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NO. 1927. DESCRIPTIONS OF NEWHYMENOPTERA, 5— CRAWFORD. 183 



hind tibise, one very minute, but visible with the 65 magnification of 

 the binocular microscope. 



In general appearance this genus is much like Diaulinus, hence the 

 name. 



DIAULINOPSIS CALLICHROMA, new species. 



Female. — Length about 1 mm. Bronzy green; scape, except tip, 

 yellowish-white; joints of funicle subequal in length, the fu'st about 

 as long as the pedicel; club about as long as pedicel and funicle 

 together; mesoscutum and scutellum longitudinally lineolate, so 

 finely so as to appear silky; toward apex of scutellum the sculpture 

 fainter; metanoteum and propodeum polished, almost smooth, with 

 faint indications of sculpture; the propodeum without median or 

 lateral carinse, but with indistinct spiracular sulci; wings hyaline; 

 legs yellowish-white, the coxae and the basal half of the hind femora 

 aeneous. 



Male. — Length about 0.65 mm. Similar in color and sculpture to 

 the female, but the scape dark, sculpture of the propodeum more 

 pronounced. 



Type-locality. — Tempe, Arizona. 



Material received from the Bm-eau of Entomology, United States 

 Department of Agriculture, under Webster note number 7286, with 

 the additional note "Ex Agromyza jucunda." 

 • Type.— Cat. No. 14795, U.S.N.M. 



The allotype male has one antenna beyond the scape broken off. 



Subfamily E;TJJL.or»iii]sr.a:. 



DIAULINUS Sehulz. 



Diaidus Ashmead, Mem. Carnegie Museum, vol. 1, 1904, p. 356 (preocc). 

 Diaulinus Schulz, Spolia Hymen., p. 146, 1906. 



On the page cited for the description of the genus by Doctor Ash- 

 mead this is given as a new genus and the type cited as D. hegini 

 Ashmead; on page 372, however, he says that it is a new name for 

 Diglyphus Thomson (not Walker), but cites the same species as type. 

 The status of the genus as defined in the first place must stand, and 

 the Thomsonian genus, if not the same as Walker's, still needs a new 

 name. 



Since Doctor Ashmead never gave an extended description of the 

 type-species some notes from the type specimen are given below. 



KEY TO THE FEMALES FROM NORTH AMERICA. 



1. Tibiae with a narrow dark annulus, hardly broader than the yellow annulus basad 



of it hegini Ashmead. 



Tibise with a broad dark band reaching at least past the middle 2. 



2. Annulus on hind tibiae extending not over two-thirds length of tibise ; postmarginal 



vein about as long as stigmal; fun-ows on scutellum as far apart as length of 



scutellum pulchripes Crawford. 



Aunulus on hind tibiae extending three-foiu:ths length of tibiae; postmarginal vein 

 longer than stigmal; furrows on scutellum about half as far apart as length of 

 scutellum rvehsteri Crawford. 



