Dasiops shewelli
REMARKS. Distinguished from D. aculeolus by the strong transverse depression
on the frons, darker wings, and by the shorter ovipositor with its much
stubbier apical segment.
FEMALE. Similar to D. aculeolz~s except as follows: Frons 1.25 times as wide as long;
sides less convergent below; transverse frontal groove very clearly marked, and forming a
discrete inverted-U. Basal segments of antenna and inner base of third segment paler orangebrown.
Wings slightly more yellowish-brown. Pollen of abdomen, especially, more conspicuous.
Terga one to four uniformly pollinose on disc, thinner at lateral margins, especially
on tergum four; tergum five pollinose on middle of anterior haif; tergum six entirely polished
black.
Ovipositor shorter and broader; two apical segments combined only 6.5 times as long as
greatest width. Apical segment shorter; less than twice as long as wide.
MALE. Resembling female except as follows: Frons narrower; 1.25 times as long as
wide; transverse furrow shallower and not forming inverted-U. Wings somewhat darker
brown, especially on the apical half anteriorly