Dasiops dreisbachi
MALE. Moderately large; body length about 5.5 mm. Entirely blscl;, uniformly shining,
metallic steel-blue. Eye with sparse, short, pubescence barely evident under low magnification;
the hairs fully as long as the diameter of an ornmatidiurn. Frons black, greyish dusted in
middle, more thinly so at sides; frontal hairs rather short. fine, and sparse; sides of from slightly
convergent anteriorly. Lunule broad, greyish pollinose, with 10 setulae. Face and parafacials
silvery pollinose, but appearing silvery only when vicwed from above. Facial carinr wcak;
with several fine setulae arising as far downward as the base of the third antennal segment.
Parafacials, at narrowest about as broad as distance beween the anterior and posterior ocelli.
Cheek with 5 strong, closely-placed, upwardly-curved, vibrissa-like bristles; no smaller hairs
or bristles above the uppermost bristle. Antenna wholly brownish-black. Second segment
with a strong dorsal bristle. Third segment just under mice as long as wide. Arista with
very short plumosity; the longest ~lumulesn ot longer than the 'penultimate aristal segment, and
the total width of the plumosity less than one-third as wide as third antennal segment.
Mesonotum lightly dusted; distinctly shining steel-blue; hairs short; bristles strong; no
hairs in prescutellar area or in notopleural depression. Scutellum bare except for usual 4
bristles; disc strongly arched. Poststigmatal bristles 2; stigmatals 1; sternopleurals 1; latter also
with numerous bristly hairs. Prosternum with several fine hairs on each side.
Legs and tarsi entirely black; ~ r e a ~ i c adol r sal tibial bristle evident on mid tibia, but
scarcely distinguishable on other legs. Wing appearing pale-yellowish hyaline to naked eye;
with transmitted light, whitish at base and slightly brownish fumose anteriorly. Calyptrae
entirely yellowish-white with concolorous margins and fringes; with a cluster of long, entirely
pale-yellowish hairs at the fold.
Abdomen shining, pale bluish-black; uniformly hairy, the hairs short and depressed. Firsr
sternum without hairs; with an oval, polished area in the middle. Surstylus with a comb-like
series of stout teeth.