. Brigham Young University science bulletin. Biology -- Periodicals. BlUOHAM YoUNC. UNrVERSITY SCIENCE BULLETIN. (Mj^^ + Cu,) lA (2A M +Cu, (Cu.) (Cu,+ 2A) Fig. 5. Wing. Trichohius sparsus Kessel. Adapted from (obling (1938). See abbreviations in text. Pupipara and a,s a "Hippoboscidae ; In .so doing, he reduced the Streblidae and Nycteribiidae to tribal rank within a subfamih' Nvcteribiidae and the Hip- to .subfamily rank, all within a single family Hippoboscidae. Prefacing this treatment, and essentialh' quoting Hennig (1971:227), he stated tha
. Brigham Young University science bulletin. Biology -- Periodicals. BlUOHAM YoUNC. UNrVERSITY SCIENCE BULLETIN. (Mj^^ + Cu,) lA (2A M +Cu, (Cu.) (Cu,+ 2A) Fig. 5. Wing. Trichohius sparsus Kessel. Adapted from (obling (1938). See abbreviations in text. Pupipara and a,s a "Hippoboscidae ; In .so doing, he reduced the Streblidae and Nycteribiidae to tribal rank within a subfamih' Nvcteribiidae and the Hip- to .subfamily rank, all within a single family Hippoboscidae. Prefacing this treatment, and essentialh' quoting Hennig (1971:227), he stated that "the monophyh- of the Glossinidae and Hippoboscidae, (or Pupipara) now seems established beyond all reasonable ; Schlein (1971:.369-371), on the other hand, though he agreed that the Glossinidae and Hip- poboscidae are related and bcloiio; to the Cahp- tratae, suggested that the position of the Stre- blidae and Nycteribiidae should be restudied. In his opinion there is no evidence that the "conspicuous club-shaped projection on the axil- laiY sclerite" [which Jobling (1951) interpreted as calvpteron] "is homologous with the mem- branous calvpteron of the ; He pointed out, too, that the slit on the second seg- ment of the antenna, regarded as "one of the main characters which defines the Calyptiatae," exists also in several families of Acalypterata. In addition he noted distinctive differences in the thoracic moi-phology between batflies and Hippoboscidae and Glossinidae. He suggested further that similarity in genitalia between Hip- poboscidae and Streblidae may be. due to con- vergence, such as Hennig (1941) postulated between Braulidae and Nycteribiidae. As a matter of historical interest, it should be noted that in 1941 Hennig viewed the prob- lem differently, and Bequacrt () and Wen- zel et al. (op. cit.) agreed with his suggestion that while Streblidae, Nycteribiidae, and Hippo- boscidae mav all be Calyp
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