NO. 2219. A REVISION OP THE CREMASTINI—CUSIIMAN. 527 



Head yellow with occiput, vertex, and front black, the spots 

 broadly confluent, scape and pedicel palo below, flagelluni bluck; 

 thorax rufo-testaccous; scutolluni yellow; notauli faintly y(^llowi.sh; 

 tcgulao and wing bases whitish; proscutum medially, depression 

 before scutellum, space between scutcUum and wings, basal middle 

 of propodcum, metastcrnum and prcspectus black; wings hyaline, 

 veins brown; legs testaceous, front and middle coxae, apices of hind 

 coxae, and all trochanters whitish, hind femora darker, their tibiae 

 and tarsi infuscatcd. Tergitcs 1 and 2 and basal middle of others 

 black or piccous, tergitcs otherwise reddish, paler below. 



Male. — Length 5 mm., antennae (broken). Differs from female 

 as follows: Eyes slightly divergent below, shorter than greatest width 

 of face: foveo-ocular line two-thirds as long as interfovcal line; ocelli 

 very little larger; punctuation of thorax throughout less dense; sculp- 

 ture of propodcum somewhat stronger; petiolar carinae stronger 

 toward base, tergite not completely encircling sternite; postpetiolo 

 barely elevated above level of petiole. 



Colored like female except that the pronotum is yellow, the de- 

 pression in front of scutellum is darker; the whole propodcum black; 

 metapleura darker; red color of abdomen replaced by yellowish and 

 dark color more sharply defined. 



Type-locality. — Tempe, Arizona. 



Host. — Plati/nota jlavedana. 



Type.— Cat. No. 20262, U.S.N.M. 



Described from two females and two males reared from the host by 

 R. N. Wilson under Webster No. 7205, August, 1914. 



Paratype a (female) differs from the type in being smaller and in 

 having the prescutal spot less distinct and the petiole piccous, al- 

 though otherwise generally slightl}^ darker. Paratype h (male) is 

 slightly smaller than the allotype, has the propodcum less exten- 

 sively black, and the matapleura colored like the mesoplcura. 



CREMASTUS (CREMASTUS) FACILIS (Cresson). 



Porizonfacilis Cresson, Trans. Amer. Ent. Soc, vol, 4, 1872, p. 175. 

 Porizon macer Cresson, Trans. Amer. Ent. Soc, vol. 4, 1872, p. 175. 



Both facilis and macer are represented by paratypes in the United 

 States National Museum, the former only by males and the latter by 

 both sexes. A large series of males from the Belfmge collection ixnd 

 otlier som'ccs shows that, as suggested b}" Cresson in his description 

 of macer, the two species are undoubtedly the same, at least in the 

 male sex. Wliethor or not Cresson had the sexes properly associated 

 I do not know, as I have not seen the types of either species, and tlie 

 only female available is the paratype of macer. Tlie mnles vary in 

 color from those in which the thorax is black or piceous except for the 

 pronotum, notauli, scutellimn, and a yellow stripe on the meso- 



