2 PROCEEDINGS OF THE NATIONAL MUSEUM vou 7 . 



Female. — Length 2.5 mm. Head transverse, about twice as broad 

 as long, distinctly narrowed behind the eyes; smooth and polished 

 tliroughout; clypeus slightly rounded anteriorly, with a few obscure 

 punctures along the anterior margin; antennae inserted a little above 

 the middle of head, 24-jointed in the type, the first and second flagel- 

 lar joints subequal and about twice as long as thick, following joints 

 shorter, those toward apex barely longer than broad, all flagellar joints 

 covered with short hairs; mesonotum smooth, parapsidal grooves deep 

 and weakly foveolated; transverse groove at base of scutellum deep 

 and divided by one earina in the middle; mesopleura smooth with 

 moderately deep foveolated sternauli; propodum with a sinuate 

 transverse carina before the middle, smooth in front of the carina, 

 irregularly rugose behind the carina, the smooth basal portion divided 

 by more or less distinct median longitudinal carina; stigma of fore- 

 wing broad; radius arising from middle of stigma, its first abscissa 

 not over twice as long as broad, second abscissa about two-thirds as 

 long as first intercubitus; nervulus postf ureal by about half its length; 

 recuirent joining first cubital cell; submedius with two indistinct 

 stubs extending into the anal cell, the first near the middle of sub- 

 medius and the second near the apex; hind tibial spurs subequal and 

 less than half as long as the short basitarsus; abdomen shorter than 

 the thorax, ovate; first tergite slightly longer than broad, broader at 

 apex than at base, punctate and shining, the basal middle smooth; 

 second and third tergites polished, subequal, together about as long 

 as the first; tergites beyond the third very short, together not longer 

 than the third; ovipositor extending beyond the apex of abdomen 

 about one-third the length of abdomen. 



Black; scape and legs including all coxae pale reddish testaceous; 

 the flagellum, and basal half of hind tibiae as also the hind tarsi black; 

 wings hyaline, costa and stigma black, rest of venation dark brown; 

 ovipositor sheaths black. 



Type locality. — Baton Rouge, Louisiana. 



Type.— C&t. No. 29438, U.S.N.M. 



Host. — Haltica litigata Fall. 



Described from five females reared from larvae of the above men- 

 tioned host, March 15, 1923, by C. E. Smith, and recorded in the 

 Bureau of Entomology under Chittenden No. 7082-1. 



Superfamily CHALCIDOIDEA 



Family PTEROMALIDAE 



MERISUS HARMOLITAE, new species 



Differs from M. destructor (Say) by being more slender, the abdo- 

 men subcylindrical, the antennal club a little less pointed at apex, 

 and the legs more contrastingly colored. 



