THE CANADIAN ENTOMOLOGIST. 213 



more gray scales than in the 9 . Thorax and abdomen as in the 9  

 Legs as in the 9 ; ungues of the fore and mid legs unequal, both 

 uniserrated, of the hind legs equal and simple. Wings narrow ; the fork- 

 cells short ; the first submarginal longer and narrower than the second 

 posterior, its stem more than half the length of the cell ; stem of the 

 second posterior as long as the cell ; posterior cross-vein about its own 

 length distant from the mid cross-vein. 



Length. — 5 to 5.5 mm. 



Habitat. — Stanford University, California. 



Time of Capture. — September and October. 



Observations. — Described from a series of 5 9 s and \ $?, sent me 

 by Professor Kellogg. It is a very marked species, but presents at first 

 sight a resemblance to Culex tceniorhynchus, Wiedemann. It differs, 

 however, in (i) having the legs apically and basally pale banded, {2) in 

 their being marked with lines or lines of spots, and (3) in the simple, not 

 uniserrated, ungues in the 9 (4), in die structure of the $ palpi, etc. 

 Moreover, a hasty examination will show that this species is not nearly so 

 compactly built as in tceniorhynchus. The specimens show some variation, 

 both in regard to the thoracic adornment and in the leg ornamentation. 

 One 9 has no signs of the two small pale thoracic spots, and the last hind 

 tarsal in one appears almost white, and in others the median dark band 

 is very broad, making the tarsal segment almost all dark coloured. 



PREOCCUPIED NAMES. 

 In the Trans. Amer. Ent. Soc, Vol. 29, No. 2, 1903, pp. 168-169, 

 Mr. Chas. Robertson creates, among other new genera in the Megachilidae, 

 Gnathodon and Ceratias. Both names have been previously used : 

 Gnathodon, Rang., 1834 — Mollusca. 

 Gnathodon., Gray, 1836 — Mollusca. 

 Gnathodon., Jard., 1845 — Aves. 

 Ceratias, Kroycov, 1845 — Pisces. 



E. S. G. Titus, Washington, D. C. 



Corrigenda. — Page 191 (July Can. Ent.), fourth line from bottom, 

 for Eyrtominum read Cyrtomitim ; and second line from bottom, for 

 trimula read treniula. 



