Dyar and Knob Some American Mosquitoes. 163 



correct by the larva before us. It falls in the table with meridionalis, 

 having 12 scales in the comb f but differs in that the pecten of the tube 

 does not reach half the length. The difference is not very marked, and 

 the larvae are otherwise much alike, so that it seems not unlikely that our 

 meridionalis will fall as a synonym of serratus Theobald. Working with the 

 larvae alone and handicapped by the identification of " Janthinosoma 

 musica Say " which we had received for the adults (See Journ. N. Y. Ent. 

 Soc., xiv, 195), the larva of the true serratus being unknown, we had no 

 way of knowing that we had a larva before us the same as or near serratus 

 Theob. A bred adult (c?) of Aedes meridionalis shows the median silvery 

 thoracic band of serratus, but the specimen is not perfect and we await 

 further material before pronouncing positively on the synonymy. 



Aedes pertinax Grabham. 

 Aedes pertinax Grabham, Can. Ent, xxxviii. 316, 190G. 



Dr. Grabham has kindly communicated to us larval skins of this species 

 from Jamaica. It falls in our table (Journ. N. Y. Ent. Soc., xiv, 189, 1906) 

 with tormentor Dyar & Knab, from the Gulf coast of the United States, but 

 differs in the pecten of the tube, which does not run out so far, and has the 

 tuft just at the last tooth instead of well within. 



Aedes auratus Grabham. 

 Aedes auratus Grabham, Can. Ent., xxxviii, 313, 1906. 



Dr. Grabham has sent us also larval skins of this Jamaican species. It 

 falls in our table (Journ. N. Y. Ent. Soc., xiv, 189, 1906) under dichotomy 5, 

 with janitor and lactator. These species are Culices, and only included 

 under Aedes from the similarity of their modification. Auratus differs 

 from them in having only the single pair of hair tufts on the tube. These 

 tufts are only just within the pecten, opposite the last tooth. Except for 

 the difference in the lateral comb, the larva is very much like that of 

 Aedes pertinax Grabham. 



Aedes capricornii Lutz. 



Haemagogus capricornii Lutz in Bourroul, Mosq. do Brazil, p. 4 of key to 



species of Euculicidae, 1904. 

 Stegoconops capricorni Lutz, Imprensa Medica, (sp. no. x). 



Mr. Urich has sent us three males, which we attribute to Dr. Lutz's species 

 capricornii. The description applies excellently, except only as to the posi 

 tion of the lower cross-vein of the wings ; but as we have only males and Dr. 

 Lutz describes from females, this may easily be a sexual difference if not 

 simply varietal. We are much indebted to Dr. Lutz for copies of the pub 

 lications above referred to, but are unable to quote the latter one accurately, 

 as the separate sent us contains neither pagination nor date. The "Imprensa 

 Medica" is not available in Washington. Capricornii was described from 

 the " zone of the Tropic of Capricorn," which we infer to be the vicinity 

 of Rio de Janeiro, Brazil. The known habitat is now extended to include 



