Laphria vorax (Bromley):

    mystax top portion yellow, bottom portion black

    beard black or mixed black and yellow on top third, yellow on bottom two thirds

    hairs underneath the proboscis entirely yellow in male; in female, basal portion with yellow hairs, distal portion with black hairs

    palpal hairs mixed; some are black, some are yellow


    tuft of hairs in front of wings entirely yellow

    tuft of hairs in front of haltere entirely yellow

    scutellar hairs black on disk; black, occasionally with a few yellow, on margin

    ground color of legs

    fore- and mid-tibiae in male with long golden-yellow hairs along entire posterior surface of the fore-tibiae, and along entire anterior, dorsal, and posterior surfaces of the mid-tibiae; the female is haired similarly, with the difference that the golden-yellow hairs are confined to the posterior surfaces, and for some reason in some specimens are much less conspicuous, appearing distinct only when viewed from a particular angle

    hind tibiae extremely variable; in some specimens entirely black haired, or black haired, with intermixed short golden yellow hairs dorsally near the base, which like those on the fore- and mid-legs of some females, only appear distinct when viewed from a certain angle; in other specimens the golden -yellow hairs are much more conspicuous, and extend along the entire dorsal surface; these specimens when females are invariably those exhibiting conspicuous hairs on the fore- and mid-tibiae; the hairing of the hind tibiae, in effect, being just an extension of the condition present anteriorly; these latter specimens also invariably have more yellow on the abdominal tergites (see below); the photos shown here represent a male and female of this latter type

    hind femora black haired, except for a few scattered yellow hairs on the apex or "knee;" these yellow hairs not conspicuous, and cannot be seen without using a dissecting microscope

    abdominal segments hairing of tergites 1-3 extremely variable; yellow hair always present at sides of first tergite in both sexes, and at sides of tergites 2-3 in male, and black hair always present in a wide strip along the mid -line for all three segments. The amount of yellow—as opposed to black—hair between the middle strip of black hair and the lateral margin of the tergite varies considerably in the few specimens I have seen, from, being nearly absent (with the exceptions noted), to covering the entire surface. Tergites 4-5 in both sexes are entirely covered with yellow hair; tergites 6-7, with black hair

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