THE CANADIAN ENTOMOLOGIST. 399 



Directors — Division No. i, Mr. Arthur Gibson, Dept. of Entomology, 

 Central Experimental Farm, Ottawa ; Division No. 2, Mr. C. E. Grant, 

 Orillia ; Division No. 3, Mr. A. Cosens, Parkdale Collegiate Institute, 

 Toronto; Division No. 4, xMr. C. W. Nash, East Toronto; Division No. 5, 

 Mr. F. J. A. Morris, Trinity College School, Port Hope ; Division No. 6, 

 Mr. R. S. Hamilton, Collegiate Institute, Gait; Division No. 7, Mr. R. C. 

 Treherne, Grimsby. 



Delegate to the Royal Society — Vrof. J. M. Swaine, Macdonald 

 College, P. Q. 



Auditors- — Professors S. B. McCready and J. W. Crow, O. A. 

 College, Gueljjh. C. J. S. B. 



ON PROFESSOR SMITH'S TREATMENT OF THE FORMS OF 

 GRAPHIPHORA (T.4^.NI0CAMPA) ALLIED TO 



HiBisci, guenep:. 



BY HARRISON G. DYAR, WASHINGTON, D. C. 



Prof, [ohn B. Smith's article on certain species of Tceniocampa (recte 

 Graphiphora Hubn.) should not pass unnoticed. We may be mistaken, 

 but it a])pears as if it were written because Mr. Dod had ventured to have 

 an opinion on the subject, and this was intended to overwhelm him with 

 a quantity of new names and figures of genitalia. If so, Prof Smith has 

 overreached himself and landed in the synonymy. We have taken the 

 pains to prepare slides of the genitalia of all the principal forms of the 

 (\x2i\)\\\-^\\oxd,% \i\\d.itx hibisci ^^\'^ pacifica '\x\ the collection of the National 

 Museum, and are in a position to state that Prof. Smith's figures i, 2 and 

 3 represent one form only, his figures 5, 6 and 7 another, while figure 4 

 represents a doubtful third, and figure 8 a good fourth. In short, the 

 apparent differences in the figures represent variation, differences in 

 position, and the accidents of drawing. If Prof. Smith had put the real 

 diff'erences into words in tabular form, this would have been evident, even 

 if perhaps not suitable to his purpose. The hibisci type has the harpes 

 broad, the clasper evenly curved like a sickle ; the qiiinque/asciata type 

 has the harpes narrowed, the clasper crumpled or sharply bent. Nubilata 

 is a derivative of the quinqiiefasciata form, and I tentatively leave it 

 separate. Pacifica is abundantly distinct. 



The differences of method between Mr. Dod and Prof. Smith make 

 an interesting comparison. Mr. Dod depends upon the markings and 

 coloration of the insects. Prof. Smith upon the structure of the genitalia. 

 Prof. Smith's method sounds the more reliable, yet Mr. Dod is the one 

 who is right in his conclusions. Mr. Dod makes one species with varieties, 



December, 1910 



