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Wyeomyia (Nunezia) Paucartamboensis, a New Species of Sabethini (Diptera: Culicidae) from the Peruvian Andes with a Diagnosis of the Subgenus Nunezia

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Wyeomyia (Nunezia) Paucartamboensis, a New Species of Sabethini (Diptera: Culicidae) from the Peruvian Andes with a Diagnosis of the Subgenus Nunezia PROC. ENTOMOL. SOC. WASH. 116(3), 2014, pp. 311–338 WYEOMYIA (NUNEZIA) PAUCARTAMBOENSIS, A NEW SPECIES OF SABETHINI (DIPTERA: CULICIDAE) FROM THE PERUVIAN ANDES WITH A DIAGNOSIS OF THE SUBGENUS NUNEZIA CHARLES H. PORTER Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA 30333, U.S.A. e-mail: [email protected] urn/lsid/zoobank.org/author/B044ABF8-5E1E-4BDD-86F9-3CE9ED0591FF Abstract.—Wyeomyia (Nunezia) paucartamboensis Porter, new species is described from specimens reared from tank bromeliads growing in humid premontane forest on the eastern slopes of the Peruvian Andes. The description, with relevant illustrations and images, is of the adult male and female, as well as of the pupal and fourth-instar larval stages. In addition, a diagnosis of the subgenus Nunezia is presented with emphasis on differentiation from other subgenera of Wyeomyia. Key Words: mosquito, Neotropical, taxonomy, bromeliads DOI: 10.4289/0013-8797.116.3.311 urn/lsid/zoobank.org/pub/BC7B0DF0-0958-4872-B44A-A9E3AB3C4498 The subgenus Nunezia Dyar, 1928 of exists (Belkin et al. 1968). The original the genus Wyeomyia Theobald, 1901 was description of Wy. bicornis was based on established for Dendromyia (Eunicemyia) a male and a larva, without illustration, bicornis Root 1928 (In Dyar 1928). from Ocumare de la Costa, Aragua, Subsequently, Nunezia was placed in Venezuela (Belkin et al. 1968). Lane synonymy by Edwards (1932) under the and Cerqueira (1942) added a descrip- subgenus Wyeomyia.However,Laneand tion of the female and also the locality Cerqueira (1942) resurrected Nunezia as of Moyobamba, Peru. Incomplete de- a valid subgenus of the genus Wyeomyia scriptions of the male genitalia and and at the same time included a second fourth-instar larva of Wy. bicornis were species, Wy. lateralis Petrocchi, 1927 (In presented by Lane (1953) and Navarro Shannon and Del Ponte 1927). Wyeomyia and Liria (2007); the latter authors also trujilloi Pulido and Sutil, 1981 was syn- illustrated the pupa. onymized with Wy. bicornis by Navarro Based on described, as well as several and Liria (2007). Wyeomyia lateralis was undescribed species, the subgenus Nune- described on the basis of 3 females from zia may be characterized as one associated Zapla in the Argentine province of Jujuy. primarily with moderate to relatively Neither the male nor the immature stages high altitudes (to at least 2,700 m) in of Wy. lateralis have been described, South America, although one unde- and the type female apparently no longer scribed species occurs in the lowlands of 312 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON the Colombian Choco. The larval stages found in Porter 2009. In addition, for the of all known species develop in brome- pupal stage, length of the male and female liads and females are aggressively an- genital lobes is measured from the distal thropophilic. margin (viewed ventrally) of sternum IX. The new species described here is Abbreviations used in the descriptions in- from the eastern foothills of the Peruvian clude tergum VIII width (TW), tergum Andes at elevations ranging from 1,098– VIII length (TL), sternum VIII width 1,426 m. This species was encountered (SW), and sternum VIII length (SL). during a survey of mosquitoes along an In the material examined section, in- elevation gradient undertaken primarily dividual samples and individual specimens in Paucartambo Province of the Cusco associated with each sample are presented Region, with emphasis on species asso- as follows using PE08232–09 as an ex- ciated with phytotelmata. ample: PE, Peru; 08, Regio´n Cusco; 232, sample number; –09, specimen number. MATERIAL AND METHODS Also, “same as preceding” indicates col- Descriptions are based on specimens lection data is the same as the previous collected as larvae or pupae from brome- sample except as described, often the only liads, many of which were subsequently distinction being a different sample. Life reared to adults. With exception of certain stages are represented by the following observations pertaining to adults, i.e., symbols and abbreviations: ♂,male;♀, color and distribution of scales and certain female; L, fourth-instar larva; Le, fourth- setae, the descriptions are based on spec- instar larval exuviae; P, pupa; Pe, pupal imens mounted in Euparal on microscope exuviae. The letter G designates genitalia slides following, with modifications, pro- andisusedincombinationwiththesex cedures described by Pecor and Gaffigan symbols. (1997). Microscope slide-mounted speci- The holotype is deposited in the Museo mens were examined using bright