294 MOSQUITOES OF NORTH AMERICA 



third segments small triangles by projecting forward in the middle, and on the fol- 

 lowing segments forming narrow bands, venter corered largely with white scales; 

 coxa and base of femora pale yellow, rest of legs and tarsi wholly brown, tarsal 

 claws small and simple; veins of wings sparsely covered with hairs and scales, 

 petiole of first submarginal cell one-half the length of that cell, the cross-veins at 

 ends of first and second basal cells distant from each other. Length 4 1/3 mm. 

 Two specimens; Arizona. Prof. P. H. Snow. 



Oeisinal Desceiption of Cttlex saxatilis : 



2. — Head brown, occiput covered with yellowish white scales and some dark brown 

 ones; antennae and proboscis dark brown, the former with scattered whitish scales; 

 palpi brown, apparently three jointed, the fourth being minute, pointed and wholly 

 retracted within the third joint. Mesonotum clothed with rich brown scales and pale 

 yellowish ones at the margins; two naked lines extend down the anterior part and 

 two pale yellowish spots are on the centre of the dorsum which become more or less 

 diffused posteriorly; scutellum brown with yellowish scales and long black bristles 

 on the posterior margin; metanotum grayish brown; pleura light brown with small 

 patches of dirty white scales; halteres yellowish. Abdomen dark brown, all seg- 

 ments with apical white bands which become broad laterally, till, beneath, it is white 

 with dark brown basal comers. Legs black, coxae, base and under side of femora and 

 a small spot at the knee creamy; claws simple; wings hyaline, the scales brown, 

 petiole of first sub-marginal cell about one-third the length of this cell. Length 

 4.7-5 mm. 



Types, six females in the New Jersey Experiment Station collection. Dis- 

 tinguished from Culex territans, its" nearest American ally, by its large size, dark 

 colour, broadly banded abdomen and spotted thorax. 



Pupae of Culex saxatilis were found August 31st on Garret Mountain (Paterson), 

 in a rock-bottomed pool, associated with larvae and pupae of C. pipiens. In the after- 

 noon of the same day two females emerged together with several pipiens. Sept 1st, 

 5 others, all females, hatched with more pipiens. Later emergences were all pipiens. 

 As In the preceding species the last of the brood was collected in the pupal stage; 

 no larvae remaining. 



OSIOIKAI. DeSCBIPTION OF ClTLEX FBICKIi: 



Female: Head covered with pale ochraceous, almost white scales, long curved 

 ones, heavily intermingled with dark brown forked scales on the occiput and vertex, 

 flat lateral scales, light around the eyes, with a few dark bristles projecting for- 

 ward; antennae brown, verticels and pubescence brown, first joint with a few light 

 scales, basal joint covered with " frost " and a few white scales; palpi dark brown, 

 distal joint small; proboscis brown; clypeus brown, with " frost;" eyes dark brown. 



Thorax brown; prothoraclc lobes covered with pale ochraceous scales and dark 

 brown bristles; mesonotum with narrow curved dark brown scales, a golden-brown 

 in some lights, a few pale ochraceous ones hardly forming a line on the lateral mar- 

 gins and an arch of them surrounding the " bare space," two submedian bare lines 

 from cephalic end nearly to " bare space " covered with " frost," so that they seem 

 like two very fine but distinct white lines; scutellum brown, with pale ochraceous 

 curved scales and large brown bristles; pleura covered with white " frost" and hav- 

 ing a couple of large bunches of white, flat spatulate scales; metanotum brown. 



Abdomen brown, covered with rather broad flat scales, tending to iridescence, 

 narrow white apical bands, and white apical lateral spots continuous with the scaling 

 of the venter, which is white; white apical hairs. On the last segment the apical 

 band becomes much diminished on the median line, possibly sometimes broken so as 

 to form two spots. 



Legs as a whole brown; coxae and trochanters light and nearly naked, but showing 

 the white " frost;" femora light at base and on ventral aspect, a small light knee- 

 spot minutely involving both si_4es of the joint; tibia brown, a minute apical light 

 spot involving both sides of the joint, remainder of tarsi all brown; all ungues small, 

 equal, and simple. 



The colouring as a whole is dark, but the scales are very sensitive to the position 

 of the light, and on the legs it is almost impossible to determine if there be a very 

 narrow light line on the ventral aspect of the tibia or not, for in some lights it is not 

 apparent, and in others it appears present. The mesothorax shows the same trait, 

 in that the tips of the scales become golden-brown, and are thus very misleading. 



Wings clear; scales brown, slender, covering the distal half of wing rather heavily; 

 cells vary somewhat in the two wings, first submarginal about a third longer and 

 nearly the same width as second posterior, the stem of the former about a fourth the 

 length of its cell, of the latter a little more than half the cell's length; super- 

 numerary and mid about the same length and meet, posterior cross-vein slightly 



