Ilymenopterous Genua Tipliia. 129 



far apart, tlie sides of tlie segment strongly striated. Abdo- 

 men shining, the two basal segments sparsely punctured, the 

 third and fourth more finely and closely punctured at the base, 

 sparsely at the apex, the fifth closely and rather finely punc- 

 tured, the epipygium punctured rugose at the bise, the apical 

 half smooth. The stigma is about twice as long as broad, 

 obliquely truncate at the apex, the lower margin straight, 

 not rounded. 



Black ; the flagellum fusco-ferruginous, paler at tlie apex ; 

 the spines of the tibiae fuscous, those of the tarsi paler ; the 

 apex of the abdominal segments and of the pronotum very 

 narrowly pale testaceous, the apex of the [)ygidium narrowly- 

 ferruginous. Wings hyaline, clouded in the radial cell, 

 nervures fusco-ferruginous, the stigma fuscous. Pubescence 

 whitish. Mandibles fusco-ferruginous. 



Length 12 mm. 



Hah. Argentina [Burmeister) . Type in B. 51. 



Very near T. azteca, Cam., from Mexico, but in that insect 

 the head is rather larger and broader, the posterior ocelli 

 nearer together, the scape of the antennae a little l:)ng"er, and 

 the stigma much narrower. Tlie punctures in T. azteca are 

 larger and not so close. 



Tiphia elongata, sp. n. 



? . Glypeus finely punctured at the base, broadly smooth 

 and shining at the apex ; the apical margin shallowly and 

 rather widely emarginate in the middle. Front coarsely, 

 but not very closely punctured, the vertex and the space 

 round the ocelli shining and very sparsely punctured ; scape 

 shining, rather closely punctured, clothed beneath with long 

 fulvous hairs, the two basal joints of the flagellum shining, 

 the remainder covered with fine down. Pronotum sparsely 

 punctured at the base, the posterior margin broadly smooth 

 and shining, the propleurse smooth and shining above, very 

 finely striated below; the mesopleurge shining and very 

 sparsely punctured. Mesonotum sparsely jjuiictured, the 

 tegulffi finely punctured on the inner margin ; scutellum and 

 postscutellum with a few scattered punctures. Median seg- 

 ment very long, much longer than broad, almost smooth, but 

 not highly polished ; the three median carinte nearly parallel, 

 the outer ones less than half as far again from eacli other at 

 the base as at the apex, the surface of the posterior trun- 

 cation irregularly rugulose, the sides of the segment finely 

 obliquely striated. Abdomen shining; thj two basal seg- 

 ments almost entirely smooth, the first with a transverse row 

 Ann. iL May. N. Hist. Ser. 8. Vol ii. 'J 



