66 ENTOMOLOGICAL SOCIETY 



pairs of abdominal legs. Calopus (specimens examined) has 

 seven pairs of ambulatorial pads ; the one on the prothorax is 

 missing, but there are two additional pairs, one being on the 

 4th and the other on the 5th abdominal segment. There are 

 four pairs of the abdominal legs, one pair being on the ventral 

 surface of the 5th abdominal segment. 



Doctor Hopkins exhibited sketches of the clypeus and 

 labral hooks of the larva of Calopus angustus Lee., the beetle 

 referred to in the previous note by Mr. Burke. From his 

 further studies of coleopterous larvse he had, he stated, found 

 additional evidence to indicate that the labrum represents a 

 primitive segment. 



Mr. Titus read the following note for Pro'fessor Webster : 



NOTE ON HADENA SEMICANA WALKER AND H. MISERA 



GROTE. 



By F. M. WEBSTER. 



Late in June, 1903, the writer's attention was called to in 

 juries to young corn in Trumbull County, Ohio, caused by 

 noctuid larvse, but the method of attack was quite in contrast 

 with that of any other larvae known to him. By rearing 

 some of these larvae, among which no differences whatever 

 could be detected either in appearance or method of attack, 

 two so-called species were obtained, viz, H. fractillnca Grote 

 (now considered a variety of H. semicana) and H. misera 

 Grote. For this reason the writer has never been able to look 

 upon the present arrangement of these forms as satisfactory. 



From larvse one-half to two-thirds grown, taken at this 

 time, imagoes of both forms appeared during the last days of 

 July and up to August 10. Their method of attacking the 

 corn was quite unique, in that they crawled up the plants and 

 eating downward devoured the whole stem to near the roots. 

 If the plant happened to be a small one, 2 or 3 inches high, 

 the larva entered the folded younger leaf, but if the plant was 

 larger it ate along the edges of the central leaves until it 

 reached the more tender portion and then worked directly 

 downward. At that time the writer was unable to find any 

 published statements relative to the habits of these insects, nor 

 has anything of that nature since appeared. 



On June 13, 1905, after the lapse of twelve years, reports 

 of injuries of a precisely similar nature, accompanied by larvse 



