Dec., 19158 Bulletin of the Brooklyn Entomological Society 105 
Rhyssa persuasoria L. 
An interesting case of reduction of the areolet within a single 
species is presented by the American representatives of this hol- 
arctic form. The areolet in different individuals, especially of 
the form albomaculata becames reduced in size, petiolate, strongly 
petiolate, minute and triangular, and finally entirely absent (the 
form described by Provancher as Epirhyssa crevieri). 
In the material collected by Mr. Yuasa there is a specimen of 
this last form, entirely lacking the areolet. Three others lack 
the lateral abdominal white spots. 
Paniscus (Parabatus) latungula subspecies deceptor Morley. 
Mr. Hachiro Yuasa has collected and given to me a female of 
this species, recently described from a unique Nova Scotian male. 
In view of the fact that the original description is by comparison 
with a European species which may not be familiar to American 
authors, I have deemed it worth while to give a description of the 
female here. 
©, Entirely luteous except the head which is lemon yellow except on 
its caudal aspect, and the posterior tarsi which are broadly paler medially. 
Wings hyaline, the veins pallid, the stigma yellow. Length 9 mm. 
Posterior border of temples and vertex without a carina; posterior 
ocelli just touching the eyes, the latter emarginate; face prominent below 
the ocelli; apophyses obsolescent; clypeus truncate. 
Mesonotum minutely punctulate; parapsidal furrows impressed, at least 
anteriorly; scutellum margined at base and weakly on the sides toward 
but not to the apex (the carinze sharper but much weaker except at base 
than in cristatus) ; postscutellum not transversely cristate (as in cristatus). 
Propodeal carinze entirely lacking, except a transverse reflexed rim sur- 
rounding the immediate base of the petiole; spiracles oval. 
In the forewing the areolet is present but triangular and petiolate; the 
disco-cubital vein (M,., and M,..) strongly curved, arising from the dis- 
coidal very close to the subdiscoidal (1. e., dividing into R, and R, very 
near the insertion of m), slightly broken but without real stump of a vein 
(M) ; the basal and transverse medial veins interstitial; transverse median 
vein of the hind.wing strongly angled above the middle. 
Petiole with deep lateral pits at base, otherwise without sculpture; the 
spiracles but little nearer to each: other than they are distant from the 
base of the petiole and much basad of the middle. Thyridia on the basal 
margin of the second segment and moderately deeply impressed. © 
