234 Journal Xew York Entomological Society. [^'°1- ^i^- 



Table of Ageniella. 



1. White marks on the pronotum ; legs pale, spurs white calcarata. 



No white marks on pronotum 2 



2. Body all reddish 3 



Body not all reddish 4 



3. Wings pale, banded with dark accepta. 



Wings all dark blaisdclU. 



4. Abdomen with more or less red : spurs white 5 



No red on abdomen 8 



5. Hind legs mostly yellowish 6 



Hind legs black 7 



6. Abdomen all reddish ; antennte all black ; wings smoky. 



{riifigaster)^ congnia. 



Abdomen black on last few segments ; basal joint of antennae yellowish ; 



wings hyaline, with black tip apicipennis. 



7. Tibise and tarsi I yellowish ; third cell short, angular on middle 



behind pcrfccta. 



Tibiae and tarsi I black; third cell long, outer side oblique birkmanni. 



8. Hind legs mostly yellowish 9 



Hind legs black ... 10 



9. Third cell short, outer side rounded ; spurs yellowish externa. 



Third cell long, outer side oblique ; spurs brown texana. 



1 0. Spurs whitish 11 



Spurs blackish 12 



11. Basal vein very much before the transverse; anterior tarsi pale. iridipennis. 

 Basal vein nearly interstitial with the transverse ; anterior tarsi black. 



virginica. 



12. Third cell shorter than broad, outer side rounded, very small species.. ..13 

 Third cell longer than broad 14 



13. All tarsi pale, except last joint; wings faintly marked in m\d<\\e . . . .brevis. 

 Tarsi black ; wings uniformly blackish atrata. 



14. Basal vein interstitial with transverse: third cell not very long: (^ abdomen 



petiolate 15 



Basal vein much before transverse : second and third cells very long ; 

 wings black ; large species 1 6 



15. Wings pale, tip dark ; tibiae I yellowish petiolata. 



Wings dark, darker on tip; tibiae I scarcely yellowish euphorbicef 



16. Bluish species ; abdomen shining cupida. 



Black species ; abdomen dull annccta. 



Cryptocheilus incitus, new species. 



Female. — Black, body silvery sericeous. Clypeus hairy, truncate in front; 

 antenn.x slender, basal joint without hair, third very much longer than first, 

 line above does not reach anterior ocellus, this is nearly twice its diameter 

 from the laterals, and these full as near eyes as to each other ; vertex slightly 

 rounded, with a few long, erect hairs ; pronotum angulate behind ; mesonotum 



