INSECT NOTES FOR I9IO. 7 



COLEOPTERA. 



Beetle injuries most frequently noticed this season were those 

 caused by Sapcrda Candida (Round-headed apple-tree borer), 

 Conotrachelus nenuphar (Plum Curculio) on the apple, and 

 Pissodcs strobi killing the terminal shoots of young pine. Other 

 injurious species are- those noted below. 



Amphicoma vulpina. 



Mr. John C. Parlin of Norridgewock sent in some specimens 

 of this species with the statement that he had seen large num- 

 bers of them clinging to oat heads and flying over the field near 

 Buckfield, Maine. He writes further, " * * * the owner of 

 the farm told me that in June he found in a corn field adjoining 

 the grass field a great number of brownish grubs which they 

 called 'little grubs' to distinguish them from the 'white grub,' 

 * * * He said they were about the diameter of a lead pencil, 

 shorter than the white grub. Of course he does not know that 

 these grubs were the larvae of Amphicoma but when he found 

 the beetles so abundant just ofif that end of the corn field he 

 connected them in thought even before I spoke of them. He 

 said there were thousands of the beetles in the field." Mr. Par- 

 lin states in a later communication that the corn field was an old 

 run out June grass field the year before. He also had seen the 

 beetles in great numbers in the vicinity of Norridgewock flying 

 over a newly mown fi.eld. 



Callidium antennatum (Black horned Callidium). 



The larva of this species was noted by Harris, and later by 

 Packard, living in the trunks of pines and junipers. It was 

 again noted in Bulletin 148 (Me. Agr. Sta.) numerous specimens 

 having been found at Athens in the attic of a new house, the 

 inference being that they emerged from the pine timber. Spe- 

 cimens were also found in Orono resting on cedar trunks. This 

 year some specimens were sent in August 10 from East Holden, 

 Maine. Lots 18 and 1294. 



Sapcrda obliqua (Alder borer) infesting birch. 



A number of specimens of this species were found in Orono 

 in the small branches (^ to i inch in diameter) of the European 

 white weeping birch (Betiila alba). At the time of pupation, 



