(Howardina)
Creators: name: Rivera-García, Karina D.
name: Mendez-Andrade, Alejandro
name: Díaz-Osorio, Alicia C.
name: Ibáñez-Bernal, Sergio
name: Sandoval-Ruiz, César Antonio
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Insecta
Culicidae

description: Keys to the known life stages of species of the Sexlineatus Section of the subgenus Howardina
(where applicable, in addition to species recorded in Mexico, the keys also include Ae. aurivittatus Cerqueira, 1943, Ae. brevis Berlin, 1969, Ae. brevivittatus Berlin, 1969, Ae. ecuadoriensis Berlin, 1969, Ae. eleanorae Berlin, 1969, Ae. leei Berlin, 1969, Ae. marinkellei Berlin, 1969, Ae. osornoi Berlin, 1969 and Ae. spinosus Berlin, 1969)
ADULTS(numbered couplets from Berlin 1969, updated and modified)
16(13) Hindtarsomeres 1 and 2 with white basal bands (Fig. 10c)............................................. guatemala
- Hindtarsomeres 1, 2 and 3 with white basal bands (Fig. 4c)................................................... 17
17(16) Postpronotum with broad white flat scales except for narrow upper border of yellowish moderately broad falcate scales; postspiracular scales usually present (Fig. 3b)......................................................... guerrero
- Postpronotum predominantly with narrow to moderately broad yellowish falcate scales throughout except at lower posterior angle where a few broad flat white scales may be present; postspiracular scales absent....................... allotecnon
MALE GENITALIA(extracted and modified from Berlin 1969)
5(4) Claspette long and slender, its length 2 times or more its width (Fig. 6a).......................................... 6
- Claspette small and rounded, its length less than 2 times its width............................................... 8
6(5) Lateral plates of aedeagus shallowly emarginate, lateral lobes inconspicuous............................... allotecnon
- Lateral plates of aedeagus deeply emarginate, lateral lobes conspicuous (Figs 6a, 7c)................................ 7
7(6) Gonostylar claw short, 0.25 or less the length of the gonostylus; gonocoxite relatively short and conical, its length less than 3.5 times its width at the level of the claspette........................................................... guatemala
- Gonostylar claw long, more than 0.25 the length of the gonostylus; gonocoxite long and cylindrical, its length more than 3.5 times its width at the level of the claspette (Figs 6, 7)................................................... guerrero
8(5) Gonostylar claw short, about 0.25 times or less the length of the gonostylus....................................... 9
- Gonostylar claw long, about 0.3–0.5 times the length of the gonostylus.......................................... 10
9(8) Setae of tergum IX flattened, almost leaf-like; lateral plates of aedeagus with inconspicuous lateral lobes...... ecuadoriensis
- Setae of tergum IX slender, normal; lateral plates of aedeagus with conspicuous lateral lobes............... quadrivittatus
10(8) Setae of tergum IX long, extending beyond mid-length of aedeagus or reaching the apex............................ 11
- Setae of tergum IX short, not extending to mid-length of aedeagus............................................. 12
11(10) Aedeagus longer than proctiger........................................................................ leei
- Aedeagus shorter than or subequal to proctiger......................................................... osornoi
12(11) Gonostylar claw short, less than 0.5 times the length of the gonostylus.................................. brevivittatus
- Gonostylar claw long, 0.5 times or more the length of the gonostylus........................... eleanorae, aurivittatus
FEMALE GENITALIA
1 Lobes of tergum IX slightly sclerotized, with 2 setae; cercus index 1.8.................................... guatemala
- Lobes of tergum IX strongly sclerotized, with 4 setae; cercus index 2.1 (Fig. 5).............................. guerrero
PUPAE(extracted and modified from Berlin 1969)
2(1) Seta 9- VII conspicuously longer than 6- VII ................................................................ 3
- Seta 9- VII equal or conspicuously shorter than 6- VII ......................................................... 6
3(2) Seta 5-IV short or moderately long, not extending beyond the middle of tergum VII ................................. 4
- Seta 5-IV long, extending beyond the middle of tergum VII .................................................... 5
4(3) Paddle deeply emarginate at seta 1-Pa................................................................. brevis
- Paddle rounded or produced at seta 1-Pa........................................................... sexlineatus
5(3) Seta 9-VIII with 6 or fewer branches................................................................ spinosus
- Seta 9-VIII with more than 6 branches........................................................... quadrivittatus
6(2) Setae 10–12-CT single................................................................................. 7
- At least one of these setae branched....................................................................... 8
7(6) Seta 8- VII inserted on dorsal surface.................................................................... leei
- Seta 8- VII inserted on ventral surface............................................................. marinkellei
8(6) Seta 8- VII inserted on dorsal surface............................................................... eleanorae
- Seta 8- VII inserted on ventral surface..................................................................... 9
9(8) Setae 6,9- VII short, shorter than 0.5 times the length of seta 4- VII .......................................... osornoi
- Setae 6,9- VII long, more than 0.5 times the length of seta 4- VII ............................................... 10
10(9) Seta 5-IV– V long, extending beyond posterior margin of following tergum................................. allotecnon
- Seta 5-IV– V moderately long, not extending beyond posterior margin of following tergum.......................... 11
11(10) Seta 9-VIII usually with 3 branches (3 or 4); setae 8-,9-CT of equal length................................. guatemala
- Seta 9-VIII usually with 5 branches (4–7); seta 8-CT shorter than 9-CT (Fig. 8).............................. guerrero
LARVAE(numbered couplets from Berlin 1969, updated and modified)
8(7) Seta 1- V, VI with more than 5 branches............................................................. allotecnon
- Seta 1- V, VI with 5 or fewer branches...................................................................... 9
9(8) Saddle with spicules posterior to the insertion of seta 1-X.............................................. guatemala
- Saddle without spicules posterior to the insertion of seta 1-X............................................. guerrero
description: Published as part of Rivera-García, Karina D., Mendez-Andrade, Alejandro, Díaz-Osorio, Alicia C., Ibáñez-Bernal, Sergio & Sandoval-Ruiz, César Antonio, 2023, Description of the pupa, female and male genitalia of Aedes (Howardina) guerrero Berlin and first record of Ae. (How.) guatemala Berlin (Diptera: Culicidae) in Puebla, Mexico, pp. 279-295 in Zootaxa 5360 (2) on pages 291-292, DOI: 10.11646/zootaxa.5360.2.7, http://zenodo.org/record/10151066