18 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol. Gl. 



first tergite gradually widening toward apex, half as wide at apex as 

 long, spiracles in middle, medially shagreened, laterally longitudi- 

 nally aciculate; second and third tergites much broader than long, 

 second faintly aciculate, third faintly shagreened ; ovipositor sheath 

 slightly longer than first tergite. 



Black; me^scutum medially, scutellum, pronotum dorsally, first 

 tergite at apex, and second and third largely reddish ; legs testaceous, 

 paler at base ; wings hyaline immaculate ; mandibles and palpi strami- 

 neous antennae testaceous at base, black at tip with an incomplete 

 white annulus on flagellar joints 5-7 ; ovipositor sheath pale, brown at 

 apex. 



Type locality. — Alpine region of Mount Washington, New Hamp- 

 shire. 



Tyye.—Q^X. No. 25022, U.S.N.M. 



One female taken by Mrs. Annie T. Slosson. 



(MELOPHRON (sic!) ABDOMINALIS Ashmead MS.=STYLOCRYPTUS MUCRONATUS 



(Provancher). 



(MEDOPHRON MONTICOLA Ashmead MS.)=STYLOCRYPTUS SUBCLAVATUS (Say). 

 MEGASTYLUS ASHMEADI, new species. 



"Aperileptus plcuralis Ashmead, MS.," Slosson Ent. News, vol. 13, 1902, p. 

 321. 



Female. — Length, -1.5 mm. ; antennae, 3.5 mm. 



Head more than half as thick antero-posteriorly as wide, subpol- 

 ished-shagreened, face polished ; diameter of lateral ocellus and post- 

 ocellar, interocellar, and ocell-ocular lines all subequal; malar space 

 nearly twice as long as basal width of mandibles ; antennae tapering 

 toward apex, basal joint of flagellum twice as long as second and about 

 four times as long as thick; thorax shagreened, mesopleurum more 

 faintly, mesoscutum very faintly so, pronotum polished, metapleurum 

 and propodeum opaque; notauli obsolete; propodeum with both trans- 

 verse carinae and the lateral carinae indicated, medially impressed 

 before basal carina ; abdomen opaque shagreened basally, subpolished 

 apically ; first tergite nearly half as wide at apex as long, spiracles sub- 

 prominent, slightly before middle; abdomen compressed from base of 

 filth tergite, tergites beyond sixth retracted ; hypopygium even wuth 

 apex of abdomen ; ovipositor slender, briefly exserted. 



Black, with thorax and abdomen partly reddish; face brownish, 

 yellowish above clypeus and below antennae; clypeus, mandibles, 

 front and middle coxae, and all trochanters stramineous; palpi, 

 tegulae, and wing bases white; scape reddish; pronotum pale at 

 lower and liumeral angles; mesopleurum below and sternum red- 

 dish; legs testaceous, the h.lnd tarsi and their tibiae at apex fuscous; 

 wings hyaline, venation p;- ie brownish ; abdomen beyond first tergite 

 dark brownish with second tergite at apex and third largely reddish 

 yellow, apical tergites narrowly pale margined. 



