Dasiops phrikosifrons McAlpine, 1964

REMARKS. Easily distinguished from other members of this group, by its
small size and small amount of rugosity on frons.

MALE. Differing from D. vibrissatus as follows: Much smaller; length 2.5 to 2.75 mm.
Frons much narrower; narrower than in any other lonchaeid seen; at narrowest point equal to
width of third antenna1 segment; fully thee times as long as wide (less than twice as long as
wide in dbrissntzcs); rugosity weak and confined to lower extremities of frons and upper
portions of parafacials (lower four-fifths of frons rugose in vibrissam). Sides of frons
strongly concave. \Videst point on frons, immediately above lunule (frons almost parallelsided
in ~ihrirsatw). Single vibrissa-like bristle much weaker; scarcely distinguishable from
the surrounding hairs (strong and easily distinguished in vibrissatus).
Bristling of thorax much weaker and sparser throughout. Mesopleuron usually with only
one strong posterior bristle (the upper one); sometimes lower one relatively strong also (3
strong bristles in vibrissatus) .
Calypuae darker with darker margins and fringes. Abdominal terga five to six completely
bare; polished black (terga five, entirely, and six pollinose anteriorly in vibrissams).
FEMALE. Differing from male as follows: Frons; wider; scarcely 1.2 times as long as wide;
sides almost straight, only slightly diverging toward lunule. Abdominal terga four to six
inclusive, entirely polished black.