Chagasia rozeboomi Causey, Deane & Deane, 1944

Harbach, Ralph E. & Howard, Theresa M., 2009, Review of the genus Chagasia (Diptera: Culicidae: Anophelinae), Zootaxa 2210, pp. 1-25 : 17-18

publication ID

https://doi.org/10.5281/zenodo.189830

DOI

https://doi.org/10.5281/zenodo.6222465

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scientific name

Chagasia rozeboomi Causey, Deane & Deane, 1944
status

 

Chagasia rozeboomi Causey, Deane & Deane, 1944 View in CoL

rozeboomi Causey, Deane & Deane, 1944: 3 View in CoL (E*), syntypes E (non-existent): Loando, near Crato, Ceará, Brazil (see Causey et al., 1945: 341; invalid restriction to vicinity of São Benedito by Belkin et al., 1971: 2, 31).

Diagnosis. The adults of Ch. rozeboomi are distinguished from those of other species of Chagasia as follows: front of anterior promontory with white or yellowish scales contiguous with white dorsocentral scales (distinction from Ch. ablusa , Ch. bathana and Ch. bonneae ); acrostichal scales pale anteriorly, dark posteriorly (as in Fig. 3 View FIGURE 3 B) (distinction from Ch. bathana and Ch. bonneae ); without pale scales on mesal margin of supraalar scales; wing entirely dark-scaled (unique); hindtibia without semi-erect clusters of dark scales (as in Fig. 4 View FIGURE 4 B) (distinction from Ch. ablusa , Ch. bathana and Ch. bonneae ); hindtarsomeres 2–5 without postbasal dark band (distinction from Ch. bathana ), basal pale band of hindtarsomere 2 moderately long, 2.50–2.63 length of apical dark band (mean = 2.57), hindtarsomere 5 with apical dark band ( Fig. 5 View FIGURE 5 E) (distinction from Ch. bonneae ). Males have two stout specialised seta on the dorsomesal prominence of the gonocoxite (distinction from Ch. ablusa ) and fine setae on the claspette (distinctions from Ch. bathana and Ch. bonneae ). The development of setae 5-, 7- and 11-C and seta 2-P readily distinguish larvae of Ch. rozeboomi from larvae of the other Chagasia species. These setae are noticeably shorter, seta 5-C is shorter than half the distance between its insertion and the insertion of seta 4-C, seta 2-P has uniquely thickened and truncated secondary branches that arise from the ends of the primary branches and seta 11-C is less than half as long as seta 13-C and the antenna. Pupae have no diagnostic features but they differ from pupae of Ch. bonneae in lacking a ligulate process on the rim of the trumpet.

Etymology. The derivation of the specific name is not mentioned in the publication in which this species was originally described based on eggs ( Causey et al., 1944), but the authors clearly state in a second paper ( Causey et al., 1945) that the species was named in honour of Lloyd E. Rozeboom. The late Prof. Rozeboom was a renowned medical entomologist at Johns Hopkins University School of Hygiene and Public Health in Baltimore, Maryland, USA.

Discussion. The affinity of this species with Ch. ablusa and Ch. fajardi is indicated by the ornamentation of the adults and the structure of male genitalia. It is immediately distinguished from the other species of Chagasia by the reduced cranial setae of the larva.

Distribution. Brazil. The occurrence of Ch. rozeboomi in Bolivia indicated on the map reproduced as figure 8I in Gabaldon & Cova-Garcia (1952) is unsubstantiated.

Material examined. Fourteen specimens: BRAZIL, Bahia, Bomfim (23); Ceará, Crato (2Ƥ, 13, 2Le, 1Pe, 1L), unknown locality (1Ƥ); Minas Gerais, Rio Doce (2Ƥ, 23).

Literature. Causey et al., 1945: 341–349 ( Brazil, 3* Ƥ* E* L* P*); Causey et al., 1946: 25, Fig. 3 View FIGURE 3 ( Brazil, 3*); Deane, L.M. et al., 1946: 9, 16, Figs 58, 60, 63, 63a ( Brazil, Ƥ*); Deane, M.P. et al., 1946a: 40, 44, Figs 18, 20, 23 ( Brazil, L*); Deane, M.P. et al., 1946b: 360, 366, Figs 18, 20, 23 ( Brazil, L*, identification); Deane, L.M. et al., 1948: 831, 832, 931–932, 933, 937, 945, 946, 947, 949, 951, 953 ( Brazil, bionomics); Rachou, 1948: 715–717 ( Brazil, distribution, L identification); Levi-Castillo, 1951: 79 (list); Gabaldon & Cova-Garcia, 1952: 179, 198, 199, Fig. 8I ( Brazil, not Bolivia); Lane, 1953: 140, 143–144 ( Brazil, 3 Ƥ E* L* P); Horsfall, 1955: 41 (distribution, L, bionomics); Senevet, 1958: 9 (catalogue); Stone et al., 1959: 10 (catalogue); Villanueva Rodriguez, 1961: 217, 218 (distribution); Forattini, 1962: 306, 468 (distribution, A,L keys); Forattini et al., 1970: 20 ( Brazil, collection); Belkin et al., 1971: 2 31 (type data); Knight & Stone, 1977: 68 (catalogue); Neves & Pedersoli, 1976: 551 ( Brazil, Ƥ, bionomics); Peyton, 1993 (mention); Guimarães, 1997: 30 (catalogue); Forattini, 2002: 194, 195, 241 (A, L, distribution).

Belkin, J. N., Schick, R. X. & Heinemann, S. J. (1971) Mosquito studies (Diptera, Culicidae) XXV. Mosquitoes originally described from Brazil. Contributions of the American Entomological Institute, 7 (5), 1 - 64.

