MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 349 



and it has not since, to my knowledge, been described. In his remarks 

 he has the following to say respecting the genus: 



If we consider, alone, the shape of the sintennio, we have undoubtedly in the genns 

 Diphora the most remarkable form in he Belytoidie. Not only does the scape attaiu 

 a considerable length, but the first ilagellar joint is also as long as the scape, while 

 the other joints, with the exception of the last, are very short, being even broader 

 than long, on account of which the flagelluni hasanioniliform appeaiiance; we might 

 therefore easily be led to the conclusion that the autenniB had a double ilagcllum. 

 The mesonotal furrows are deep and distinct. The abdomen is composed of three 

 segments, the petiole is short and stout, the second segment very large, while the 

 third, which is separated from the second by a distinct suture, attains the length of 

 the petiole, and from its apex projects a short point or nipple, as if from a tube. 

 The marginal cell of the wings is completely closed; the marginal vein very short, 

 even shorter than the stigmal branch, which forms a very acute angle. The post- 

 marginal vein extends but a short distance beyond the apex of the marginal cell. 

 The marginal cell is strongly elongated aud narrow, the radius of which has a short 

 blurred and but slightly curved stump, which, in its extension, does not cross the 

 basal nervure, 



LEPTORHAPTUS Fi.rster. 

 Hym. Stud., ii, p. 131. (1856.) 



(Type L, ahbreviatusVuist.) 



Head transverse, the occiput slightly impressed at the middle, not 

 or indistinctly margined; ocelli 3, prominent, close together in a tri- 

 angle; eyes rounded, hairy. 



Antennae inserted on a frontal prominence, long, filiform, cylindrical 

 in both sexes, seldom a little thickened toward tips ; in 9 15-jointed, the 

 scape very long, slender, reaching far above the ocelli, as long as the 

 first two or tbree flagellar joints t<igether, the pedicel oval, the first 

 flagellar joint the longest, the following gradually shortening, the last 

 being a little longer than the penultimate; in ^ 14-jointed, the first 

 flagellar joint nearly, or quite, as long as the scape, strongly excised at 

 base. 



Thorax ovate, the mesonotum with two profound furrows, the scutel- 

 lum convex, broadly foveated across the base, the metathorax longi- 

 tudinally carinated. 



Front wings with the marginal vein reaching the costa at about the 

 middle of the wing, a marginal vein as long as, or a little longer than, the 

 triangular closed marginal cell, the latter with a backward directed 

 vein from the stigmal, and a distinct basal cell. 



Abdomen longer than the head and thorax together, composed 

 apparently of but 3 segments, the petiole being unusually h)ng, body 

 of 5 conic, ovate, o{$ pear-shaped. 



Legs long, slender, pilose, or pubescent, the tibial spurs more strongly 

 developed than in Miota. 



