I30 TRANS. ST. LOUIS ACAD. SCIENCE. 



tennae brown-black above, dull rufous below except the 1st joint which is 

 black tipped below with white. Thorax sparsely and very finely punc- 

 tate, polished, the carina of the metathorax obsolete. General color a 

 pale bright rufous. Tegular white; lateral lobe of the mesonotum with 

 a black vitta which occupies its disk and is edged internally by a white 

 line, the terminal J of the lobe white and confluent with a broad white 

 vitta which extends broadly below, and very narrowly above the humeral 

 suture to its tip; middle lobe of the mesonotum with its terminal ? black. 

 Scutel white at its tip. with a round, discoidal, black spot on its highest 

 part. Lower surface of the sternum with its medial suture black in front, 

 and a small blackish spot behind the anterior acetabulum. Metathorax 

 black above, laterally white with a black line on the anterior submargin ; 

 a curved, white, capillary line, confluent in front with a transversely ob- 

 long white spot behind the scutel, extends from the origin of one hind 

 wing round the tip of the scutel to the origin of the other; and there is a 

 transverse white line on the upper edge of the posterior declivity of the 

 metathorax. Abdomen black, subpolished, with fine but not dense punc- 

 tures ; joint 1 longer by \ than wide and twice as wide behind as before, 

 with the usual carinas obsolete, but with the same oblique, lateral striae as 

 joints 2-5; hind and lateral edge of 1-7 conspicuously white. Ovipositor 

 h as long as the body, rufous ; the sheaths black, basally h, wider than the 

 last tarsal joint of the hind leg, and tapered to the tip, which is obtuse, 

 so as to be there of the same width as that joint. Venter whitish. Legs 

 white. The 4 front legs with their femora very pale rufous. The hind 

 legs, with the basal § of their coxae and a lateral spot on the basal trochan- 

 ter, black ; femora bright pale rufous, with a basal cloud and their extreme 

 tip, except the white knees, black; tibiae with their second \ laterally and 

 their terminal \ all round, black ; tarsi dusky, except the basal I of joint 1 . 

 Wings subhyaline; veins black; stigma black, basally pale rufous: the 

 2d recurrent vein with its salient angle obsolete, and the bullae C and D 

 confluent and smaller than usual. Length $ .21 inch. Front wing $.18 

 inch. Ovipos. .10 inch. 



One ? ; c? unknown. This is one of the loveliest ichneumon- 

 flies known to me, the black, red and white colors being most 

 artistically arranged, so as to produce very striking contrasts. 

 Entirely distinct from all other N. A. Glypta known to me by 

 the banded abdomen. 



Genus PIMPLA, Fabr, 

 This very extensive genus will probably be eventually subdi- 

 vided into two or more genera. At all events melanocephala, 

 Brulle, with its pale rufous body, its subpentagonal areolet, its 

 well-developed metathoracic carina?, its long 1st abdominal joint, 

 and its robust legs, is very unlike any of the species that here 

 follow it. Remarkable sexual variations in the structure of the 



