AMERICAN MUTII.LID.E. 285 



shallow; first segment short and broad, rather pyriforni, strongly convex pos- 

 teriorly and with strong pnnetures; wings suhhyaline, nervines and stigma tes- 

 taceous, the latter sometimes brown ; marginal cell about equal to two-thirds the 

 length of stigma; third snbmarginal higher than long; second triangular gener- 

 ally subpetiolate, almost equal to the length of the third on the cubital nervnre. 

 Length 9 mm. 



Arizona. Four specimens. 



19. BracliycJsti!« breris n. sp. 



I .—Pale castaneous, sparsely clothed with pale i.uhescence ; antenna; and legs 

 testaceous, the latter ].alest; head very little produced and not narrowed 

 behind; space between hind ocelli greater than that between them and eyes; 

 punctures of thorax large and sparse, closest on mesopleurse.. sparsest on dorsu- 

 lum ; upper and posterior surfaces of middle segment roughened at sides, and 

 the portion dividing them also roughed, otherwise comparatively smooth, except 

 in the sulcus of upper surface; abdomen with strong, scattered "punctures- first 

 segment short and broad, almost as wide at apex as base of second ; wings sub- 

 hyaline, nervures and stigma testaceous; marginal cell very short, barelv equall- 

 ing half of the stigma in length ; two submargiuals of nearly equal length, the 

 second subpetiolate; second recurrent vein interstitial with the second trans- 

 verso-cubital vein. Length 9 mm. 



California. One specimen. 



20. Brachy<*isti!« perpiiuctatiis Ckll. 



Brachycistia perpnnctatus Cockerel!, Tr. Am. Ent. Soc, xxii, p. 291, % , 1895. 

 Alufilla Belfragei Dalla Torre, Cat. Hym., viii, 15, 1897. 



New Mexico : Las Cruces. This species is not at all .similar to 

 Chyphotes Belfragei, with which Dalla Torre has coufu.sed it in 



his " Catalogue." 



The following two species are represented in the female sex only : 



21. Brachycistis rutilans Blake. 



Mutillariitilans Blake, Tr. Am. Ent. Soc. vii, 248, 9, 1879. 

 California. 



22. Brachycistis biinactilatus n. sp. 



9.— Pale castaneous, sparsely clothed with short, pale pubescence; thorax 

 above with a whitish, pale, not very dense pubescence; head and thorax finely 

 punctured ; legs paler than thorax ; second dorsal with two widely separated pale 

 yellowish spots; second and third dorsals apically. and sixth medially fuscous 

 the latter yellow at base and apex. Length 4 mm. * ' 



Missouri : Ripley County (P. J. Schmitt). One specimen sent to 

 me by Rev. R. Kraus. 



MYR.^IOSA Latreille. 

 Of the four species at present described from the United States, 

 only one is known in the female sex, M. thoracica, and there is 

 little doubt but that this will prove to be the female of i7. unicolor, 

 as both inhabit precisely the same regions. 



TRANS. AM. ENT. SOC. XXV. ,,_,^,,„_ ,yy9_ 



