. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 40 Bonner zoologische Beiträge 54 (2005). Map 4: Distributions of Medon dilutus diliitus (Erichson) (open circles; examined records), M. d. cephalus Koch (filled circles; examined records), and of M. d. quadriceps (Wollaston) (filled squares; examined records and literature records). Grey circles: li- terature records, referring to either M. d. dilutus and M. d. cephalus. (j\ protarsomeres I - IV distinctly dilated; stemite VII posteriorly moderately excavate, with
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 40 Bonner zoologische Beiträge 54 (2005). Map 4: Distributions of Medon dilutus diliitus (Erichson) (open circles; examined records), M. d. cephalus Koch (filled circles; examined records), and of M. d. quadriceps (Wollaston) (filled squares; examined records and literature records). Grey circles: li- terature records, referring to either M. d. dilutus and M. d. cephalus. (j\ protarsomeres I - IV distinctly dilated; stemite VII posteriorly moderately excavate, with two combs of palisade setae, margin between these combs straight and without conspicuous tufts of long dark setae (Fig. 24); sternite VIII with relatively small posterior excision; aedeagal apex with subparallel sides, pronounced apico- lateral angles, and a small medio-apical emargination (ventral view) (Figs. 27-29). $: protarsomere I - IV not dilated. Intraspecific variation: Both the nominal subspecies and M. d. cephalus are extremely variable. This particu-. 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 Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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