OP NATl'RAL niSTOUY. 740 



2. S. DUBIA. — IJlack ; ubdoiiu-ii fiTruiriimii- Icliin I Aitl, tu,. 

 yellow spots on the third segment. 



Inhabits United States. 



liody black : head and tliorax iiutnaculate : wiiij,'.^ d:irk violet 

 blue : cubital cellules two, with no appearance of more than 

 one recurrent nervure: abdomen, first and second .^e^ml•Ilt■« 

 black; remaining segments I'erruginous ; more hairy, .somewhat, 

 than the others ; the third .segment, however, more or less tinged 

 with blackish and with two transversely nval, a little oblicpif. 

 bright yellow spots. 



Length four-fifths of an inch. 



A very fine, though rather conimon >;|n'cir>. in varinn.. j.-ut, .,1 

 the Union. 



3. S. CONFLUENTA nob. Western C^uarlorly Ki-]M.rtiT. — I think 

 it highly probable that Drury's fig. ;'), pi. 44, vol. i, i.s intended 

 for this in.sect. I was deterred from quoting this figure in con- 

 sequence of its yellow head and four-banded torLMUn ; but the 

 head is truly, on its front and base, covered with yellowish 

 cinereous hair, as well as the anterior part of the collar; this 

 may agree with Drury's observation that the " head is of a pale 

 yellow, in front" and "the neck is hairy and of a lemon color." 

 The species also probably varies in having four yellow band.H. 

 Drury's figure is that of a female, and my specimen agrees witli 

 it in having an immaculate thorax and scutel.as in t\w /(JsauUina 

 Fabr., which I believe to be in reality the female of thi.s same 

 species, and of course the same as that of Drury ; whereas he 

 quotes Drury's figure a.s that of rndu/a V. which appears to be 

 the male, if I may judge by the " thoraee maculato " and other 

 corresponding characters. I have no index to the first volume 

 of Drury, but Fabricius quotes the figure a.*; [365] Spher ]>fiimi- 

 />*">• Drury. If this be correct, I)rury has the priority, rind the 

 name and synonyms, will stand thu.« : 



Scolia plumipes Drur}'. 



'* /oasn/niia Fabr. (female). 

 " radula Fabr. (male). 



" confinenta Say, (female). 



18P.7.] 



