Species 5g. C. sanctipauli, Sublette 1966.

Adult

Description of C. sanctipauli, including original description as C. conformis, from Sublette (1966).
Note: 'deep back' should read 'deep black'

From these can be derived:
Male:  Wing length 5.33 mm; VR 1.04 (0.96).  Frontal tubercles 41 µm.
Clypeus slightly narrower than diameter of antennal pedical.  Mesonotum with slight tubercle.
Acrostichal setae in two rows; dorsomedial multiserial; prealar about 15.
Leg ratios: Ant 1.0-1.05; Mid 0.58; Hind 0.65.  BR 8.0.
Tergite IX with about 8 setae in a subdivided pale patch.

  

Hypopygium of holotype male (from Sublette 1966)

Anal point moderately wide and parallel sided, Superior volsella E-type of Strenzke (1959), closest to fig. i; Inferior volsella just longer than the anal point, to about middle of gonostyle and bending outwards at the end; gonostyle only moderately swollen and narrows noticably over posterior third.

A possible additional male specimen from Alaska was collected by P.L. Hudson and A. Namayanden.
Available information from this specimen is: Color dark brown.  Wing length 5.20 mm, width 1.1 mm, >40 setae on squama.  AR 3.50.
About 8 setae on TIX, in individual pale areas; Superior volsella closest to E(e) type of Strenzke (1959), reaching only about halfway along the length of the Inferior volsella which has simple setae, but restricted more to the distal end than shown by Sublette (1966); gonostylus moderately swollen, reducing over posterior third and with 5 setae at the tip.  Anal point about the same length as the IVo and could be narrowed at the base.

Hypopygium of possible male (from Hudson & Namayanden)

Female: Length 8-9 mm.  LR about 1; no beard.

Pupa, Fourth instar larva and Cytology: Unknown

Alaska - St Paul Island, Bering Sea (57.18°N, -170.27°W) (Type locality); Margaret Lake, near Beaver Pond, Revillagigedo Island (55.33°N, -131.33°W).

Townes (1945) considered C. conformis to be a synonym of C. pilicornis but, in renamimg it, Sublette noted that it differed in significant ways: the anal point is broader, the Superior volsella more conspicuously hooked, the gonostyles more distinctly tapered apically and the ninth tergite with a conspicuous patch of setae, so considered it a new species closely related to C. pilicornis.  It would also be closely related to Species 5e, but there is no mention of a pale scutellum.