18G4.] 135 



Hah. — New Jersey. E. T. Cresson. 



Seems to be closely allied to A. Abbottii Westw., but is much smaller 

 and somewhat differently colored. 



Fam. ICHNEUMONID.E. 



Gen. ICHNEUMON, Linn. 



BLACK SPECIES. 



Section 1. — Scutelluni and abdomen black Sp. 1 — 13 



" 2. — Seutellum white, abdomen black Sjj. 14—22 



" .3, a. Seutellum pale, or with pale markings ; abdomen black, 



terminal segment more or less white ' Sp. 23 — 24 



•' b. Seutellum ditto ; abdomen black, tip of first segment more 



or less white Sp. 25 — 27 



" c. Seutellum ditto : abdomen black, apex fulvous Sp. — 28 



YELLOW, RED AND BLACK SPECIES. 



" 4. — Seutellum ditto; abdomen tricolored — black, red & white 



or yellow Sp. 29—31 



YELLOW AND BLACK SPECIES. 



" 5. — Seutellum pale ; abdomen black, with the apex and in 

 general the middle also, banded or sj^otted with yellow 

 or white Sp. 32—34 



*' 6. — Seutellum pale : abdomen black, banded with yellow, the 



apex always black Sp. 35- — 38 



RED AND BLACK SPECIES. 



" 7. a. Seutellum pale: thorax black; abdomen red or red and 



black Sp. 39— 4ti 



b. Seutellum yellow, yellowish-red, or red ; thorax more or 



less red; abdomen red or red and black Sp. 47 — 63 



" 8. — Seutellum black, abdomen red or red and black Sp. 64 — 73 



" 9. — Seutellum yellow : abdomen red or red and black, apex 



white Sp. 74 — 7.i 



Section!. 

 ]. Ich. Maurus. u. sp. 



Black; antennae with a broad white annulus ; wings dark fuscous; central 

 area of naetathorax rotundate, moderate. 



Femdlc. — Black, opaque; head with very narrow pale orbits above 

 the antennae ; clypeus polished, with a rounded impression on each 

 side ; antennae about half the length of the body, black, the 9th to 17th 

 joints white above, spotted beneath with black, apical half involute, 

 flattened toward the tip and brownish-sericeous beneath. Thorax closely 

 punctured; seutellum flat, polished, with a few scattered punctures; 



