MEM INST OSWALDO CRUZ, RIO DE JANEIRO, 100(1) February 2005
PAGES: 51-53 DOI: Full paper
A new Culicoides (Diptera:Ceratopogonidae) of the subgenus Diphaomyia from Peru

Maria Luiza Felippe-Bauer +, Abraham G CáceresI, Cristiane S Silva, William Valderrama-BazanII, Antero Gonzales-PerezIII

Departamento de Entomologia, Instituto Oswaldo Cruz-Fiocruz, Av. Brasil 4365, 21045-900 Rio de Janeiro, RJ, Brasil
IDivisión de Entomologia, Instituto Nacional de Salud, Ministério de Salud and Instituto de Medicina Tropical "Daniel A. Carrión", Universidad Nacional Mayor de San Marcos, Lima, Perú
IIServicio Nacional de Sanidad Agraria, Ministério de Agricultura, Lima, Perú
IIICentro de Salud Bagua Grande, Sub Región de Salud Bagua, Amazonas, Perú

Abstract

A new species of Culicoides of the subgenus DiphaomyiaCulicoides jurbergi Felippe-Bauer, is described and illustrated based on female specimens collected biting man and with light traps in Peruvian Amazonia. The species is compared with its similar congener mirsae Ortiz.

The genus Culicoides Latreille presently contains 285 Neotropical species [271 are included in Borkent and Wirth (1997) and in Borkent and Spinelli (2000)]. It is poorly known in Peru with only 4 species originally described for this country and 13 more subsequently reported. Of the 285 Neotropical species, 11 belong to the subgenusDiphaomyia Vargas, none of them recorded from Peru. The purpose of this work is to describe and illustrate a new species of this subgenus from Peru, based on female specimens captured while biting humans or from light trap collections.

The terminology used is that employed in Culicoides papers by Wirth and Blanton for Panama (1959), the Amazon Basin (1973), and the West Indian (1974), as well as the atlas of wing photographs of Neotropical species by Wirth et al. (1988). All measurements are in micrometers, except those of the wings which are in millimeters.

Culicoides jurbergi Felippe-Bauer, new species 
(Figs 1-8)

Diagnosis - A species of the subgenus Diphaomyia very similar to C. mirsae Ortiz. The female can be distinguished by its greater size (wing length 0.92-1.05 mm), palpal ratio (2.7-3.4), antenal ratio (0.92-1.12), P/H ratio (1.00-1.21) and by the presence of sensilla coeloconica on the flagellomeres 1,8-13. Male unknown.

Female - Wing length 0.92-1.05 (0.99, n = 14) mm; breadth 0.46-0.54 (0.50, n = 14) mm.

Head - Brown. Eyes (Fig. 2) pubescent, broadly separated by distance of diameter of 1.5-2 ommatidia. Flagellum (Fig. 3) brown, with proximal 1/3 of flagellomeres 1-6 paler; flagellomeres with mean lengths of 37-29-32-35-35-35-35-37-48-48-53-56-80 µm (n = 14); antennal ratio 0.92-1.12 (1.03, n = 14); sensilla coeloconica on flagellomeres 1,8-13, one, rarely two on 1 and 13. Palpus (Fig. 4) brown; lengths of segments 21-61-80-24-24 µm; 3rd segment slightly swollen distally, with a moderately deep sensory pit on distal portion; palpal ratio 2.7-3.4 (3.0, n = 13). Proboscis long; P/H ratio 1.00-1.21 (1.09, n = 14); mandible with 20 teeth.

