50 THE CANADIAN ENTOMOLOGIST. 



3. Stigma tapering from near base to apex. 



4. Upper discal cell of hind wings but slightly, if any, exceeding 

 lower. 



5. Posterior angles of pronotum black. 



P. notatiis. 



1. Clypeus angularly emarginate, lobes round. 



2. Eyes oval on upper margin. 



3. Stigma straight until apical third, when it slants abruptly upwards. 



4. Upper discal cell of hind wings extending considerably beyond 

 lower. 



5. Posterior angles of pronotum and tegulse whitish. 



MOSQUITO NOTES.— No. 6. 



BY C. S. LUDLOW, M. SC. 

 Laboratory of the Office of the Surgeon-General, U. S. Ann}-, Washington, D. C. 



(Continued from page 34.) 



In the same sub-family as Cellia flava comes an insect closely 

 related to Chagasia, Cruz., having the outstanding whorls of scales on the 

 lower joints of the antennae, but lacking the outstanding scales on the 

 thorax, and differing also in that part of the abdomen is scaled. 



Chagasia (?) lifieata, n. sp. — Head very dark, practically black, as is 

 most of the insect, covered with dark brown and white-forked scales, the 

 latter on the vertex and cephalad part of the occiput, very long slender 

 white scales projecting forward between the eyes, dark bristles near the 

 eyes ; antennae very dark, verticels and pubescence white, basal joint 

 brown, with white upright flat scales, ist and 2nd joints with white scales, 

 those on the second joint longer, more curved, largely fusiform and out- 

 standing, those on the first joint narrow, flat and more closely appressed ; 

 palpi heavily covered with dark brown scales, rather erect near the base, 

 the apex white, and two narrow white bands dividing the remainder into 

 three nearly equal parts ; proboscis heavily covered with dark brown 

 scales, tip light ; eyes dark, clypeus dark. 



Thorax : prothoracic lobes with broad fusiform white scales and dark 

 bristles ; mesonotum covered sparsely with broad fusiform white scales 

 arranged in lines, near the nape a few slender curved white scales, most 

 of which project forward, a distinct line of the broad fusiform scales 

 cephalad of and over the wing joint, not especially outstanding, but the 

 scales broader than most of those on the mesonotum, a few scales near 



February, 1908 



