NO. 1991. l^EW PARASITIC HYMENOPTERA—ROBWER. 53 Y 



segments shining, impunctate. Ruf o-piceous ; frontal depression, 

 scutum and prescutum, posterior part of the mesopleura blackish; 

 basal joints of the antennas ferruginous, apical joints, piceous; the 

 lateral part of the front and the legs paler than the body; wings 

 strongly dusky with a hyaline band across them at the base of the 

 stigma and with the bases clear. 



Paratype does not differ essentially from the type. 



Elmore, South Dakota. Described from two males recorded under 

 Bureau of Entomology Number Hopk. U. S. 730, material collected 

 by J. L. Webb. 



Type.— Cat. No. 15520, U.S.N.M. 



Genus ECPHYLUS Forster. 

 Table to certain Nearctic species of Ecphylus. 



The species described as texanus by Brues is the only Nearctic 

 species known to be omitted from the following table, which is based 

 on females only: 



First tergite much longer than its apical width; prescutum with strong lateral tuber- 

 cles 1 



First tergite with the apical width greater than or subequal with its length 2 



1. Ferruginous; prescutum without a median furrow; ovipositor longer than the 



body pallidus Ashmead. 



Black; prescutum with a foveolate median line; ovipositor about the same length 

 as the body hubbardi Rohwer, p. 538. 



2. First tergite with all the striae of equal size so there is no median area 3 



First tergite with two striae predominating or with two furrows so there is a well- 

 defined median area 4 



3. Notauli foveolate; piceous; ovipositor as long as abdomen lycti Rohwer, p. 538. 



Notauli not foveolate; head black, thorax and abdomen rufo-ferruginous; ovi- 

 positor shorter than the abdomen nigriceps Ashmead. 



4. Prescutum with an impressed median Hne (dark piceous; middle area of the first 



tergite narrowed posteriorly and not as coarsely sculptured as sides). 



hypothenemi Ashmead. 

 Prescutum without an impressed median line 5 



5. Notauli foveolate (rufo-ferruginous; ovipositor shorter than the body). 



schwarzi Rohwer, p. 538. 

 Notauli not foveolate 6 



6. NotauH obsolete posteriorly (ovipositor much shorter than the abdomen). 



johnsoni Rohwer, p. 539. 

 Notauli complete 7 



7. Ovipositor much shorter than the abdomen; head black, thorax and abdomen fer- 



ruginous californicus Rohwer, p. 539. 



Ovipositor longer than or subequal with length of the abdomen; head, thorax, and 

 abdomen (in part) piceous 8 



8. Mesonotum shining, impunctate; first tergite bright yellow, the following segments 



piceous; ovipositor longer than abdomen lepturgi Rohwer, p. 540. 



Mesonotum finely granular; first tergite and base of second ferruginous; rest of 

 abdomen piceous; ovipositor subequal in length with the abdomen. 



bicolor Rohwer, p. 540. 



