- squamula).
Species of the
subsection Acalyptratae are
noted for
lacking calypters. McAlpine, J. F. (1981).
Manual of
Nearctic Diptera.
Volume 1: Monograph:...
-
opposed to the Calyptratae. All
forms of the name
refer to the lack of
calypters in the
members of this
subsection of flies. An
alternative name, Acalypterae...
-
muscoids (or
simply calyptrates). It
consists of
those flies which possess a
calypter that
covers the halteres,
among which are some of the most
familiar of...
- flies, and the
arista usually is bare,
though sometimes plumose. The
calypters (small
flaps above the halteres) are
usually very large.
Their fourth...
-
Calliphoridae have
branched Rs 2 veins,
frontal sutures are present, and
calypters are well developed. The
characteristics and
arrangements of
hairlike bristles...
- vein)
shows a
sharp upward bend. Each wing has a lobe at the back, the
calypter,
covering the haltere. The
abdomen is gray or
yellowish with a dark stripe...
- are
specialized with a
sharp bend.
These flies also have well-developed
calypters. Blow
flies generally are
about the size of a
house fly or a
little larger...
- grey or brown, or
patterned in some species; they have a
basal lobe (or
calypter) that
covers the
modified ****-like
hindwings or halteres. The tips of...
-
characteristics of this
subfamily are: the stem vein is bare, the
lower calypter and the
proepisternal depression are bristly, but the
suprasquamal region...
- the
upper surface of the
lower lobe of the
calypter (as well as
hairs on the rear
margin of the
calypter as in most Syrphini).
Syrphus annulifemur Mutin...
