SeasonalityPresent from early spring to fall, peaking in early to mid summer.IdentificationAbdominal tergites with apical bands of pale silvery scales, otherwise, relatively unmarked. In Alberta, it is easily distinguished from other Culex. Larva: antenna constricted beyond insertion of antennal seta 1-A; head setae 5-C and 6-C with 1 or 2 branches (5-C is very rarely 3-branched).
SeasonalityMay – July.IdentificationAdult: ventral margin of anepisternum, anterodorsal angle of katepisternum, postspiracular area, and underside of paratergite all with patches of scales; second and third tarsomeres with white bands occupying one quarter or more of each segment; hypostigmal area scaled; wing scales aggregated into spots at base of Rs and at R2+3 and R4+5, costa subcosta and radius with scattered white scales, crossveins scaled. Larva: antennae half as long as head capsule; siphon three times longer than greatest width; dorsolateral abdominal setae 1-VI and 1-VII usually double, saddle setae fine and minute, prothoracic setae 1-P single; antennae with coarse spicules.
See Wood, Dang & Ellis 1979 pdf
SeasonalityEarly spring to late fall. One of the last mosquitoes present in fall.IdentificationAdult: ventral margin of anepisternum, anterodorsal angle of katepisternum, postspiracular area, and underside of paratergite all with patches of scales; tarsomeres dark-scaled; costa, sub-costa and radius with numerous scattered yellow scales; tarsomeres with pale yellow scales; wing scales not aggregated into spots. Palpus of male with terminal segment inflated, largely lacking setae. Larva: antennae half as long as head capsule; siphon three times longer than greatest width; dorsolateral abdominal setae 1-VI and 1-VII usually triple; saddle setae 1-X as long or longer than saddle, usually single.
SeasonalityMay to mid or late summer.IdentificationPleural areas largely devoid of scales except for a few post-spiracular scales; abdominal tergites banded or patched basally and apically with pale scales; scutal integument reddish-brown; aedeagus sub-parallel sided, broadly rounded or truncate. Larva: very difficult to distinguish from C. morsitans. Antennae as long as head capsule; antennal seta 1-A inserted in the distal third, with branches extending beyond the tip of the antenna; siphon six times longer than greatest width or longer; pecten teeth of the siphon small; head setae 5-C and 7-C usually with more than 6 and 8 branches respectively, seta 4-X (ventral brush) of anal segment generally with 20 or more setae.
SeasonalitySpring to mid or late summer.IdentificationPleural areas largely devoid of scales except for a few post-spiracular scales; abdominal tergites banded or patched only basally with pale scales; scutal inegument dark brown; aedeagus distinctly diamond-shaped, pointed at the apex. Larva: very difficult to distinguish from C. minnesotae. Antennae as long as head capsule; antennal seta 1-A inserted in the distal third, with branches extending beyond the tip of the antenna; siphon six times longer than greatest width or longer; pecten teeth of the siphon larger than minnesotae; head setae 5-C and 7-C usually with fewer than 6 and 9 branches respectively, seta 4-X (ventral brush) of anal segment generally with 18 or fewer setae.
SeasonalityPresent from early spring to fall, peaking in early to mid summer.IdentificationAbdominal tergites with apical bands of pale silvery scales, otherwise, relatively unmarked. In Alberta, it is easily distinguished from other Culex. Larva: antenna constricted beyond insertion of antennal seta 1-A; head setae 5-C and 6-C with 1 or 2 branches (5-C is very rarely 3-branched).
SeasonalityMay – July.IdentificationAdult: ventral margin of anepisternum, anterodorsal angle of katepisternum, postspiracular area, and underside of paratergite all with patches of scales; second and third tarsomeres with white bands occupying one quarter or more of each segment; hypostigmal area scaled; wing scales aggregated into spots at base of Rs and at R2+3 and R4+5, costa subcosta and radius with scattered white scales, crossveins scaled. Larva: antennae half as long as head capsule; siphon three times longer than greatest width; dorsolateral abdominal setae 1-VI and 1-VII usually double, saddle setae fine and minute, prothoracic setae 1-P single; antennae with coarse spicules.
See Wood, Dang & Ellis 1979 pdf
SeasonalityEarly spring to late fall. One of the last mosquitoes present in fall.IdentificationAdult: ventral margin of anepisternum, anterodorsal angle of katepisternum, postspiracular area, and underside of paratergite all with patches of scales; tarsomeres dark-scaled; costa, sub-costa and radius with numerous scattered yellow scales; tarsomeres with pale yellow scales; wing scales not aggregated into spots. Palpus of male with terminal segment inflated, largely lacking setae. Larva: antennae half as long as head capsule; siphon three times longer than greatest width; dorsolateral abdominal setae 1-VI and 1-VII usually triple; saddle setae 1-X as long or longer than saddle, usually single.
SeasonalityMay to mid or late summer.IdentificationPleural areas largely devoid of scales except for a few post-spiracular scales; abdominal tergites banded or patched basally and apically with pale scales; scutal integument reddish-brown; aedeagus sub-parallel sided, broadly rounded or truncate. Larva: very difficult to distinguish from C. morsitans. Antennae as long as head capsule; antennal seta 1-A inserted in the distal third, with branches extending beyond the tip of the antenna; siphon six times longer than greatest width or longer; pecten teeth of the siphon small; head setae 5-C and 7-C usually with more than 6 and 8 branches respectively, seta 4-X (ventral brush) of anal segment generally with 20 or more setae.
SeasonalitySpring to mid or late summer.IdentificationPleural areas largely devoid of scales except for a few post-spiracular scales; abdominal tergites banded or patched only basally with pale scales; scutal inegument dark brown; aedeagus distinctly diamond-shaped, pointed at the apex. Larva: very difficult to distinguish from C. minnesotae. Antennae as long as head capsule; antennal seta 1-A inserted in the distal third, with branches extending beyond the tip of the antenna; siphon six times longer than greatest width or longer; pecten teeth of the siphon larger than minnesotae; head setae 5-C and 7-C usually with fewer than 6 and 9 branches respectively, seta 4-X (ventral brush) of anal segment generally with 18 or fewer setae.