INSECUTOR INSCI'ri;^ MENSTRUUS 165 



In conclusion it may be pointed out that the Sarcophagini 

 present affinities with the Muscidse and Stomoxydidse ; the 

 Brachicomini with the Miltogramma-Metopia types and 

 Muscidse ; the Amobiini with the Calirrhoidse and Dexiidse ; 

 and the Tephromyiini with the Miltogramma-Metopia types 

 and CaHrrhoidae. 



NEW AMERICAN MOSQUITOES 



(Diptera, Culicidae) 



By HARRISON G. DYAR and FREDERICK KNAB 



Aedes zoosophus, new species. 



Head and anterior half of mesonotum with dense scales of 

 brassy yellowish, showing a faint brownish shade near the 

 middle ; posterior portion marked with dark brown, which 

 begins squarely, is divided by a pair of whitish lines and 

 reaches the root of wing. Abdomen black above with basal 

 segmental white bands, divided into a small median portion 

 and larger white triangular lateral patches ; venter with the 

 segments black at apices and white at bases, evenly divided. 

 Wing scales wholly dark brown, dense on costa. Proboscis 

 black. Legs bluish black scaled ; femora with apical white 

 spots, the hind femur with the basal half white; hind tarsi 

 rather broadly white-ringed at the bases. Claws toothed. 



Type, female. No. 31558, U. S. Nat. Mus. ; Kerrville, Texas, 

 August 19, 1909 (F. C. Pratt). 



The species seems allied to fluviatilis Lutz and, like it, prob- 

 ably breeds in rock-holes along streams. 



Aedes gonimus, new species. 



Head and thorax with dense scales of brassy yellowish, the 

 mesonotum with two very narrow, parallel, well separated 

 brown lines, running from the front margin to the antescutellar 

 space. Abdomen black above, with broad basal segmental 

 white bands, scarcely widening on the sides, narrower posteri- 

 orly; venter white, with narrow apical segmental black bands. 

 Wing-scales wholly dark. Proboscis black. Legs black, all 



