30 PROCEEDINGS OF THE NATIONAL MUSEUM vou 71 



veins and ending distally in a broad curve; all coxae and femora 

 black tinged with purple; hind tibiae black; anterior and median 

 tibiae black at base and apex with a yellowish band, more or less 

 variable in extent, beyond the middle; abdomen black or brownish 

 black, more or less strongly tinted with purple and green. 



Male. — Length 0.80 mm. Similar to the female except that the 

 second and third funicle joints are distinctly pedunculated at apex, 

 the fourth funicle joint is concolorous with the rest of antennae, the 

 peduncles on the second and third funicle joints are pale, the metal- 

 lic green lines on head and thorax are not quite so conspicuous, the 

 infuscation of the wings is a little less strong and the abdomen is 

 elliptical in outline. 



Type locality. — Difficult Run, Virginia. 



Type.— C&t. No. 28769, U.S.N.AL 



The holotype female, three paratype females and six males, includ- 

 ing the allotype reared by E. A. Chapin from a sporophore of the 

 fungus Fames fomentarius in which Brachycis hrevicollU Casey were 

 present. This mass of fungi was taken at the mouth of Difficult 

 Run, a small stream emptying into the Potomac a few miles west of 

 Washington, D. C. Two paratype females were taken by H. S. Bar- 

 ber, October 29, 1922, from a sporophore of PoHa iiiermis which was 

 infested by Brachycis hrevicollis. These adults as well as larvae and 

 pupae of the parasite were found in the burrows of the beetles by 

 Mr. Barber. A single female paratype was found by Mr. Barber in 

 a sporophore of Polyporia gilvus infested by Brachycis and Ceracis 

 received from a correspondent from New York City. 



EUPLECTRrS JUNCTdS, new species 



Differs from E. catocalae Howard and fronfaUs Howard by having 

 the abdomen devoid of any black at apex. May be distinguished 

 from platyhypenae Howard and marginatus Ashmead by the white 

 marked face, and from comstochi Howard, leucotropJiU Howard, semi- 

 marginatus Girault, and pachyscapha Girault by the more distinctly 

 sculptured scutellum in which it resembles hicolor Walker but is 

 readily distinguished from that species by the almost wholly testa- 

 ceous abdomen. 



Female. — Length 2 mm. Antenna! scape normal, pedicel about 

 two-thirds the length of first funicle joint; funicle joints successively 

 diminishing slightly in length, the first about twice as long as broad, 

 the fourth very shghtly longer than broad; club short, conic-ovate, 

 about as long as first funicle joint; head mostly smooth, the frons 

 above and the occiput very finely and obscurely reticulated, and a 

 few weak setigerous punctures along the inner eye margins; anterior 

 face of pronotum scaly-punctate, the posterior margin polished; 

 mesoscutum finely rugulose, parap*idal grooves very distinct, the 



