374 
Psyche 
[December 
1926a. Kansas Permian Insects. Part VI. Additions 
to the Orders Protohymenoptera and Odonata. ibid. 
(5) 11 (61) : 58-73. 
1926b. Fossil Insects in Relation to Living Forms. 
Nature, 117: 828-830. 
1926c. Insects of Australia and New Zealand. Sydney. 
1927. The Ancestry of the Order Hymenoptera. Trans. 
Ent. Soc. Lond. 1927 (2) : 307-318. 
Explanation of Plates 
• ■ *’ 
Plate 15 
Fig. 1. Wings of Protohymen permianus Till. 
Fig. 2. Fore wing of Protohymen elongatus, n. sp. 
Fig. 3. Wings of Permohymen schucherti Till. 
Plate 16 
Fig. 4. Wing of Doter minor Sell. 
Fig. 5. Front leg of D. minor; specimen No. 3115a, 
Mus. Comp. Zoology. 
Fig. 6. Middle leg of D. minor; specimen No. 3115a. 
Fig. 7. Antenna of D. minor ; specimen No. 3115a, 
3112a. 
Fig. 8. Head, prothorax, and mesothorax of D. minor 
(lateral) : No. 3115a. 
Fig. 9. Thorax of D. minor (dorsal) : No. 3113a. 
Fig. 10. Last five abdominal segments and cerci of D . 
minor; No. 3115a. 
Plate 17 
Fig. 11. Photograph of obverse of Protohymen per- 
mianus Till., specimen No. 3060a, Mus. Comp. Zoology. 
Fig. 12. Photograph of holotype of Asthenohymen 
kansasensis Till.; No. 5044a, Peabody Museum. 
Fig. 13. Photograph of wing of D. minor, specimen No. 
3087a, Mus. Comp. Zoology. 
Fig. 14. Photograph of part of cerci of D. minor, speci- 
men No. 3115a, Mus. Comp. Zoology. 
