Aedes (Howardina) guerrero Berlin 1969
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
Arthropoda
Insecta
Diptera
Culicidae
Aedes
Aedes guerrero

description: Aedes (Howardina) guerrero Berlin, 1969
Type locality: Chilpancingo, Guerrero, Mexico. Additional references: Berlin (1969), Clark-Gil & Darsie (1983).
Female (Figs 2–4). Head: Vertex covered with decumbent scales; with a central stripe of pale yellow scales and 2 lateral stripes of broad dark scales, all begin at ocular line and end at occiput; lateral areas of vertex with broad yellowish scales; posterior area of occiput with narrow dark or golden erect scales (Fig. 3a); antenna about 0.7 length of forefemur; pedicel with a spot of iridescent white scales on inner side; maxillary palpus covered with dark scales, apex with white scales (Fig. 3a); palpus about 0.14 length of proboscis (Fig. 3b); clypeus without scales and setae (Fig. 3a). Thorax: Integument of antepronotum brown, covered with broad white scales and 4 setae; integument of postpronotum brown with broad white scales and narrow yellow scales on upper part (Fig. 3b); integument of scutum dark brown, with 2 dorsocentral stripes (4 in total) of golden-yellow scales extending from anterior margin to scutellum; stripe of broad white scales on antealar area (Fig. 3a); scutellum covered centrally and on each lateral lobe with a group of narrow slightly yellow scales; each lateral lobe with 3,4 strong setae distally; pleura with patches of white scales on proepimeral, proepisternal, subspiracular, postspiracular (in three parts), prealar, upper mesokatepisternal, lower mesokatepisternal, upper mesepimeral, lower mesepimeral and mesomeral areas (Figs 2a, 3b). Wing: Scales dark, narrow. Legs: Forecoxa with a spot of white scales; foretibia with a small spots of white scales at base and apex (Fig. 4a); foretarsomeres 1 and 2 with white basal bands (Fig. 4a); midcoxa with 2 spots of white scales; midfemur with spots of white scales beyond middle and at apex (Fig. 4b); midtibia with a small band of white scales at base (Fig. 4b); midtarsomeres 1 and 2 with white basal bands (Fig. 4b); hindcoxa with a spot of white scales; hindfemur with spots of white scales beyond middle and at apex (Fig. 4c); hindtibia with a small white basal band (Fig. 4c); hindtarsomeres 1 and 2 with broad white basal bands (Fig. 4c). Abdomen (Fig. 2b): Terga covered with dark scales, terga III–V with basal bands of white scales, lateral margins of terga I–V white-scaled; tergum VI with a small inverted triangular patch of white scales; terga VI,VII with lateral margins white-scaled, more conspicuous than on other terga. Sterna not examined. Genitalia (Fig. 5): Tergum VIII (Fig. 5a) with proximal 0.40 retracted into segment VII, forming a nearly triangular shape with a rounded apex; anterior portion covered with pale scales, posterior 0.20–0.30 with dark scales; setae present on distal 0.50, more numerous and robust at apex; VIII-Te index 0.76 (maximum length/maximum width), VIII-Te/IX index 2.68; length 0.39 mm; width 0.51 mm. Sternum VIII (Fig. 5b) nearly quadrangular, wider posteriorly, with a slightly convex and nearly straight caudal margin; scales in mesal area over distal 0.80; setae on distal 0.50, more numerous and stronger near apical margin; setae 1–5-S in mesal area, 1-S near the center; VIII-S index 0.88 (maximum length/maximum width); length 0.47 mm; width 0.52 mm. Tergum IX (Fig. 5c) heart-shaped with small heavily pigmented lobes, interlobular space concave, width as wide as base of each lobe; 4 setae on each lobe; IX-Te index 1.0 (maximum length/maximum width); length 0.14 mm; width 0.14 mm (Fig. 5c, d). Insula (Fig. 5c) with 6 large and many small setae. Upper vaginal lip (Fig. 5c) heavily pigmented, short, with a median thickening. Lower vaginal lip (Fig. 5c) also heavily pigmented, curved in the middle. Postgenital lobe (Fig. 5c, d) with wide apical portion, with a nearly straight apex and 10–12 setae; ventral PGL/Ce index 0.71; dorsal PGL index 1.5; ventral PGL index 0.75; ventral length 0.17 mm; dorsal length 0.08 mm. Cercus (Fig. 5c, d) with rounded apex, dorsal surface with 4 strong and numerous delicate setae on distal 0.4; Ce index 2.1; Ce/dorsal PGL index 2.8; length 0.24 mm, width 1.0 mm.
