I^TEW ICHNEUMOX-FLIES CUSHMAN 



369 



Wings: Areolet very small, with long petiole; postnervellus broken 

 at middle, nervelliis strongly inclivous, unbroken. 



Abdomen slender, minutely granular, subopaque; first segment 

 without trace of grooves or f oveae, postpetiole nearly twice as broad 

 as petiole; second tergite four times as long as broad at base and 

 much more than twice as broad at apex as at base, spiracles slightly 

 less than three-fifths of way from base to apex; segments beyond 

 third compressed; ovipositor slender, upcurved, sheath a little more 

 than one and a half times as long as first segment. 



Black with abdomen beyond second tergite and the femora largely 

 ferruginous; scape and pedicel in front, mandible, palpi, and tegulae 

 yellow- scape and pedicel piceous above, flagellum blacli; wmgs 

 hyaline, venation blackish; front and middle coxae and trochanters, 

 apices of their femora, and bases of their tibiae yellow, femora other- 

 wise ferruginous and tibiae and tarsi stramineous; hmd coxa black, 

 its apex broadly and trochanter beneath yellow, femur piceoferrugi- 

 nous, tibia and tarsus blackish, the tibia with a trace of yellow at 

 extreme base above, calcaria yellow; first segment entirely black, 

 second black with apical corners ferruginous, other tergites ferrugi- 

 nous more or less blackish above. 



il/«Ze.— Essentially like female. 



Tyfe locality. — Lima, Peru. 



Eost. — Mescinia penielJa Schaus. 



Type.—JJB.'^M. No. 53498. 



Three females and one male reared by Dr. J. Wille under his num- 

 bers 318-30, 45-31, and 226-32. 



Tribe CREMASTINI 



BRACHYSCLEROMA, new genus 



Head very thin, sublenticular, temples very strongly receding, some- 

 times nearly perpendicular to longitudinal axis; ocelli small m both 

 sexes; clypeus more or less distinctly separated from face, apically 

 subacute,' with an oblique impression on each side along margin; malar 

 space long; mandible small, upper tooth longer than lower; antennal 

 scape subcylindrical, hardly thicker than flagellum, apex hardly ob- 

 lique; flagellum setiform, tapering from base to apex, with long, very 

 dense' reclinate pubescence and also with erect verticillate hairs at 

 apex of each joint, all joints short, basal joint shorter than scape; 

 palpi of only moderate length and very slender; maxillae of normal 



length and form. 



Thorax very robust ; mesoscutum precipitate anteriorly, notaulices 

 not or weakly defined; scutellum strongly margined to apex laterally; 

 mesopleuron with a broad, deep, oblique furrow, usually foveolate at 