Causey, O. R., Deane, L. M. & Deane, M. P. (1944) An illustrated key to the eggs of thirty species of Brazilian anophelines, with several new descriptions. American Journal of Hygiene, 39, 1 - 7.

Causey, O. R., Deane, L. M. & Deane, M. P. (1945) Description of Chagasia rozeboomi, an anopheline from Cear, Brazil. Journal of the National Malaria Survey, 4, 341 - 350.

Deane, M. P., Causey, O. R. & Deane, L. M. (1946 a) Studies on Brazilian anophelines from the northeast and Amazon Regions. III. An illustrated key by larval characteristics for the identification of thirty-two species of Anophelini, with descriptions of two larvae. American Journal of Hygiene Monograph Series, 18, 33 - 50 + 8 pls.

Deane, M. P., Causey, O. R. & Deane, L. M. (1946 b) Chave ilustrada para a identificacao de trinta e duas especies de anofelinos das regioes Nordestina e Amazonica do Brasil pelos caracteres da larva, com a descricao de duas larvas. American Journal of Hygiene Monograph Series, 18, 355 - 384.

Deane, L. M., Causey, O. R. & Deane, M. P. (1948) Notas sobre a distribuicao e a biologia dos anofelinos das regioes nordestina e amazoica do Brasil. Revista do Servico Especial de Saude Publica, 1, 827 - 965.

Forattini, O. P. (1962) Entomologia medica. Volume 1. Faculdade de Higiene e Saude Publica, Departamento de Parasitologia, Universidade de Sao Paulo, Sao Paulo. 662 pp.

Forattini, O. P., Rabello, E. X. & das Dores Cotrim, M. (1970) Catalago das colecoes entomologicas da Faculdade de Saude Publica da Universidade de Sao Paulo (1. a Serie) Culicidae [sic]. Revista de Saude Publica, 4 (N. o Especial). 100 pp.

Forattini, O. P. (2002) Culicidologia medica, vol. 2: identificacao, biologia, epidemiologia. Editora da Universidade de Sao Paulo, Sao Paulo. 860 pp.

Gabaldon, A. & Cova-Garcia, P. (1952) Zoogeografia de los Anofelinos en Venezuela IV Su posicion en la region Neotropica y observaciones sobre las especies de esta region. Revista de Sanidad y Asistencia Social, 17, 171 - 209, 12 figs.

Guimaraes, J. H. (1997) Systematics database of Diptera of the Americas south of the United States, family Culicidae. Sociedade Brasileira de Entomologia, Sao Paulo. ix + 286 pp.

Horsfall, W. R. (1955) Mosquitoes: their bionomics and relation to disease. The Ronald Press Co., New York. x + 723 pp.

Knight, K. L. & Stone, A. (1977) A catalog of the mosquitoes of the world (Diptera: Culicidae). Second edition. Volume VI. The Thomas Say Foundation, Entomological Society of America. ix + 611 pp.

Lane, J. (1953) Neotropical Culicidae. Volume I. University of Sao Paulo, Sao Paulo. 548 pp.

Levi-Castillo, R. (1951) Estudio taxonomico sobre los anofelinos de America del sud. Rivista di Malariologia, 30, 75 - 80.

Neves, D. P. & Pedersoli, J. L. (1976) Os Culicidae do Museu de Historia Natural da Universidade Federal de Minas Gerais, Belo Horizonte. I. A mata d especies encontradas. Revista Brasileira de Biologia, 36, 547 - 553.

Peyton, E. L. (1993) Anopheles (Nyssorhynchus) dunhami, resurrected from synonymy with Anopheles nuneztovari and validated as a senior synonym of Anopheles trinkae (Diptera: Culicidae). Mosquito Systematics, 25, 151 - 156.

Rachou, R. G. (1948) Encontro da Chagasia rozeboomi Causey, Deane e Deane, 1944, no Estado de Sao Paulo. Revista Brasileira de Malariologia e Doencas Tropicais, 1, 715 - 718.

Senevet, G. (1958) Les Anopheles du globe. Revision generale. Encyclopedie Entomologique, Serie A, 36, 1 - 215.

Stone, A., Knight, K. L. & Starcke, H. (1959) A synoptic catalog of the mosquitoes of the world (Diptera, Culicidae). Volume VI. The Thomas Say Foundation, Entomological Society of America, College Park, Maryland. 358 pp.

Villanueva Rodriguez, C. (1961) Distribucion geografica de Chagasia bathanus (Dyar, 1928) y algunos aspectos bionomicos de la larva. Revista Brasileira Entomologia, 10, 217 - 226.

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FIGURE 3. Scutum (dorsal view) of (A) Chagasia bonneae and (B) Ch. fajardi. The acrostichal scales (red arrows) are entirely pale in Ch. bonneae and dark posteriorly in Ch. fajardi (some scales have been lost in specimen shown); pale para-supraalar scales (yellow arrows), absent in the former species, are often present in the latter species. Note that the dorsocentral scales on the anterior promontory are distinctly yellow in Ch. bonneae but more or less unicolorous with the other dorsocentral scales in Ch. fajardi.

Gallery Image

FIGURE 4. Hindtibia (anterior view) of (A) Chagasia ablusa and (B) Ch. fajardi showing the presence and absence of semi-erect clusters of dark scales, respectively.

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FIGURE 5. Hindtarsus (anterior view) of (A) Chagasia bathana, (B) Ch. bonneae, (C) Ch. fajardi, (D) Ch. ablusa and (E) Ch. rozeboomi.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Culicidae

SubFamily

Anophelinae

Genus

Chagasia