. Bulletin of the British Museum (Natural History) Entomology. go D. G. H. HALSTEAD well developed, similar to Silvanus. Metendosternite without a stem. First visible sternite of abdomen with femoral line closed as in Silvanus, in $ abdominal sternites may have tubercles (carinatus and fasciatus). Genitalia, ovipositor similar to Silvanus but with styli and valvifers comparatively broader; aedeagus with median strut as in Text-fig. 134 or tapered to apex, Text-fig. 141, parameres broad at apex and bearing 3 or 4 long and several shorter setae, median lobe as illustrated, internal sac with comp
. Bulletin of the British Museum (Natural History) Entomology. go D. G. H. HALSTEAD well developed, similar to Silvanus. Metendosternite without a stem. First visible sternite of abdomen with femoral line closed as in Silvanus, in $ abdominal sternites may have tubercles (carinatus and fasciatus). Genitalia, ovipositor similar to Silvanus but with styli and valvifers comparatively broader; aedeagus with median strut as in Text-fig. 134 or tapered to apex, Text-fig. 141, parameres broad at apex and bearing 3 or 4 long and several shorter setae, median lobe as illustrated, internal sac with complex chitinous structure very short (lateritius, Text- fig. 135) or long. Distribution. Oriental. (1) Key to the species of PROTOSILVANUS Interstria 3 strongly carinate for at least basal three-quarters. Sumatra and Singapore ........ carinatus Grouvelle (p. 93) Interstria 3 flat or slightly raised, not carinate ...... 2 Anterior angles of pronotum as in Text-figs 138, 146 or 147; dull; median line on metasternum almost complete; elytra fasciate or unicolourous; smaller species, 20-3-14 mm ........... 3. Figs 127-137. 127-128, Cathartosilvanus vulgaris (Grouvelle). 127, Maxillary palp. 128, Labial palp. 129-130, Protosilvanus lateritius (Reitter). 129, Maxillary palp. 130, Labial palp. 131-132, Parasilvanus ocellatus (Grouvelle). 131, Labial palp. 132, Maxillary palp. 133-136, Protosilvanus lateritius (Reitter). 133, Sternites 8 and 9 of $. 134, Male genitalia. 135, Internal sac. 136, Paramere and apex of median lobe. 137, Protosilvanus granosus (Grouvelle) same. Scale lines = 0-2 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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