May, '07] ENTOMOLOGICAL NEWS. 177 



rate from the fourth joint, whereas the serration begins at the 

 fifth joint. This error is, at least in part, responsible for the 

 re-description of the species, since at the time of writing, com- 

 parison was made with those species only having the same 

 antennal structure. 



Aplwdius blaisdelli Fall = sparsus Lee. 



Both Dr. Blaisdell and myself were at fault in assigning this 

 species to Horn's Group G, in which the middle and hind tibiae 

 are fimbriate with equal spinules. Mistakes of this sort are 

 very easily made in this genus, especially with specimens in 

 which the spinules have become nearly equal through wear. In 

 the present instance I must confess that I gave this matter no 

 attention, accepting without question the doctor's group dis- 

 position of the species. There are two specimens standing as 

 sparsus in the Le Conte cabinet, the second one. however, is 

 not like the one bearing the label and has probablv since been 

 placed there conditionally; it is probably a member of Group 

 G, but I did not take time to verify this supposition. This 

 species, which was taken in numbers by Dr. Blaisdell, near San 

 Francisco, in a wood-rat's nest, has lately been taken sparingly 

 by both Dr. Fenyes and myself at Pasadena in similar situations. 



Oxo plus marginatus Lec.=the $ of crucntus Lee. 



This synonymy is announced in the Le Conte bibliography, 

 by Henshaw, but appears to have been rejected later. Mr. 

 I knshaw tells me that he does not know by whom it was pro- 

 posed, or on whose authority it was annulled ; I have no doubt, 

 however, of its correctness. 



Clasper of F. vexator Coq., described in this journal, Vol. xviii, p. 102. 