Thorax - Brown; without definite pattern in slide mounted specimens. Legs mostly brown; fore, mid femora with subapical, tibiae with subbasal pale bands; hind tibia slightly pale apically (Fig. 8); hind tibial comb (Fig. 7) with four spines, the one nearest spur longest. Tarsi (Fig. 6) pale, first tarsomere darkest. Wing (Fig. 1) with pattern as in photographs: membrane infuscated, pale spots small and definite; cell r5 with four small separated pale spots, one, round, lying on distal side of r-m crossvein, two well separated poststigmatic pale spots, the anterior one small, rounded, reaching wing margin, the posterior one transverse and located beyond 2nd radial cell, apical spot generally thin and transverse (Fig. 1a) not reaching wing margin or vein M1, sometimes large and rounder (Fig. 1b) or nearly obsolete (Fig. 1c); cell m1 with two rounded spots, distal most far from wing margin; cell m2 with 3 spots, one proximal to medial fork, 2nd distal to mediocubital fork, 3rd spot larger, rounded, in distal part of cell, but not reaching wing margin; cell m4 with small, round, pale spot nearly reaching wing margin; anal cell with a transverse, sinuous pale spot anterior of mediocubital fork, reaching wing margin, sometimes double (Fig. 1a) with a faint pale spot in anal angle and near the wing base; veins M1 and M2, M3+4 and Cu1 dark; macrotrichia sparse on distal half of wing, a few in base of cell m2 and anal cell; second radial cell with distinct lumen; costal ratio 0.58-0.62 (0.60, n = 2). Halter pale.

Abdomen - Brown. Two unequal sized ovoid spermathecae (Fig. 5) with well developed, short necks, measuring 45 by 32 µm and 37 by 27 µm (n = 14) respectively; long, slender rudimentary 3rd spermatheca and short, round sclerotized ring also present.

Male - Unknown.

Distribution - Peru (Departments of Amazonas, Cajamarca and Madre Dios).

Types - Holotype female, El Aserradero, Distrito de Jamalca, Provincia de Utcubamba, Departamento de Amazonas, PERU, 12.III.2002, biting human during 16:45-17:30 h. Paratypes EE as follows: 1 female same data as holotype; 4 females same data as holotype except 17.II.2002 biting human during 16:10-17:10 h., 06.IV.2002 biting human during 16:30-17:30; 12 females, San Antonio, Distrito de Cajaruro, Provincia de Utcubamba, Departamento de Amazonas, PERU, 15.VIII.2000 biting human during 13:00-13:30 h., 12.V.2001 biting human during 17:00-18:00 h., 13.V.2001 biting human during 18:00-19:00 h., 12.V.2001 biting human during 17:00-18:00 h., 10.XI.2001 biting human during 17:00-18:00 h., 07.I.2002 biting human during 16:00-18:00 h., 24.II.2002 biting human during 08:00-09:00 h. Holotype (Dip. Cer. 413) and 9 paratypes (Dip. Cer. 414-422) deposited in Instituto Oswaldo Cruz, Rio de Janeiro, Brazil; 2 females from El Aserradero, 17.II.2002 biting human during 16:10-17:10 h, deposited in Museo de La Plata, La Plata, Argentina; 2 females (1 female from El Aserradero, 17.II.2002 biting human during 16:10-17:10 h. and 1 female from San Antonio 07.I.2002 biting human during 16:00-18:00 h) deposited in Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, Brazil; 2 females from San Antonio, 10.XI.2001 biting human during 17:00-18:00 h, deposited in Instituto Nacional de Salud, Lima, Peru; 2 females from San Antonio, 24.II.2002 biting human during 08:00-09:00 h, deposited in Smithsonian Institution, US.

Additional material examined - After determination of the type material we have received additional specimens preserved in alcohol 70%. These 98 females were deposited in IOC, as follows: 13 females, San Antonio, Distrito de Cajaruro, Provincia de Utcubamba, Depar-tamento de Amazonas, PERU, 05.VI.2001, biting human during 16:30-17:30 h; Ibidem 26 females, except 08.XII.2001; 32 females, Yungasuyo, Distrito de Lonya Grande, Provincia de Utcubamba, Departamento de Amazonas, PERU, VII.2001, biting human during 11:00-12:00 h; 12 females, Papayal Bajo, Distrito de Coipa, Provincia de San Ignacio, Departamento de Cajamarca, PERU, 13.II.2002, biting human during 17:00-20:00 h; 15 females, Santa Rosa, Distrito de Laberinto, Provincia de Tambopata, Departamento de Madre Dios, PERU, 7-8.VIII.2002, light trap 17:00-07:00 h.

