BEUTENMULLER, MONOGRAPH OF THE SESIID^E. 225 



(1807). The species placed by Stephens in the genus Algeria are all referable 

 to Sesia as restricted by Hubner in 1806. 



Meigen in 1830 (109) placed all the species of Sesiidae in the genus Setia, 

 claiming this to be the correct spelling of the name Sesia. 



In 1832 (113) Newman attempted to prove the identity of Sphinx asili- 

 formis with 5 vespiformis of Linne and erected the genus Memythrus for the 

 same. This is the European species, known as Sciapteron tabaniformis, with 

 which our memythrus tricinctus of Harris is congeneric. 



During the same year Newman (114) restricted Algeria to apiformis and 



bembeciformis. In the same work he erected the genus Pyropteron with Sesia 



chrysidiformis as the type. Bembecia Hubner is used for Sesia ichneumoni- 



f or mis ; Synanthedon for 6". tipuliformis and allied species ; Conopia for 6". myo- 



piformis, and Paranthrene for vespiformis. The first four names are synonymous 



with Sesia and the latter must be placed in Memythrus. 



In 1845 Herrich-Schaefifer (145) restricted Sesia hylcziformis to Bembecia 

 Hubner. This is the first valid restriction of the genus Bembecia, with which 

 our B. margmata is congeneric. 



Staudinger in 1854 (167) used the name Trochilium for the same species as 

 Stephens in 1828, Bembecia for hylcziformis, and erected the genus Sciapteron for 

 Sphinx tabaniformis Rott., which is synonymous with Memythrus vespiformis as 

 restricted by Newman in 1832. 



Walker in 1856 (179) erected the genus Sannina, with S. uroceriformis as 

 the type, and Tars a for T. bombyciformis (= Memythrus asilipennis). 



In 1868 Grote and Robinson (222) proposed the genus Zenodoxus, with Z. 

 maculipes as the type. 



Moschler in 1876 (271) erected the genus Grotea for Algeria syringe? 

 Harris. The name was preoccupied and changed by him in 1879 (285) to 

 Podosesia. 



In 1 88 1 Hy. Edwards (307) erected the following genera: Larunda, with 

 L. solituda as the type ; the name, however, was preoccupied in the Geometridse ; 

 Euhagena with E. nebraskce as the type ; Albuna with Ai. hylotomiformis (= 

 pyramidalis) as the type, and Carmenta with Algeria pyralidiformis as the type. 

 The last name is synonymous with Sesia. 



Hy. Edwards in 1882 (322) erected the genus Sospita for ^Egeria quinqui- 

 caudata Ridings (= Sannina ttroceriformis), but the name being preoccupied was 

 changed by him in the same year (323) to Phemonoe. In the same paper Alca- 

 thoe was proposed for Algeria caudata Harris, Fatua for Trochilium denudatum 

 Harris, and Harmonia for Algeria pini Kellicott. The latter name was pre- 

 occupied in the Coleoptera. 



In 1893 Beutenmuller (451) united the genus Fatua Hy. Edwards with 

 Tarsa Walker. Both are synonymous with Memythrus. 



The same writer in 1894 (462) proposed Vespamima for Bembecia sequoice 



