NO. 2349. REVISION OF NEARCTIC APANTELE8—MUESEBEVE. 491 



44. Mesoscutuiii and disk of scutelluni closely deeply punctate or rugoso-punc- 



tate and dull ; propodeum exceedingly coarsely rugose, with a large 

 areola, which is margined by prominent carinae; first and second ab- 

 dominal tergites roughened 44. trachynotus Viereck. 



Never so coarsely I'oughened 45. 



45. Propodeum punctate, shining, and the areola merely represented by a 



depression without prominent margins 46. 



Propodeum rugose, or at least with the areola sharply margined by 

 carinae 48. 



46. Posterior tibiae deep reddish-testaceous, at most with the extreme apex 



dusky; apical margin of the second abdominal tergite practically 



straight 45. miantonomoi Viereck. 



Posterior tibiae with at least the apical half black or fuscous, the base 

 rather luteous; apical margin of the second abdominal tergite usually 

 distinctly arcuated, especially in the female 47. 



47. Stigma narrow, without a pale spot at base ; second abdominal tergite usu- 



ally with striate roughening 46. melanopus Viereck. 



Stigma broad, with a distinct pale spot at base; second abdominal tergite 

 smooth and shining, rarely slightly punctate 47. cacoeciae Riley. 



48. Propodeal areola broad pentangular, margined by prominent carinae; cos- 



tulae very prominent, marking off large, smooth, and shining, apical 



lateral areas 48. lacteicolor Viereck. 



Propodeal areola usually slender; costulae wanting 49. 



49. Second abdominal tergite entirely smooth and polished ; disk of scutellum 



flat, wholly impunctate, very highly polishcd__49. diatraeae, new species. 

 Second abdominal tergite roughened and opaque 50, 



50. First abdominal tergite very broad at base, narrowing gradually from base 



to apex ; both first and second abdominal tergites closely rugulose ; wings 

 hyaline, the stigma and veins very dark brown ; ovipositor sheaths about 



half as long as the abdomen, and broad 50. laspcyresiae Viereck. 



First abdominal tergite not distinctly narrowing from base to apex ; wings 

 rather whitish 51. 



51. Ovipositor sheaths hardly half as long as the abdomen; areola open at 



base 51. tischeriae Viereck. 



Ovipositor sheaths at least two-thirds as long as the abdomen; areola com- 

 pletely circumscribed, closed at base by two oblique carinae converg- 

 ing anteriorly 52. aristoteliae Viereck. 



52. First abdominal tergite very long and broad, the sides parallel; the second 



and third tergites large and rectangular; first and second tergites coarsely 

 rugoso-punctate and black ; the third rugose, a crescent-shaped area at its 

 base black ; remainder of the abdomen largely reddish-testaceous ; head, 

 mesoscutum, and disk of scutellum very coarsely punctate; propodeum 

 coarsely rugoso-punctate, with a strong median longitudinal carina, and 

 with the posterior margin strongly curved, so that the apical angles 

 project very prominently ; stigma and veins of forewing fulvous ; the 

 radius arising almost three-fourths the way out on the stigma ; ovipositor 



sheaths two-thirds as long as the abdomen 53. terniinalis (Gahan). 



Not combining all the above characters 53. 



53. First abdominal tergite large, base and apex of equal breadth; the second 



tergite short and broad, at least three to four times as broad as long; 



ovipositor sheaths two-thii'ds as long as the abdomen ni. 



First and second abdominal tergites not as above 57. 



54. Posterior femora black 54. femur-niffrum (Provancher). 



Posterior femora mostly pale 55. 



