50 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61, 



terior coxae being smooth and shining above, in the entirely polished 

 second abdominal tergite, in the longer abdomen and the darker legs. 



Female. — Length, 4 mm. Face finely ruguloso-pimctate, and some- 

 what shining, with a distinct polished median carina extending from 

 the base of antennae to base of clypeus ; vertex, temples, and cheeks 

 finely confluentl^r punctate; mesoscutum finely ruguloso-pimctate, 

 shining ; the parapsidal grooves broad, rather well indicated ; scutel- 

 liim slender, closely punctate and shining; mesopleurae punctate an- 

 teriorly and below, polished above, and provided with a longitudinal 

 strongly crenulate furrow ; propodeum coarsely rugose, with a median 

 longitudinal carina ; stigma broad and about as long as the metacar- 

 pus; radius perpendicular to anterior margin of stigma, much longer 

 than first transverse cubitus ; posterior coxae distinctly less than half 

 as long as the thorax, entirely smooth and subpolished ; inner spur of 

 posterior tibiae half as long as the metatarsus; abdomen long and 

 slender, at least as long as the thorax, with a rather pronounced 

 ventral keel; the first dorsal plate narrow, parallel-sided, twice as 

 long as broad, smooth and polished on basal half, finely striate on 

 posterior half; second tergite long, much narrower at base than at 

 apex, the sides oblique on basal half, parallel on the apical half, and 

 provided with two parallel longitudinal grooves medially which en- 

 close a slender median area; the second and following tergites en- 

 tirely polished; ovipositor sheaths slightly exserted. Black; labrum 

 reddish; palpi dusky; antennae entirely black; tegulae yellowish; 

 wings hyaline, weakly infumated at apex; veins and stigma dark 

 brown; legs reddish-testaceous; posterior tibiae and tarsi somewhat 

 inf uscated ; abdomen entirely black ; ovipositor sheaths black. 



Type locality. — Indiana, 



Type.—C2it. No, 24000, U,S.N,M. 



Described from one female labeled "Ind. 2090, Collection C. F. 

 Baker." I have seen another female specimen, in the collection of the 

 Boston Society of Natural History, taken by Mr, C. W. Johnson, at 

 Hampden, Maine ; and three specimens in the Cornell University Col- 

 lection : one from Carbonate, British Columbia (J. C. Bradley) , and 

 two from Waubamic, Ontario (H. S. Parish). 



5. MICROPLITIS CARINATUS Ashmead. 



MicropUtis carinata Ashmead, Trans. London Ent. Soc, 1900, p. 293. 



Type.— In the United States National Museum. 



St. Vincent. 



This species has the habitus and particular characters of an Apante- 

 les, but because of the presence of the second intercubitus it must 

 be retained in Microplith. The propodeum, save for the median longi- 

 tudinal carina, is perfectly smooth ; the first dorsal abdominal plate 



