Aedes nigrinus (F)
Aedes nigrinus (Eckstein, 1918)
Type-loc: France
Aedes nigrinus differs from Aedes sticticus with the antennal segments 1 to 3 being shorter than the others and segment 1 black (not yellow at the base).
Aedes nigrinus (F)
Aedes nigrinus (F)
Head
- HEAD - THORAX: Anopheles or not : 1. maxillary palpus clearly shorter than proboscis ; 3. scutellum clearly trilobate
- HEAD: colour of maxillary palpus : 2. dark at the base and pale at the apex
- HEAD: colour of proboscis : 1. entirely dark
Thorax
- THORAX: Prespiracular and postspiracular setae : 3. prespiracular setae absent postspiracular setae present - Aedes
- THORAX: colour of the scutum scales : 2. yellow and cream or white
- THORAX: scutum's ornamentation : 2. with continuous bands
- THORAX: metameron's ornamentation : ?
- THORAX: postprocoxal area's ornamentation : 2. scale patch absent
- THORAX: prealar areas ornamentation - Ae : 3. with 1 pale scale patch
- THORAX: shape of the longitudinal lines : 1. straight lines
- THORAX: scutum's continuous bands : 1. dark with pale bands ; 2. other colors
- THORAX: Aedes albopictus or Aedes cretinus : non décrit
Wings
- WING: general ornamentation of the wing : 5. with pale spots only on the costal margin
- WING: colour of the scales on the wing veins : 1. dark scales only ; 2. pale scales only along the costal margin
- WING: number of pale marks on the costal margin : 1. without spots
- WING: Uranotaenia or not : 2. apex of anal vein ends after mcu/cuA fork ; 4. length of the R2+R3 vein is shorter than R2/R3
- WING: ornamentation of the base (alula) : 1. with a fringe of scales
- WING: wing length from insertion to apex : ?
- WING: arrangement of the pale spots on the fringe : 1) without spot
Legs
- LEG III: colour of tarsomere 2 - Ae : 1. entirely dark
- LEG I: Orthopodomyia or not : 2. tarsomere 4 is equal or longer than tarsomere 5 ; 4. length of tarsomere 1 is shorter than tarsomere 2 through 5
- LEG III: colour of tarsomere 1 : 6. scatered with pale scales
- LEG III: colour of tarsomere 5 : 1. entirely dark
- LEG III: colour of tibia : 7. specled, in the median area at least
Abdomen
- ABDOMEN: colour of the scales on the tergite : 5. with creamy white and dark scales
- ABDOMEN: Shape of the pale basal band of tergite IV : 1. with an even widh ; 2. medianly thinned
- ABDOMEN: ornamentation of tergite IV : 2. only lateral pale scales ; 3. a basal pale band and lateral patches
- ABDOMEN: Ornametation of tergite III : 2. with a basal pale band ; 4. with an apical pale band