Vol. XXVl] ENTOMOLOGICAL NEWS 381 



1905, General Superintendent of the Central Lead Company 

 near St. Louis. In 1905 he suffered a nervous breakdown 

 and retired from active work. He returned to his entomologi- 

 cal studies, in which he had been interested since his four- 

 teenth year, in 1909 and was connected with the Federal Bu- 

 reau of Entomology, as expert and collaborator in Cereal and 

 Forage Insect Investigations until shortly before his death. 



Mr. Monell was prominent as an engineer and an authority, 

 more especially on lead poisoning, and his name was on the 

 rolls of many engineering and other fraternities. He was 

 also a member of the St. Louis Academy of Science and the 

 St. Louis Entomological Society. 



As a student, Mr. Monell was a leader. At the age of ten 

 he could translate Latin and French and at fourteen was an 

 ardent student of nature, and his interest in botany and en- 

 tomology, which he acquired at this time, remained with him 

 throughout his life. He was a keen observer and was espe- 

 cially interested in the Aphididae, in which group one genus 

 and several species were named for him. He was a co-worker 

 with Riley and Pergande, when the former was State Ento- 

 mologist of Missouri, and was an early contributor to ento- 

 mology, publishing his first paper, describing a new genus of 

 Aphididae, at the age of seventeen. His largest oaper (Part 

 II. Notes on Aphidinae with descriptions of New Species) 

 describing 27 new species of Aphids was written at the age 

 of nineteen, and included in a paper Notes on the Aphididae 

 of the United States zvith descriptions of new species occur- 

 ring west of the Mississippi River by C. V. Riley and J. Monell. 

 Part II was entirely Mr. Monell's work. His writings were 

 clear and concise and most of the Aphids which he described 

 as new, today stand as good and distinct species. After be- 

 coming engaged as mining engineer, he found it impossible to 

 continue actively in insect work, although he was a constant 

 correspondent of Lichtenstein. Pergande, and other prominent 

 aphidologists in the early 8o's and his large collection of Aphi- 

 didae made during his career as an engineer is evidence of 

 his great interest in the study. Although his published writ- 



