THE CANADIAN ENTOMOLOGIST. 385 



MOSQUITO NOTES— No. 4. 



BV C . S. LUDLOW, M. SC, 

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



Among the mosqtiitoes lately sent from the various Army Stations 

 are the following, of interest mostly because of their apparent close relation 

 to already known forms : . 



Uranotcenia cceruleocephala, Theob., var. lateralis, n. var. — $ . Head 

 covered with flat blue scales^ becoming white around the eyes, a couple 

 of brown bristles between, and a few around, the eyes, no fork scales; the 

 scales on the occiput change from a dark indigo or violet to a light blue, 

 according to the direction of the light, and when viewed from the side 

 may even seem brown with a wide white border around the eyes, but in 

 other positions are some shade of blue ; antennae brown, verticals and 

 pubescence brown, basal joint light testaceous, with a few thin flat scales; 

 palpi also light brown, very short, hardly longer than the depth of the 

 clypeus, the last joint reduced to a knob ; proboscis dark brown, swollen 

 at the tip ; clypeus testaceous ; eyes brown and silver. 



Thorax brown, prothoracic lobes covered with flat scales, which change 

 from white to bright blue ; mesothorax covered with long slender brown 

 scales, slightly if at all curved, suggesting lateral wing scales in their 

 general appearance, a median row of long brown bristles, and clusters of 

 them near the wing joint and scutellum, a small bunch of flat change- 

 able (bright blue to white) scales just cephalad of the wing joint; scutellum 

 brown, covered with brown flat scales, with green iridescence, and a {f^^ 

 border bristles ; pleura brown, with one large bunch of flat changeable 

 (bright blue to white) scales on the mesopleura ; metanotum brown. 



Abdomen brown, heavily covered with brown flat scales, with green 

 iridescence, unbanded, but with well marked lateral, apical white spots on 

 each segment ; venter almost entirely light scaled. 



Legs : coxae and trochanters light, and white scaled, femora all light 

 ventrally, but brown dorsally, the tibiae much darker, and the remainder 

 of the legs brown ; ungues very small, simple and equal. 



Wings brown, covered with brown scales, the median broad, rather 

 short, and often truncate, the lateral broadly lanceolate, and much longer 

 than the median ; isl submarginal cell much (i^) shorter and somewhat 

 narrower than the 2nd posterior, the stem nearly three times as long as 

 the cell, and a third longer than that of the 2nd posterior ; posterior cross- 

 November, 1905. 



