Vol. XXSX] ENTOMOLOGICAL NEWS. 



L. latipes Walsh. 



This form is found nesting under stones. The females are 

 often dimorphic, one form being peculiar in having much 

 flattened femora and tibiae. The species is not as numerous 

 as L. interject us and L. claviger. 



L. claviger Roger. 



Wheeler states that this is the most common species of the 

 subgenus Acanthomyops. The workers build their nests under 

 stones along the edges of woods where they can find warmth 

 and moisture. Solitary dealated females have been found under 

 rocks during the winter. 



L. interjectus Mayr. 



This is the largest species of the subgenus. The workers 

 build their nests under stones and in old logs. These ants are 

 very fond of attending subterranean aphids. In numbers this 

 is one of the most common species in the State. 



Isaac P. Trimble, M.D., Early Economic Entomo- 

 logist of New Jersey. 



By HARRY B. WEISS, New Brunswick, New Jersey. 

 A trifle over fifty years ago there lived in Newark, New 

 Jersey, a Dr. I. P. Trimble, who was interested in insects 

 from an economic standpoint and whose chief contribution to 

 entomology was a work of 139 quarto pages devoted to the 

 plum curculio and codling moth. This was entitled "A Treat- 

 ise on Insect Enemies of Fruits and Fruit Trees" and was 

 published in 1865. Ninety-nine pages and eight of the eleven 

 plates in tlie book are taken up with the plum curculio and 

 this was the most complete account of that insect up to that 

 time. 



In the introduction Dr. Trimble states that he- studied in- 

 sects injurious to fruits for many years, at first for the pro- 

 tection of his own crops and later for knowledge that he had 

 been unable to find in books and. in addition, his interest was 

 increased bv reading such works as those of Kirby and Spence, 

 Iluber, T.atreille, Say. Harris and Fitch. From observation. 



