306 A. L. MELANDER. 



10. Head with weak punctures, petiole of abdomen with strong punctures. 



iM'bes sp. n. 

 Head with strong punctures, petiole with weak ones danaus Blake. 



11. Petiole of abdomen nodose, abdomen, legs and antennae black or blackened .12. 

 Petiole broader, subsessile ; insect rufo-testaceous 13. 



12. Large; wings iufumated ; second segment of abdomen with deep punctures; 



hind ocelli nearer the eyes than each other Coclterelli sp. n. 



Small; wings hyaline; second segment nearly impunctate; hind ocelli not 

 nearer the eyes than each other belleroplion Fox. 



13. Punctures of head sparse and deep; abdomen rufo-testaceous, covered with 



erect pubescence simpliciveiitris sp. n. 



Punctures of head irregular, becoming confluent between ocelli; second seg- 

 ment of abdomen with a brown pattern, and with decumbent pubes- 

 cence Wlieeleri sp. n. 



14. Petiole of abdomen nodose, sharply constricted at the second segment and 



strongly punctured 15. 



Petiole sessile or subsessile with the second segment, at most punctulate. .20. 



15. Reticulum of metathorax comparatively fine 16. 



Reticulum of metathorax coarse 17. 



16. Head, thorax and legs dark, pubescence yellow imperialis Bl. 



Insect and appendages pale, with long white hairs territa Ckll. 



17. Petiole of abdomen slender and nearly impunctate; abdomen dark. 



mesillensis Ckll. 

 Petiole of abdomen coarsely sculptured ; abdomen largely reddish 18. 



18. Mesonotum with shallow punctures and dense hairs; hind ocelli but little 



further from each other than from the eyes- • • -I'attersouse sp. n. 

 Mesonotum with deeper punctures and sparse hair 19. 



19. Hind ocelli as far from each other as from the eyes; wings crossed by a fus- 



cous cloud from the stigma danaus Bl., var. 



Hind ocelli large, considerably more distant from each other than from the 

 eye; wings not clouded albiciucla Fox. 



20. Petiole of abdomen broadly sessile with the following segment; metathorax 



reticulate over all . . nocti vagi) sp. n. 



Petiole subsessile; metathorax with an elongated, smooth basal area 21. 



21. Basal areas of metathorax very large, occupying nearly the whole segment ; 



insect pale yellow and small acontius Fox. 



Basal smooth areas of normal extent ; larger reddish species .'2. 



22. Hind ocelli nearer the eyes than to each other ; parapsidal grooves impressed ; 



pubescence coarse, yellow n n icolor Cress. 



Hind ocelli not nearer the eyes than to each other; grooves indistinct ; pu- 

 bescence sparse whitish a I e III on Fox. 



58. Mulilla imperialis Blake (96). 



Several specimens indefinitely labelled Texas examined (M. C. Z.). 



59. Mutilla danaus Blake (99). 



Fig. 54 ; mesosternum. 



Austin, Texas (May 5, 1900); Mesilla (at light, August 28th), 



