. Labial palpus of Acronycta priini. 



9. Labial palpus of Acronycta hamamelis, 



10. Labial palpus of Acronycta pursnasa. 



11. Labial palpus of Acronycta ohlinita. 



12. Tarsal claw in Acronycta ruhricoma; and this is the typo found more or less 



marked in nearly all the species. 



13. Anterior leg of male Acronycta ohlinita. 



14. Anterior leg of male Acronycta xyliniformis. 

 1.5. Anterior leg of male Acronycta extricata. 



16. Anterior leg of male Acronycta perdita. 



17. Anterior leg of male Acronycta edolata and harnesii. 



18. Anterior leg of male (in group) Acronycta persuasa. 



19. Anterior leg of male Acronycta Imprcssa. 



20. Anterior leg of male Acronycta distans. 



21. Anterior leg of male Acronycta noctiraga, sperata, and emaenlata, 



22. Anterior leg of male Acronycta ilHta. 



23. Anterior leg of male Acronycta lutcicoma. 



24. Anterior leg of male Acronycta superans. 

 2.5. Anterior leg of male Acronycta niodira. 



26. Anterior leg of male Acronycta striyulata. 



27. Anterior leg of male Acronycta fuveralis and connecta. 



28. Anterior leg of male Acronycta parallela. 



