136 ILLINOIS BIOLOGICAL MONOGRAPHS [454 



Crampton, G. C. 



1918. The thoracic sclerites of immature pterygotan insects, with notes on the relation- 

 ships indicated. Proc. Ent. Soc Wash., 20:39-65. 



1919. The genitalia and terminal abdominal structures of males, and the terminal 

 abdominal structures of the larvae of "chalastogastrous" Hymenoptera. Proc. 

 Ent. Soc. Wash., 21:129-255. 



1921. The sclerites of the head, and mouth-parts of certain immature and adult insects. 



Ann. Ent. Soc. Am., 14:65-110. 

 Cresson, E. T. 



1887. Synopsis of the families and genera of the Hymenoptera of America, North of 



Mexico, together with a catalogue of the described species, and bibliography. 



Trans. Am. Ent. Soc., Suppl. Vol. 1887, pp. 1-351. 

 Dahlbom, G. 



1835. Conspectus Tenthredinidum, Siricidum, Oryssinorum, Scandinaviae quas 



Hymnopterorum familiae. Hafniae. 

 Daixa Torre, C. G. 



1894. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymi- 



cus. Vol. 1. Tenthredinidae incl. Uroceridae. 

 De Geer, C. 



1752. Memoires pour servir a l'histoire des insectes. Stockholm. 

 Doncaster, L. 



1907. Gametogenesis and fertilization in Nematus ribesii. Quar. Jour. Micr. ScL, 



51:101-113. 

 Dyar, H. G. 



1893a. Notes on two species of Tenthredinidae from Yosemite, Calif. Can. Ent., 



25:195-196. 

 1893b. Descriptions of the larvae of certain Tenthredinidae. Can. Ent., 25:244-248 

 1894. Descriptions of the larvae of certain Tenthredinidae. Can. Ent., 26:42-45, 



185-189. 

 1895a. Descriptions of the larvae of certain Tenthredinidae. Can. Ent, 27:191-196, 



208-212. 

 1895b. On the larvae of some Nematoid and other sawflies from the northern Atlantic 



states. Trans. Am. Ent. Soc, 22:301-312. 

 1895c The larvae of the North American sawflies. Can. Ent., 27:337-344. 

 1896. Notes on sawfly larvae. Can. Ent., 28:235-239. 

 1897a. On the larvae of certain sawflies (Tenthredinidae). Jour. New York Ent. Soc, 



5:18^0. 

 1897b. New Sawflies (Tenthredinidae) with descriptions of larvae. Jour. N. Y. Ent. 



Soc, 5:190-201. 

 1897c Some structural points in sawfly larvae. Proc Ent. Soc. Wash., 14:218-220. 

 1897d. A new sawfly. Proc Ent. Soc. Wash., 4:262-263. 

 1898. Notes on some sawfly larvae, especially the Xyelidae. Can. Ent, 30:173-176. 



1898. On the larvae of certain Nematinae and Blennocampinae, with descriptions of 

 new species. Jour. N. Y. Ent Soc, 6:121-138. 



1899. Larvae of Xyelidae. Can. Ent., 31:127. 



1900. On the larvae of Atomacera and some other sawflies. Jour. N. Y. Ent. Soc, 8: 

 26-31. 



Exslix, E. 



1911. Zur systematik der Chalastogastra. Deutsch. Ent. Zeitschr., 1911, 434-439. 



1912. Die Tenthredinoidea Mitteleuropas. 1. Deutsch. Ent. Zeitschr., 1912, Beiheft 

 Essie, E. O. 



1914. The cherry fruit sawfly. Month. Bull. Cal. State Comm. Hort, 1914, 31. 



