162 ENTOMOLOGICAL SOCIETY 
1896: Dalla Torre, Cat. Hym. v. X, p. 180 (in Panurgidae). 
1898: Ashmead, Psyche, v. VIII, p. 283 (Melanostelis, type 
betheli) . 
This genus was founded on " labiata n. sp.," which is iden- 
tical with Cresson's nitida. I have examined Cresson's type 
specimen, Provancher's type of the genus, and specimens of 
Ashmead' s genus Melanostelis. 
The Cockerell species placed in this genus do not belong 
here as can be readily seen by an examination of the descrip- 
tions, which show that they are not Stelidinae. Provancher very 
distinctly states that the abdomen of labiata is banded, refer- 
ring to color -bands. 
Chelynia nitida Cresson. 
1888: Add. Fauna Bnt. Can. Hym. p. 322, 9 , cT, p. 450 
(Chelynia labiata) . 
1896: Dalla Torre, Cat. Hym. v. X, p. 180 (Chelynia labiata). 
The species in the cT at least is identical with Cresson's nitida, 
the types having been compared. They are almost exactly the 
same size; the $ type of Provancher has not been seen. The 
species was collected in "Ottawa". 
Stelis feeder alis Smith. 
1888: Add. Fauna Ent. Can. Hym. p. 336, $ , c?, p. 472. 
The single specimen in the collection that I have examined 
is unfortunately minus its abdomen. It appears to be a Chely- 
nia and perhaps is nitida Cr. It bears the numbers 1114 and 
22 and the species is reported by Provancher from "Ottawa 
(Guignard)." 
Microstelis later alis Say. 
1888: Add. Fauna Ent. Can. Hym. p. 425, n. 3, cT, 457, 
(Heriades plenum). 
1896: Dalla Torre, Cat Hym. v. X, p. 379 (Heriades plenus 
D. T.). 
The single male examined is numbered 1637 and is recorded 
by Provancher from "Ottawa (Guignard)." It has three dots 
on each side of first three segments, a line on each side of each 
of the segments 4 and 5, these lines being short and rather 
nearer the centre than the outside ; recurrent nervure interstitial, 
veins' brown, tegulae black, hairy and punctured ; face and body 
very slightly pubescent; legs brownish; front of first segment 
of abdomen polished, not punctured and with an abrupt ridge 
above. 
Microstelis maculatum Provancher. 
1888: Add. Fauna Ent. Can. Hym. p. 323, $ pp. 435, 457 
(Heriades maculatum) . 
