44 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 120 
Bucerophagus productus (Burmeister) 
Fiaurss 53, 54, 61, 62, 70 
Colpocephalum productum Burmeister, 1838, p. 439. [Type host: Buceros abys- 
sinicus=Bucorvus abyssinicus (Boddaert, 1783).] 
Colpocephalum vittatus Giebel, 1866, p. 394 (nomen nudum). 
Colpocephalum productum ‘‘Nitzsch.’’—Giebel, 1874, p. 266, pl. 14 (figs. 2, 3). 
Colpocephalum eurygaster Piaget, 1888, p. 162, pl. 4 (fig. 5). [Type host: Lep- 
toptilus argala error—Bucorvus abyssinicus.] 
Bucerophagus productus ‘‘Nitzsch in Burmeister’”’—Conci, 1950, p. 78, figs. 1-7. 
Bucerophagus productus (Burmeister).—Hopkins and Clay, 1952, p. 64. 
A neotype, in the Zoologischen Institute der Universitat Halle, 
Germany, was erected by Conci, who redescribed and figured 
Bucerophagus productus from Bucorvus abyssinicus collected in east 
Africa by Prof. E. Zavattari. A male from the same series is in the 
collection of Mr. G. H. E. Hopkins, Zoological Museum, Tring, 
Hertsfordshire, England. 
A lectotype male was designated by Clay (1951a) from the Col- 
pocephalum eurygaster syntypes in the Piaget collection, and it is 
now in the British Museum (Natual History), BM 1157a, with 3 
syntype males and 1 syntype female, BM 1157 and 1158. 
Clay (1951a) stated that Bucerophagus productus also seemed to 
occur naturally on Bucorvus leadbeatert (Vigors). 
Male: Smaller than Bucerophagus africanus in all measurements 
except length of head; approximately the same size as B. forcipatus 
(table 12). Metasternal plate triangular, expanded anteriorly, with 
22-26 setae (fig. 70). Each lateral margin of abdominal tergites 
III-VIII with 2-4 short setae between the spiracle and postspiracular 
seta except for tergite VII with 1 or 2 setae and tergite VIII with one 
seta. Abdominal sternite I with 22-24 total setae and abdominal 
sternite II with 66-68 total setae. Terminal abdominal segments 
as shown in figure 61. Genitalia as shown in figure 62, with branch 
connecting parameres posterior to endomeres pointed medially. 
Female: Approximately the same size as Bucerophagus africanus; 
larger than B. forcipatus in all measurements except width of head 
and width of metathorax (table 12). Resembles the male except 
that metasternal plate has 26-34 setae. Abdominal sternite I with 
28 total setae and abdominal sternite II with 74-76 total setae. Ter- 
minal abdominal tergite with 26-38 setae on posterior margin; ab- 
dominal sternite VIII with 30-36 setae on posterior margin (fig. 53). 
Anal fringe with 42-56 setae (fig. 54). 
Discussion: Bucerophagus productus resembles most closely B. 
africanus which, however, is much more pigmented than B. productus. 
Males of B. productus are much smaller than females, but males of 
B. africanus are only slightly smaller than females. The metasternal 
plate is triangular in B. productus and trapezoidal in B. africanus; 