Male (Figs 6, 7). Similar to female except for antenna (flagellomeres with larger flagellar whorls) and sexual characters. Genitalia (Figs 6, 7): Tergum IX moderately developed, with a slightly convex interlobar space, each lobe rather indistinct, with 3,4 (mode 3) short setae, usually with a thin accessory seta located below the lobe (Figs 6a, 7a). Gonocoxite (Fig. 6a) long and cylindrical, more than 3.5 times its width at level of claspette. Claspette (Fig. 6a) small, inconspicuous but slightly pointed, located near base of gonocoxite, with a long apical seta; basal portion about twice or less length of apical seta. Gonostylus (Fig. 6a, b) about 0.25 times as long as gonocoxite, proximal 0.75 inflated, mainly in middle part, tapering to narrow distal 0.25, with 1 distal seta; claw relatively long, about 0.20–0.25 length of gonostylus. Proctiger (Figs 6a, 7a, b) strongly developed; paraproct (Fig. 7b) simple, large, slender, strongly sclerotized, slightly curved distally with an apical tooth or beak, with 4 small cercal setae. Aedeagus (Fig. 7c) similar in length to proctiger, lateral plates (Figs 6a, 7c) distinctly separated, each appearing as a slightly large and pyriform lobe on either side.
Pupa (Fig. 8). Chaetotaxy in Table 1. Cephalothorax: Slightly tanned. Trumpet: Slightly darker than cephalothorax; length 0.43–0.53 mm (m = 0.47; sd = 0.03; n = 28), width 0.09–0.11 mm (m = 0.09; sd = 0.006; n = 28), trumpet index 4.18–5.44 (m = 4.77; sd = 0.45; n = 28), pinna 0.08–0.13 mm (m = 0.1; sd = 0.016; n = 28), meatus 0.3–0.42 mm (m = 0.36; sd = 0.036; n = 28) (Fig. 8a). Abdomen: Slightly tanned, terga with darker central areas, length 3.0– 3.7 mm (m = 3.26; sd = 0.25; n = 28); nearly all setae single, setae 1-I and 9-VIII fanlike with aciculate dendritic branches. Paddle: Slightly yellow, lighter than abdomen, midrib conspicuous, except at apex, with marginal serration more conspicuous from mid-length to apex; length 0.68–0.78 mm (m = 0.73; sd = 0.027; n = 28), width 0.49–0.58 mm (m = 0.53; sd = 0.032; n = 28), paddle index 1.25–1.47 (m = 1.37; sd = 0.066; n = 28). Genital lobe: Darker than body; length J (Fig. 8b) 0.44–0.5 mm (m = 0.47; sd = 0.025; n = 28), ♀ 0.27–0.3 mm (m = 0.28; sd = 0.013; n = 28).
*Number of terminal branches (forked setae).
? Not observed.
Fourth-instar larva. Antenna: With a few scattered spicules. Abdomen: Segment I glabrous; segments II– VIII with spine-like spicules; seta 1-V,VI with 5 or fewer branches. Abdominal segment VIII: Comb with 12–14 scales in a single row, individual scales long, pointed, finely fringed nearly to apex. Abdominal segment X: Saddle with distinct large caudal marginal spine-like spicules, not extending beyond insertion of seta 1-X. Siphon: Pecten with about 20 spines that extend to mid-length of siphon, ending just before insertion of seta 1-S, spines pointed with a conspicuous basal tooth and finely denticulate margin; seta 1-S usually with 2 or 3 branches; siphon index approximately 3.5.
Bionomics. The immature stages develop in epiphytic bromeliads on Quercus species.
Distribution. Aedes guerrero has been recorded in Guatemala (Santa Bárbara, Clark-Gil & Darsie 1983) and Mexico: Estado de México, Guerrero, Oaxaca, Puebla (Berlin 1969; Díaz-Nájera & Vargas 1973; Heinemann & Belkin 1977b; Viveros-Santos & Sandoval-Ruiz 2018; Adeniran et al. 2021).
Material examined. 13♀, 13J, 24 pupal exuviae, 11 larval exuviae, 14 larvae, MEXICO: Puebla, Amozoc, State Park General Lázaro Cárdenas del Río “Flor del Bosque”, Quercus forest (19° 01′ 12′′ N, 98° 06′ 41′′ W), 2,353 m a.s.l., water accumulated in epiphytic bromeliads on Quercus species, 26 September 2014; 3♀ Pe, 1JPe, Quercus forest (19°01′ 20′′ N, 98° 06′ 46′ W), 2,408 m a.s.l., water accumulated in epiphytic bromeliads on Quercus species, 28 September 2018.
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 281-290, DOI: 10.11646/zootaxa.5360.2.7, http://zenodo.org/record/10151066