Laphria divisor (Banks):
Redescription


HEAD
    face in male, hairs on upper and central portion of upper face erect, yellow; these grade into procumbent yellow hairs laterally, which project over the gibbosity to each side; female similar, except that hairs on upper portion of upper face black; in both sexes hairs on gibbosity erect, yellow above about half distance from top of oral margin to top of gibbosity; in female with several black hairs intermixed; in both sexes hairs on lower portion of gibbosity black: area framed on each side of the oral margin by the gibbosity dorsally, and the inner margin of the eye dorsolaterally, is bare

    beard black on upper third, lower two-thirds entirely yellow

    hairs underneath the proboscis yellow

    palpal hairs hairs on first segment yellow in male, black in female; hairs on second segment black in both sexes

THORAX
    postpronotal lobes male with long yellow hairs, female with black hairs on anterior three-fourths, and golden-yellow hairs on posterior fourth

    mesonotum in male evenly covered with long yellow hairs, about equal numbers of which are either erect or recumbent; these hairs increase slighly in length on posterior calli; female similar, except hairs are golden yellow, and a plurality of them are recumbent, especially anteriorly

    tuft of hairs in front of wings black

    tuft of hairs in front of haltere mostly yellow

    scutellar hairs on disk medium length, recumbent, and yellow; on margin long, erect, and yellow

    ground color of legs from a distance the ground color appears to be black, but when viewed with a dissecting microscope, from an angle the surface appears to be blue black, and when viewed directly, that is from right angles, with artificial light, it appears to be very dark reddish brown; the surface is also highly reflective and where yellow hairs are present on the tibiae, reflects these as reddish brown

    fore- and mid-tibiae in male fore-tibiae yellow-haired posteriorly, mid-tibiae yellow-haired both dorsally and posteriorly; tibial hairs black in female

    hind tibiae black haired

    hind femora male with noticable but not exaggerated line of yellow hair stretching dorsally from near base to abut three fourths way to apex; long yellow hairs also present ventrally on about basal half; female similar, but with lines much reduced and hardly visible; in both sexes "knee" or apex black haired

ABDOMEN
    abdominal segments tergite 1-3 in male, and 1-4 in female, mostly black haired; yellow hairs are present in both sexes as patches at sides of tergite 1 and as isolated hairs at extreme lateral margins of 2; in male, most of tergite 4, and all of 5-6 with yellow hair; in female, narrow strip on posterior margin of tergite 4, and all of 5-6, yellow haired; otherwise hairs these tergites are black haired; tergite 7 black haired in both sexes


Back to synopsis of Laphria divisor