Culex nicaroensis Duret, 1967.
Subfamily Culicinae, genus Culex. Subgenus Nicaromyia is monobasic. See Culex classification, Subgenus Nicaromyia). Subgenus abbreviation – Nic.
ADULTS – Medium-sized dark mosquitoes; maxillary palpus of females short, about 3 times length of clypeus, palpus of males as long as proboscis; proboscis slightly longer than forefemur; acrostichal setae, supraalar setae and antealar setae absent; antepronotum without scales; row of 5–7 scales beside lower mesokatepisternal setae; wing and legs (except lower surface of femora) dark-scaled; abdominal terga dark-scaled with basolateral pale patches. MALE GENITALIA – Tergum IX lobes produced, closely approximated, setose caudally; gonocoxite short, stout, with scales; subapical lobe subapical in position, divided, proximal division with 2 rod-like setae inserted apically on long curved cylindrical stem, distal division short and stout, bearing 6 setae in 2 groups and another distally compressed and slightly bent seta between them, proximal group comprised of 3 more or less rod-like setae of different lengths, proximal group with pair of identical long distally curved rod-like setae and a fine slender setae laterally at their base; gonostylus uniquely developed, about 0.67 length of gonocoxite, enlarged in distal half, with dorsal undulated crest proximal to prominent horn-like process, lateral surface with a membranous flap-like expansion, apex with abruptly upturned narrow snout with gonostylar claw projecting at its base; phallosome not columnar; lateral plate of aedeagus with a prominent basal hook, a caudally directed apical process and a sternal spine; apex of paraproct with crown of 10–15 curved teeth generally in 2 rows. LARVAE – Seta 1-C short, stout, with blunt tip; seta 2-C absent; seta 12-C inserted well posterior of level of seta 15-C; seta 13-C inserted nearly at level of seta 11-C, well separated from seta 12-C; seta 14-C removed from margin of head capsule, inserted nearly at level of seta 15-C; setae 1,2-P single; seta 3-P branched, much shorter than setae 1,2-P; seta 4-T well developed, about as large as setae 2,3-T; seta 7-II dissimilar to seta 7-I, developed like seta 7-III–VII; comb scales numerous, in patch; siphon long, evenly tapered; pecten of long slender spines bearing ventral fringe of numerous minute spicules; seta 1-S comprised of 4 posterolateral elements beyond pecten and 1 anterolateral element inserted near level of proximal end of spiracular apodeme; saddle complete, seta 1-X shorter than saddle; seta 2-X branched, shorter than seta 3-X; seta 3-X single; ventral brush (seta 4-X) comprised of 6 pairs of setae inserted on grid. PUPAE – Trumpet long, relatively slender, without meatal cleft; seta 1-I,III–VII not strongly developed; seta 1-VI,VII inserted mesad of seta 2; seta 7-I as long as seta 6-I; seta 5-IV–VI equally long, longer than tergum (seta 3-IV–VI incorrectly labelled as 5-IV–VI, and reverse, in González Broche & Rodríguez R., 2001); seta 9-VIII with 2 or 3 branches, shorter than tergum, inserted at caudolateral corner of segment; paddle pointed not rounded apically, without marginal spicules; seta 1-Pa and seta 2-Pa present. See genus Culex.
The affinities of Nicaromyia are unknown. The male genitalia share similarities with members of the Melanoconion Group of subgenera. The immature stages of Nicaromyia and Tinolestes are similar, and those of both inhabit crab holes. Seta 1-C and the pecten spines of larvae are developed like their homologues in members of the Sitiens Group of subgenus Culex. Nicaromyia was recovered in a basal relationship to species of subgenera Anoedioporpa, Aedinus, Belkinomyia, Melanoconion and Tinolestes in the parsimony analyses of Harbach et al. (2012) based on morphological data.
The immature stages and resting adults are found in crab holes in coastal areas with mangrove.
The single species of subgenus Nicaromyia is not a medically important species.
nicaroensis Duret, 1967