WALSH DESCRIPTIONS OF N. AM. HYMENOPTERA. I 23 



ra, and sometimes in the 4 front legs their upper surface also, and always 

 all the tibia? and tarsi, dull pale rufous, tf O. Claws simple. 6. The wings 

 o* ? ars subhyaline, tinged more or less with smoky yellow; veins and 

 stigma black. Areolet rhomboidal, the 2d recurrent vein entering it rather 

 nearer the base than the tip of the wing, the peduncle about $ as long as 

 the rhomb, and the bulla CD without any black dot. Length o* .37-50, 

 § -35--45 inch. Front wing ^.29-37, $ 28-36 inch. Ovipos. .n-.i6inch. 



Two % , four $ . One $ was captured Mar. 4, and one ? cap- 

 tured Ap. 19, and another 9 was bred from a small lepidopterous 

 pupa, inside the split integument of which it had spun its white 

 cocoon. Distinct from all the preceding by its immaculate black 

 body, and from all but pictiventris and breviventris by the short 

 intermediate joints of its abdomen. 



[This belongs to the genus Arenetra, Holmgren. — Cresson.] 



Genus GLYPTA, Gravenhorst. 



In this well-marked genus the bulla? are but three in number, 

 C, D, and E ; and sometimes but two, CD and E, C and D being 

 usually separated only by a minute black dot, which often ter- 

 minates in the usual stump of a vein, while occasionally, but only 

 in those species where the salient angle of the biangulated 2d 

 recurrent vein is obsolete, the black dot is obsolete and C and D 

 become completely confluent. C and D are located well forwards 

 on their vein, and E pretty close to the angle of its vein. In both 

 those two species of which I possess numerous specimens, the 

 coloration, especially that of the legs, is very constant. In one 

 of the two the size is also remarkably constant, while in the other 

 it varies considerably. On the whole, Glypta may be considered 

 as a pretty constant genus The colors are black and rufous with 

 more or less white markings. 



Section i. — Hind legs not annulate -with white. Abdomen 

 Hack. Clypcus white. 



Glypta simplicipes, [Walsh, Trans. Am. Ent. Soc. iii. p. 156.] — $.— 

 Black. Head rather coarsely punctate, sparsely on the vertex which is sub- 

 polished, and more closely on the face which is subpubescent and opaque. 

 Face with a wide, flat, discoidal tubercle, more obvious in some specimens 

 than in others, but always opaque and sculptured like the face. Clypeus 

 and mandibles, except their teeth, white. Labrum piceous, occasionally 

 rufous. Palpi very pale rufous. Antenna; % as long as the body, brown- 

 black, dull rufous beneath except the scape. Thorax subopaque, rather 

 coarsely punctate ; metathorax more coarsely rugoso-punctate and with 

 the carina; distinct. Tegula;, an acutely pointed line under the humeral 



