AMERICAN HYMEXOPTERA. 373 



. Hab.—CaWao, Peru (I. I. Walker). 



As I am not sure if this species can be referred to Callicryptus 

 (Ashmead, Proc. U. S. Mus., 1900, p. 43), I give here a generic 

 description of it. It certainly appears to be related to "Cryptus' 

 fusco fasciatus Brulle, from Peru. 



Wings yellowish, maculate; the radial cellule elongate; the areolet moderate, 

 the sides parallel, hardly converging ahove; the transverse median nervure in 

 hind wing broken shortly below the middle. Parapsidal furrows obsolete. The 

 basal keel on the median segment obsolete, but represented by a distinct, trans- 

 verse, wide furrow; the 2nd keel is indistinct in the middle, more distinct later- 

 ally ; there are no teeth ; the spiracles are elongate. Abdominal petiole longish, 

 the post-petiole not widely dilated ; the spiracles are placed near the base of the 

 apical third of the petiole ; those on the 2nd segment near the middle. The legs 

 are moderately stout ; the tarsi are spineless, their 4th joint is incised deeply; 

 the transverse median nervure in fore wings is received shortly behind the trans- 

 verse basal. Malar space long. Apex of clypeus transverse, obliquely depressed ; 

 the lal)rum large, rounded at the apex. Antenuse stout, the basal joints of the 

 flagellum rufous; the basal two joints fully four times longer than thick; the 

 1st, if anything, longer than the 2nd. There is no stump of a nervure on the 

 cubital- disco nervure. The pleural keel on the median segment is distinct. 



STILPINI. 

 JETHSIJRA gen. nov. 



Basal half of mesosternum bordered by a wide, deep, curved fur- 

 row. Median segment indistinctly areolated at the base, the three 

 apical arese are distinct ; the base of the segment is slightly de- 

 pressed, the spiracles small, indistinct, longer than broad. Antennae 

 short, thick, dilated beyond the middle, the basal joints of the flagel- 

 lum distinctly longer than broad. Temples large, the occiput roundly 

 incised. Malar space moderately large. Face roundly dilated in the 

 centre and separated from the clypfeus, which has its apex rounded. 

 Labrum hidden. Mandibles with a large upper and a minute lower 

 tooth. Scutellum flat. The median segment, at the apex on either 

 side, bears a leaf like expansion. The meta-pleural keel is indis- 

 tinct ; on the lower part is a wide furrow bearing some keels on the 

 apex. Areolet 5 angled, narrowed on the top, the cubital nervure 

 is obsolete beyond it ; the transverse basal nervure is interstitial ; 

 the stigma is large, obliquely narrowed towards the middle, on both 

 sides below. Wings short, not reaching beyond the apex of the 4th 

 abdominal segment. Legs short, stout, the apex of the hinder femora 

 hardly reaching to the apex of the 3rd abdominal segment. Petiole 

 long, rather slender, becoming gradually widened from the middle 



TRANS. AM. ENT. SOC, XXVIII. OCTOBER, 1902. 