field de Historia Natural, Universidad Nacio- and phase contrast microscopy, and pinned nal Mayor de San Marcos, Lima, Peru. (pointed) adults were observed under Paratypes are deposited in the National simulated natural light. SEM images were Museum of Natural History (USNM), created using a FEI Environmental Scan- Smithsonian Institution, Washington, D.C., ning Electron Microscope, model XL30. USA. The terminology of Harbach and Knight RESULTS AND DISCUSSION (1980) and Harbach and Kitching (1998) is Wyeomyia (Nunezia) followed with regard to morphological paucartamboensis Porter, new species characters and the numbering system for chaetotaxy. Measurements and numbers (Figs. 1–5) are from at least 10 specimens (20 setae); any exceptions are noted. The number of urn/lsid/zoobank.org/act/5F29A629- branches possessed by most setae is read- 8B89-4F7D-9568-B84644A7ABE9 ily apparent; although due to their size or Description.—Male. Head: A prom- position, a few setae, such as abdominal inent strip of broad, bright white scales setae 11, may be difficult to evaluate. The extends along edge of compound eyes lengths of setae are often given, but they from dorsal surface of vertex to post- should be considered as estimates and are gena, interrupted by small cluster of primarily for general comparisons. Clari- darker scales subdorsally. Darker scales fication of certain measurements may be with blue to greenish-yellow iridescence VOLUME 116, NUMBER 3 313 Fig. 1. Male genitalia (A–E), tergum VIII (F) and sternum VIII (G) of Wyeomyia paucartamboensis. Aspects as indicated: A, Gonocoxite and gonostylus; B, Aedeagus with parameres and basal pieces attached; C, Sternum IX; D, Proctiger; E, Tergum IX. 314 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON Figs. 2. Wyeomyia paucartamboensis male: SEM of head of gonostylus. A, mesal view. B, lateral view. Lobe A, tergal lobe; a1–a5, specialized setae on sternal edge of lobe A. Lobe M, lateral lobe. Lobe E, arises between lobes A and M. Mtp1, lobe M tergal process 1. Mtp2, lobe M tergal process 2. VOLUME 116, NUMBER 3 315 Fig. 3. A, B; Pupa of Wyeomyia paucartamboensis: A, left side of cephalothorax, dorsal to right; B, dorsal (left) and ventral (right) aspects of metathorax and abdomen. C–F. Female genitalia, aspects as indicated: C, postgenital lobe and cerci; D, cerci with post genital lobe; E, Insula; F, Tergum IX. 316 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON Fig. 4. Fourth-instar larva of Wyeomyia paucartamboensis. A, Thorax and abdominal segments I–VI, dorsal and ventral aspects of left side; B, Head, dorsal and ventral aspects of left side; C, Abdominal segments VII–X, left side. C=cranium, CS=comb scale, Dm=dorsomentum, M=mesothorax, P=prothorax, T=metathorax, I–VIII,X=abdominal segments, 1–15=setal numbers for specified areas. VOLUME 116, NUMBER 3 317 Fig. 5. Maxilla (A,B) and mandible (C,D) of fourth-instar larva and sternum VIII (E) and tergum VIII (F) of the female of Wyeomyia paucartamboensis, aspects as indicated. LR , laciniarastrum 1; MnB, man- dibular brush; MLS1, mandibular lobe spicules 1; MLS2, mandibular lobe spicules 2; MLS4, mandibular lobe spicules 4; MnR, mandibular rake; MRB, mandibular rake blade; 2-Mn, mandibular seta 2; MnS1,mandibular sweeper 1; MnS2, mandibular sweeper 2; MxBo, maxillary body; MxB, maxillary brush; MPlp, maxillary palpus. 318 PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON are limited primarily to posterior surface cluster of 3–7 scales; length of selected of occiput; single, transverse row of dark flagellomeres (Flm) derived from 7 erect scales on occiput (sensu Harbach specimens (14 antennae) as follows: and Kitching 1998). Ocular setae dark, Flm5 0.08–0.09 mm, Flm6 0.08–0.09 sparse, close to margin of eye; 2 long, mm, Flm11 0.09 mm, Flm12 0.12 mm, dark approximated interocular setae Flm13 0.15–0.17 mm; mean Flm13:Flm5 present. Interocular space without setae, 1.87. Distal two flagellomeres not dis- narrows to width equal to or slightly less proportionately longer than preceding than that of single corneal facet. Frontal flagellomeres. pit below postfrontal sutures. Clypeus Thorax: Integument dark brown. Scu- and frons without setae and scales. Frons tum with rather broad scales with copper with dense covering of fine aculeae be- and blue iridescence, silvery white scales tween postfrontal suture and antennal extend along lateral margins from scutal socket. Surface of clypeus finely rugose angle to near scutellum, a few white resembling that of pedicel, both with scales sometimes near anteromedial shiny greyish pubescence. Maxillary margin of prescutellar area, anterior palpus (MPlp) short (length 0.19–0.24 promontory with a few white scales and mm, mean 0.21, n = 14) with dark, rather 5–6 strong dark setae, also 1 or 2 small large spatulate scales except ventrally; 2 pale setae may be present; arcrostichal palpomeres, proximal palpomere small, and
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