190 oRDKR HYun.Norri:i(.«. 



Eviiniidiic ? 



Pcucnsvi poLiTifcAToa. P. po/ifcro/or ( Fabr). ( I'lat* xxrl, fig. 7.) 



Antcmur black, I«mK ami f\M»rm, markt^l with two j«-lli.w l»an»l» at thi- «xtr»niUir» : 



iH-tlli ilUciurl. llrnti, i-jf?!, tlionix, nUi<>iurn,aiiil I»t;s Mack. Paljil lour, sirmlcr, two 



I<iug niiti two !>horl. I.(*K'« •'lender, l>ut the hiiul tibia- are thick ami stroiiK AUlouira 



rlon;;ntetl, c<iasi»liiiKo|">ix joints ; the el.>n«nle.i rinj^i long oval. Wine-. |m11u( ul and 



brtiwn. 



This MiiRuIar invct is m>t uuconiiuon iu New Knglaml and .New-York in autumn. By 



Ihc nwdsitUs, in S.|>teiuliiT and »>ciober, it is »«*n flying sluwly, as if borne down by iU 



lonn alnlomcn. When caught, it ultempts to stini;, and is capalde of inflicting a slight 



wound. 



Dpiiion MAcavRi-M ( Fabr.) ; laistiMos ( Drury). ( Plate xxvll, fig. 5.) 



Head small, dark orange : eyes large, black, oblong; ocelli shining black. Antcnne 

 nearly the length of the insert, bn>wn orange uml threa«l like. Color of all the other 

 part* of the iiiMCt browu orange, excei>t the wing-, whi«h are trans] an nt. 1 borax 

 short. AUlomen arche«l, three times as long as the thora.x, and attarhid to it by a 

 very narrow or threa«llike ba.se, widening in depth, but compre^.Md laterally : ex- 

 tremity oblitjuely truncate. Legs slender ; hind ones the longest : tips of the fore- 

 tibijc single, the others doublespined. Length of Iwdy one inch. 

 Tins is one of the most remarkable of our ichneumon-ilies, and apjx'ars during the 

 latter part of summer and early in autumn, when it is obs«Tveti bu-ily hoverimr over 

 plact-s where there are thickets of brambles, solidagos, asters, etc. in March of raterpillars 

 or other suitable obJ«>cts for the de{x>sition of its eggs. It is common in Massachusetts and 

 New- York. 



Opiiio5 MixDts. ( Plate XXV ii. fig. -1.) 



Color black : antenna, tibiie and tarsi yellow : anlennal na>us, anterior orbits, and frr-nt 

 greenish yellow ; the antennie are black or browni.sh black at base. Thorax clothed 

 with hairs. AUlomen compres.sed : basal joint cylindrical ; second joint as long and 

 rather longer than the first. Forelegs fulvoiis yellow, except a brown stripe on the 

 under side : tibia- of the hindbirs fulnais yeUow, except the tips, which are brown ; 

 feet all yellow, except the middle, which is brownish aln.ve. Length one inch. 



Oniio.N oLABRATis. ( Plate xivii, fig. 3.) 



Antennir shorter than the Ixxly. Color dull honey-yellow : head and orbits yellow ; wings 



bvaline, tnin>fi;irent, with au oval longitudinal glalmms f\>t>t on the large cid<ital 



cell just beyond its middle ; eyes dusky »ir brownish. Metathorax with a transverse 



ridge near the articulation of the abdomen. Length four-fifths of an inch. 



