182 PROCEEDINCS OF THE NATIONAL MUSEUM. tol. 4n. 



One specimen with the data, "Orono, Me., July 11; Me. Exp. St. 

 Lot 1385 Sub 5," sent by Prof. O. A. Johannsen, after whom the 

 species is named. 



Type.— Cat. No. 14595, U.S.N.M. 



This species is most closely related to E. glacidlis Ashmead, but 

 that species has the scutelhim convex, almost twice as long as wide, 

 and the postmarginal vein about as \oi\^ as the marginal. 



ELACHERTUS BENEFACTOR, new species. 



Female. — Ijength 2.5 mm. Black, with a more or less distinct 

 aeneous luster on head and thorax; head smooth, in front of each 

 lateral ocellus with a small reticulated area; antennae light brown, 

 joints of the funicle subquadrate, subequal in length, the first shorter 

 than the pedicel; mesoscutum and scutelhim distinctly reticulated, 

 the scutellum much longer than the width between the parallel fur- 

 rows; postmarginal vein distinctly longer than the stigmal; coxae 

 black, with an aeneous tinge; femora, except tips, brown; tro- 

 chanters, tips of femora, tibiae and tarsi, testaceous; abdomen dark 

 brown, lighter toward base. 



Male. — Unknown. 



Three specimens received from Dr. E. P. Felt with the labels, 

 reared from Evetria comstockiana Karner, New York, June 26, 1901. 



Type.— Cat. No. 14809, U.S.N.M. 



This species comes nearest cidarise Ashmead, but in that species the 

 first joint of the funicle is distinctly longer than the pedicel and the 

 scutellum between the lateral furrows is about as broad as long. 



DIAULINOPSIS, new genus. 



Belongs to the tribe Ophelimini as defined by Doctor Ashmead; 

 head thin anterio-posteriorly; scape in' female flattened and some- 

 what widened; funicle in female two-jointed, club swollen, three- 

 jointed, with a terminal spine; in the male the scape much more 

 widened, funicle two-jointed, club not enlarged; parasidal furrows 

 deeply impressed, scutellum with two parallel furrows; propodeum 

 without carinse, and with obscure spiracular sulci; postmarginal vein 

 almost as long as marginal; hind tibiae with two weak apical spm's, 

 the shorter one very obscure; abdomen sessile. 



Ty2)e of the genus. — Diaulinopsis callicliroma Crawford. 



In Doctor Ashmead's classification this would run to number 12, 

 where the antennal structure throws it out of both categories. In 

 his tribe Elacliertini (most of the genera of which have two spurs in 

 the hind tibiae instead of one) it runs to number 6 and does not fit any 

 of the genera under either of the divisions created there. It has the 

 same number of antennal joints as Atoposoma Masi and Atoposo- 

 moidea Ploward, both of which were created for nonmetallic species. 

 The former I have not seen but the latter has two apical spm-s on the 



