Subgenus Jihlienius Reinert, Harbach & Kitching, 2006
Aedes chungi Lien, 1968.
Subfamily Culicinae, tribe Aedini, genus Aedes. Subgenus Jihlienius includes three species. Subgenus abbreviation – Jih.
Subgenus Jihlienius is characterised by the following combinations of characters. Characters that diagnose Jihlienius (as genus) in the phylogenetic analyses of Reinert et al. (2009) are indicated by an asterisk (*).
ADULTS – Vertex, *ocular area an *interocular space with broad decumbent scales, erect forked scales numerous on occiput, few semi-erect scales on vertex; compound eyes more or less contiguous above antennal pedicels; maxillary palpus and proboscis dark-scaled, proboscis longer than forefemur, palpus of males with 5 palpomeres in nearly straight line, shorter than proboscis; scutum with narrow scales except on median prescutellar area and strip between supraalar and prescutellar setae, mainly pale-scaled with variable areas of dark scaling; paratergite with broad scales, *postpronotal scales narrow and broad; upper and lower areas of mesokatepisternum, prealar area and upper to middle areas of mesepimeron with broad pale scales (*upper prealar scales present); lower mesepimeral setae absent; wing dark-scaled with pale spot at base of costa; hindfemur mainly pale-scaled, with basal and preapical dark bands; hindtarsomere 1 with broad basal pale band; fore- and midungues equal in females, each with 1 tooth, unequal in males, larger unguis with 2 teeth, smaller unguis with 1 tooth, hindungues equal and simple in both sexes; abdominal terga dark-scaled with small basolateral pale patches, laterotergite of segment I with pale scales, segment VII laterally compressed in females. FEMALE GENITALIA – Tergum VIII largely covered with broad scales, posterior margin broadly rounded; sternum VIII wider than long, with median caudal emargination, without scales, seta 2-S inserted posterior to 1-S; tergum IX comprised of 2 sclerites; cercus without scales; lower vaginal sclerite absent; insula lip-like, with few setae in lateral patches; 3 spermathecal capsules. MALE GENITALIA – *Ninth tergal setae all slender; gonocoxite without apical and basal lobes on mesal margin of dorsal surface, with small *basomesal patch of stout setae, ventral surface with patch of lanceolate setae on distal area of mesal margin, mesal surface membranous, lateral surface with broad scales; gonostylus attached at apex of gonocoxite, with one apical gonostylar claw; claspette with narrow columnar stem and long striated somewhat flattened apical claspette filament; aedeagus simple, tube-like, *with small distal spicules; proctiger with few cercal setae. LARVAE – Antenna without spicules, *≤ 0.40 length of dorsal apotome; seta 4-C multi-branched, inserted slightly mesal and approximately in line with seta 6-C; seta 5-C single, inserted posterior to setae 4,6,7-C; seta 6-C single, shorter than seta 5-C, inserted anterior and at approximately same level as 5-C, inserted mesal and anterior to seta 7-C; seta 7-C with 3–5 branches, inserted lateral and slightly anterior to seta 5-C; seta 12-C inserted mesal to seta 13-C; seta 13-C single, longer than seta 12-C; seta 14-C single; seta 19-C absent; setae 1–3-P on common setal support plate; seta 4-P single or double, *longer than seta 3-P; seta 5-P normally double; seta 8-P shorter than seta 4-P; *seta 1-M and *seta 4-M single; seta 12-I present; seta 1-S multi-branched, inserted slightly distal to pecten; saddle of segment X incomplete ventrally, *with stout spicules on posterior margin dorsal to insertion of seta 1-X, seta 1-X single or double, inserted on saddle; *seta 2-X branched (normally double); ventral brush (seta 4-X) inserted on grid with both transverse and lateral bars, with 2 precratal setae. PUPAE – Setae 1,3-CT similarly developed; seta 10-CT single; *seta 11-CT branched (double), shorter than 10-CT; seta 3-I,II single, *shorter than seta 6-I,II; seta 6-I longer than seta 7-I, *seta 6-III branched, seta 6-VII inserted slightly posterior and mesal to seta 9-VII; seta 5-II inserted lateral to seta 4-II, seta 5-V single, longer than tergum VI; seta 2-VI inserted mesal to setae 1,3-VI; seta 9-VIII inserted on posterolateral corner of segment, with 3–5 branches; paddle with rounded apical margin, midrib extends to apex, without hair-like marginal spicules; seta 1-Pa single or forked. See genus Aedes.
Subgenus Jihlienius, based on Ae. chungi, was recovered as the sister of subgenus Molpemyia in the phylogenetic studies of Reinert et al. (2006, 2008), but morphological differences not included in the analyses indicate that Ae. chungi is not closely related to Molpemyia. Jihlienius + Molpemyia was sister to subgenus Phagomyia in the 2008 study, and Jihlienius was recovered as the sister of Phagomyia in the studies of Reinert et al. (2009) and and Wilkerson et al. (2015).
The immature stages of Jihlienius species have been found in tree holes and bamboo stumps. Nothing is known about the bionomics of the adults.
Species of subgenus Jihlienius are unlikely to be of medical and economic importance to humans.
China, India, Nepal and Taiwan.
Reinert et al., 2006, 2008, 2009 (as genus, morphology, phylogeny); Reinert, 2009 (as genus, female genitalia); Rattanarithikul et al., 2010 (as genus, Thailand, keys, bionomics); Wilkerson et al., 2015 (phylogeny, classification).