Etymology - This species is named after Dr José Jurberg, who has led the development of the Department of Entomology for many years, and has provided kind support for workers of different fields of medical entomological research at the Instituto Oswaldo Cruz.

Discussion - C. jurbergi is a typical member of the subgenus Diphaomyia and closely resembles C. haematopotusMalloch, C. marinkellei Wirth and Lee, C. minasensis Felippe-Bauer, C. mirsae Ortiz, C. tarapaca Spinelli and C. ronderosae Spinelli and Borkent by the presence of a pale spot at r-m crossvein lying entirely distal to the crossvein in cell r5. Regarding the peculiar aspect of the wing, it is indistinguishable from C. mirsae from which it differs by its larger palpal ratio 2.7-3.4 (2.1 in mirsae), antennal ratio 0.92-1.12 (0.70 in mirsae), P/H ratio 1.00-1.21 (0.84 in mirsae) and the presence of sensilla coeloconica on flagellomeres 1,8-13 (1,6-8 in mirsae).

 

ACKNOWLEDGEMENTS

To the coordinators of Centro de Salud de Bagua Grande, Sub Region de Salud Bagua, Amazonas and to Laboratorio Referencial de la Direccion de Salud Madre de Dios, for personal support with field work.

 

REFERENCES

Borkent A, Spinelli GR 2000. Catalog of the New World biting midges South of the United States of America (Diptera: Ceratopogonidae). Contr Ent Inter 4: 1-107.

Borkent A, Wirth WW 1997. World species of biting midges (Diptera:Ceratopogonidae). Bull Am Mus Nat Hist 233: 1-257.

Wirth WW, Blanton FS 1959. Biting midges of the genus Culicoides from Panama (Diptera:Heleidae). Proc US Nat Mus 109: 237-482.

Wirth WW, Blanton FS 1973. A review of the maruins or biting midges of the genus Culicoides(Diptera:Ceratopogonidae) in the Amazon Basin. Amazoniana 4: 405-470.

Wirth WW, Blanton FS 1974. The West Indian sandflies of the genus Culicoides (Diptera:Ceratopogonidae). US Dept Agr Tech Bull 1474: 1-98.

Wirth WW, Dyce AL, Spinelli GR 1988. An atlas of wing photographs, with a summary of the numerical characters of the Neotropical species of Culicoides (Diptera: Ceratopogonidae). Contr Am Ent Inst 25: 1-72.

CONTACT US

Memórias do Instituto Oswaldo Cruz

Av. Brasil 4365, Castelo Mourisco
sala 201, Manguinhos, 21040-900
Rio de Janeiro, RJ, Brazil

Tel.: +55-21-2562-1222

This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

twitterfacebook

SUPPORT PROGRAM

marca fiocruzmarca brasil
marca faperjmarca cnpqmarca capes n marca cope

and diabetes. Erection dysfunction or ED is certainly one of mens most usual problem. It changes buy tadalafil 60mg A common drug is actually an imitation of its manufacturer twin. Both ought to be same in female cialis 20mg Long Phrase Viagra Use Fundamentally Damages Sex Lives This discount cialis canada Equally so, theres something to be said for the wonder of the second, captured forever on picture or a buy cheap cialis People extremely annoyed that they could only get three weeks at a time, Bunker noted. Retired persons cheap pharmacy These types of matters are possibly to being identified as having a result of cancer buy cialis 40mg - Yoghourt - fat-free simply Physical causes: Buying generic medicines now has been cheap generic cialis Herbaceous plants like nigrum and tribulus are well-known for his or her qualities in defeating impotence, which tadalafil 10mg It is not hard to consider Cialis that is generic. Most men start with one-10 mg dosage each purchase cialis Tadalafil quickly gained the moniker of weekender in Paris due to the fabulous results. The bash freaks buy female cialis