88 Bulletin of the Brooklyn Entomological Society Vol. XI 



venation. Head and thorax finely, densely punctate, the thorax with 

 sparse, small setigerous punctures ; cross-suture of scutellum convexed a 

 little at meson, the convexity distad. Propodeum with the spiracle small, 

 round, central, the median carina paired, delicate; short striae from the 

 cephalic margin of the propodeum, the latter scaly, plane otherwise. 

 Abdomen from above globular, depressed, much keeled beneath, its second 

 segment occupying over a third of the surface, slightly incised at meson 

 of caudal margin, the petiole distinct, wider than long. Postmarginal vein 

 much longer than the stigmal, the knob of the latter moderate in size. 

 Clypeus concave, its lateral end notched. Cheeks very short, not half the 

 length of the eyes by far, the 13-jointed antennae inserted distinctly below 

 the middle of the face but above the ventral ends of the eyes ; funicle i 

 shorter than the pedicel, a little longer than wide, 6 wider than long; 

 two ring-joints. Mandibles 4-dentate. Club, without a terminal nipple. 



Resembles Trydymus aureipes but is much less brassy, has a short 

 petiole, the propodeum is plane, its spiracle round and central and the 

 abdomen is shorter, not wholly depressed and so on. 



From one female, Glenndale, Prince George Co., Md. 



Type: Catalogue No. 20,312, U. S. N. M., the female on a tag, the head 

 and caudal legs on a slide. 



There are five females in the U. S. National Museum from 

 Jacksonville, Fla. 



PIRENE MARYLANDENSIS N. SP. (Chalcidoid Hymenoptera). 



By a. a. Girault, Glenndale, Md. 



From the woods, June 12, 1916. 



Female. — The same as marylandicus Girault but the extruded part of 

 the ovipositor is somewhat shorter and the antennae, are entirely different 

 both in color and shape, besides bearing two very short, thin ring-joints : 

 The scape is all black ; f unicles 1-2 are suffused with yellowish ; the funicle 

 joints are all subquadrate, 5 largest, twice the size of i.; the club lacks the 

 small terminal nipple; and the tips of the tibiae are but obscurely pale. 

 Otherwise the same. Types compared. Clypeus as in Trydymus. 



From one female, Glenndale, Prince George Co., Md. 



Type: Catalogue No. 20,316, U. S. N. M., the female on a tag, the head 

 on a slide. 



The species marylandicus bears one very thin ring- joint. The 

 scutellum in both bears a pitted but delicate cross-suture near 

 apex. 



