THE CANADIAN ENTOMOLOGIST. 101 



MOSQUITO COMMENT. 



BY HARRISON G. DYAR AND FREDERICK KNAB, WASHINGTON, D. C. 



Dr. Ludlow addresses her remarks (Can. Ent., XLI, 21, 1909) to 

 the senior author of this note. In a joint article, like the one in question 

 (Can. Ent., XL, 312, 1908), the responsibility is jointly shared, and Dr. 

 Ludlow should have addressed us both. Any other course is likely to 

 lead to error and to the imputation of responsibility in the wrong quarter, 

 as in the present instance. 



We are glad to learn that Dr. Ludlow uses precautions to prevent, 

 as far as may be, errors arising from the unfortunate manner in which her 

 specimens are preserved. Whether the error in the locality given for 

 Anopheles perplexens arose as suggested by us, or as Dr. Ludlow now 

 thinks probable, is immaterial to the point at issue ; the point gained is 

 that Dr. Ludlow now admits the error, and we may with the more security 

 omit the species in any consideration of the North American fauna. 



We would earnestly suggest to Dr. Ludlow's consideration such a 

 disposition of her types that they would be easily accessible to students, 

 either at the Surgeon-General's office or at the National Museum. 



We would point out that the new genus, Calvertia, is preoccupied by 

 Calvertius, Sharp (Coleoptera), and Calvertia, Warren (Lepidoptera). 



Speaking of preoccupied names, the Culicid genus Carrollla, Lutz, 

 has a narrow escape from that fate. We note the existence of Carolia, 

 Cantr. (Mollusca), and Carollia, Gray (Mammalia), which will certainly 

 cause confusion, yet all must stand under the latest rules. We do not 

 think that the rule should be held to apply to terminations of names which 

 may be in masculine, feminine, neuter or barbarous form, as the distin- 

 guishing of these is an unnecessary tax on the memory, but it undoubtedly 

 applies to differences of single letters in the body of the name. We are 

 able to recognize the genus Carrollla, Lutz, as distinct from Culex, the 

 type being Carrollla iridescens, Lutz, and to add to it a second species, 

 Melafioconiou Urichii, Coquillett (Can. Ent., XXXVIII, 61, 1906), which 

 will now stand as Carrollia Urichii, Coquillett. 



The following new species has come to our notice : 



Culex trachycampa, n. sp. — Proboscis black, moderately long and 

 slender, hardly swollen at the tip. Palpi black-scaled. Mesonotum 

 blackish, clothed with dark bronzy-brown scales ; abdomen subcylindrical, 

 depressed, truncate at tip, dark-scaled above with coppery lustre, beneath 

 with distinct white basal segmental bands. Legs blackish with bronzy 



March, 1909 



