An illustrated key to adult males of neotropical Fannia Robineau-Desvoidy belonging to pusio sub-group (Diptera, Fanniidae)

The 11 neotropical species of Fannia belonging to the pusio sub-group (canicularis group), are keyed -F. dodgei Seago; F. femoralis (Stein); F. pamplonae Couri & Araújo; F. parafemoralis Araújo & Couri;F. paraisensis Araújo & Couri; F. punctivervis Malloch; F. pusio (Wiedemann); F. sabroskyi Seago;F. snyderi Seago; F. trimaculata (Stein); F. trimaculatoides Couri & Pamplona. The key is addressed only to the males and the illustrations help in the visualization of the characters.

Fanniidae; Fannia; key to males; pusio sub-group; identification

Authorship

M. S. Couri

Universidade Federal do Rio de Janeiro, Departamento de Entomologia , Rio de Janeiro, Rio de Janeiro, BrazilUniversidade Federal do Rio de JaneiroBrazilRio de Janeiro, Rio de Janeiro, BrazilUniversidade Federal do Rio de Janeiro, Departamento de Entomologia , Rio de Janeiro, Rio de Janeiro, Brazil

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (15)

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2. Hind tibia with long and fine bristles on middle third (Fig. 3) [Mexico, Guatemala, Panama, El Salvador, St. Vicent Is., Guadalupe Is., Puerto Rico, Cuba, Bahamas, Trinidad, Venezuela, Guyana, Brazil, Chile, Galapagos Is., Easter Is., North America, Africa] F. pusio (Wiedemann, 1830) Hind tibia without long and fine bristles on middle third .............................3

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3. Hind femur on anteroventral surface with a row of close bristles on basal third, beginning post-basally (Fig. 4) and posteroventral surface with a complete row of bristles, longer on apical fourth (Fig. 5) [Panama, Cuba, Colombia, Brazil] ............F. dodgei Seago, 1954 Hind femur on anteroventral surface without a row of close bristles on basal third; posteroventral surface without a complete row of bristles, longer on apical fourth; if so, not together with the other above character .....................................4

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4. Hind femur with a very visible pre-apical protuberance, with many short bristles; anteroventral and posteroventral surfaces bare (Fig. 6) [Brazil, USA] ..................F. snyderi Seago, 1954 Hind femur with a faint pre-apical protuberance, and not very bristled; anteroventral and posteroventral surfaces with bristles, at least on apical half (Fig. 7) ......................................................................5

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5. Hind femur on anteroventral surface with 3-4 pre-apical bristles with straight apex distinctly shorter than the corresponding posteroventral (Fig. 7) [Guyana, Brazil] ............F. sabroskyi Seago, 1954 Hind femur on anteroventral surface with preapical bristles with hooked apex (Fig. 8) ...................................................................6

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6. Hind femur on anteroventral and/or posteroventral surfaces with a complete row of bristles (Fig. 8) [Brazil (Rio de Janeiro)] ...F. paraisensis Araújo & Couri, 1996 Hind femur on anteroventral and/or posteroventral surfaces with a bristles at most restricted to apical third...........................................................7 7. Hind femur on anteroventral surface with a row of long bristles on apical third and with more than 4 longer bristles inserted on the swelling; hind tibia on anterodorsal surface with a row of short bristles, the ones on apical third longer (Fig. 9) [Brazil (Rio de Janeiro)] ................. F. parafemoralis Araújo & Couri, 1996 Hind femur on anteroventral surface without a row of long bristles on apical third and with 3-4 longer bristles inserted on the swelling; hind tibia on anterodorsal surface with 3 median bristles (Fig. 10) [Mexico, Cuba, Virgin Is., Puerto Rico, Haiti, Dominican Republic, Guyana, Peru, Bolivia, Brazil, Argentina, North America] ..........................F. femoralis (Stein, 1998)

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8. Hind femur on anteroventral surface with only one strong bristle on apical third; anteroventral surface with a row of straight bristles on middle third (Fig. 11) [Belize, Panama, Puerto Rico, Jamaica, Dominican Republic, Haiti, S. Domingo, Ecuador, Peru, Venezuela, Brazil, Uruguay, Argentina] .....................F. trimaculata (Stein, 1898) Hind femur on anteroventral surface with more than one bristle on apical third; anteroventral surface without a row of straight bristles on middle third (Fig. 12) ..................................................................9

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9. Hind femur on anteroventral surface with 2 bristles on apical third (Fig. 12) [Chile, Juan Fernandez Is.] ............................F. punctiventris Malloch, 1934 Hind femur on anteroventral surface with many bristles on apical third .......10 10. Hind femur on anteroventral surface with a row of similar bristles on basal two-thirds; apical third with long spaced bristles, longer to apex (Fig. 13); mid femur on anteroventral and posteroventral surfaces with short and strong bristles on apical third (Fig. 14) [Brazil (Amazonas)]..........F. trimaculatoides Couri & Pamplona, 1990 Hind femur on posteroventral surface with many bristles on basal third not clustered (Fig. 15); mid femur on anteroventral and posteroventral surfaces without short and strong bristles on apical third [Brazil (Rio de Janeiro)] .....F. pamplonae Couri & Araújo, 1989

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Instituto Internacional de Ecologia R. Bento Carlos, 750, 13560-660 São Carlos SP - Brasil, Tel. e Fax: (55 16) 3362-5400 - São Carlos - SP - Brazil
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An illustrated key to adult males of neotropical Fannia Robineau-Desvoidy belonging to pusio sub-group (Diptera, Fanniidae)

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