. Fig. G5.—Microdon hellus, sp. nov., 5- of the large genitalia is pronn'nent, witli ap])endages concealed beneath the body. Legs sliort and thick, tarsi wide. Wings com- paratively short, venation recalling that of Evments, marginal cell widely open ; 3rd vein sinuous, with a stump of a vein projecting backwards nearly half-way across 1st posterior cell; latter closed a long distance from border of wing by the strongly recurrent tip of the 4th vein ; anterior cross-vein distinctly 1 elbre middle of discal cell; apical portion of 5th vein rectangular, nearly upright; anal vein slightly but dis
. Fig. G5.—Microdon hellus, sp. nov., 5- of the large genitalia is pronn'nent, witli ap])endages concealed beneath the body. Legs sliort and thick, tarsi wide. Wings com- paratively short, venation recalling that of Evments, marginal cell widely open ; 3rd vein sinuous, with a stump of a vein projecting backwards nearly half-way across 1st posterior cell; latter closed a long distance from border of wing by the strongly recurrent tip of the 4th vein ; anterior cross-vein distinctly 1 elbre middle of discal cell; apical portion of 5th vein rectangular, nearly upright; anal vein slightly but distinctly curved at tip ; squamae large. liange. Europe, North and South Africa, Orient, Tasmania, North and South America. Life-history. That of M. mutahilis, L,, and of certain other European species is known. The larvae are so unlike those of any other insects that when first discovered they were acttially described as by two authors, writing independently, in two consecutive years, and several years elapsed before Schlotthauber cleared up the mystery, the matter being more
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
