EZRA TOWNSEND CRESSON 139 



i879- (54) [Descriptions of new species of Ibalia, Alliums and 

 Pterochilus.] Proc. Ent. Sec. A. X. S. P., [879, p. 

 xvii-xix. (Trans., VII.) 



(55) [Descriptions of five new species of Eucerceris.] Proc. 



Ent. Sec. A. X. S. I'.. 1879, p. \xiii-x\i\ . Iran-., 

 VII.) 



(56) [Descriptions of ten new species of Metopius.] Proc. 



Ent. Sec. A. X. S. P., 1879, p. xxvii-xxix. (Trans., 

 VII.) 



(57) [Descriptions of seven new species of Philanthus.] 



Proc. Ent. Sec. A. X. S. P., 1879, p. xxxii. xxxiv. 

 (Trans.. VII.) 



1880. (58) Descriptions of new North American HYMENOPTERA 



in the collection of the American Entomological 

 Society. Families Tenthredinidae and UROCER- 

 idae. Trans. Am. Ent. Soc, VIII, 1-52. 



(59) Catalogue of the Tenthredinidae and Uroceridae 



of North America. Trans. Am. Ent. Soc, VIII, 

 53-68. 



(60) [Descriptions of three new specie- of Aulacus.] Proc. 



Ent. Sec. A. N. S. P., 1880, p. v-vi. (Trans., VIII.) 



(61) [Descriptions of new species of Rhitigaster, Stephanas 



and Gorytes.] Proc. Ent. Sec. A. X. S. P., 1880, p. 

 xvii-xviii. (Trans., VIII.) 



(62) [Synoptic tables of the species of Sapyga, including new 



species.] Proc. Ent. Sec. A. X. S. P.. [88o, p. xx-xxi, 

 (Trans., VIII.) 



1881. (63) [Descriptions of new species of Lin's and Astata.] 



Proc. Ent. Sec. A. X. S. P., 1881, p. iii vi. (Iran-., 

 IX.) 



(64) [Descriptions of two new species of Eucerceris and 



Mr!/ in ns.\ Proc. Ent. Sec. A. X. S. P.. l88l, p. 

 xxxviii-xxxix. (Trans., IX.) 



(65) Descriptions of tin- species belonging to the genus 



Nysson inhabiting North America. Trans. Am. 

 Ent. Soc, IX. 273-284. 



MEM. AM. ENT. SOC, I. 



