38 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii. 



Mctiuiotnni nuirc or less ilistiiicfly arcolated, the surface irregularly nyclose. 



(241) Pezomachui^ (Iravenhorst. 

 Metathorax exareolated, witli only the apical transverse carina present, the 



surface coriaceous or granulate (241) Pezomachus Gravenhorst. 



Transverse median nervure straight, not broken, the subcliscoidal nervure 

 absent (243) Hemimnclmii Eatzeburg. 



Tribe V. HEM IGASTERINI. 



This group is proposed for two genera differing from any in the 

 preceding tribes in having a narrow, lanceolate stigma. In this char- 

 acter it comes nearest to the two tribes which are to follow, the Ci'yjjtmi 

 and the Mes(Menhvi, but it is at once separated from them by the 

 areolet in the front wings being wholly a))sent. 



The marginal cell is rather long, extending almost to the tip of the 

 wing; the first transverse cubitus is short but distinct; the second 

 recurrent neryure joins the cu})itus beyond this vein; while the subdis- 

 coidal neryure originates from above the middle of the discoidal 

 neryure. 



The two genera falling here may be separated as follows: 



TABLE OF CiENEKA. 



Hind wings with the transverse median nervure straight, not broken, the subdis- 



coidal nervure wanting 2 



Hind wings \\ith the transverse median nervure angularly broken; ovipositor short, 

 less than half the length of the abdomen; metathorax areo- 



lated (244) HenugaKter Brulle. 



2. Mesonotal furrows more or less distinct; metathorax incomi^letely arcolated; 

 ovi])Ositor as long as or longer than the abdomen. 



(245) Macmgastn- i^.rulle. 



Tribe VI. CRYPTINI. 



1868. Cryptoidiv, Family 2(i, F()Rstku, N'erli. d. naturli. \vr. \n-. Kheiul.. XXV, 



\y\). 144 and 186. 

 1873. Ct-ypthtH, Tribus (part), Thomson, Opus. Ent., V, p. 468. 

 1894. Crypt i 111, Tribe IV, Ashmead, Proc. Ent. 8oc. Wash., Ill, p. 278. 

 1900. Crypthii, Tribe V, Ashmead, Smith's Insects of New Jersey, p. 570. 



To this tribe ])elong the genuine C'ry})tines distinguished ])y the nar- 

 row lanceolate stigma and the distinct, usually pentagonal, areolet of the 

 front wings, although this sometimes appears quadrate from having 

 the two transverse cubiti straight and parallel, or nearly. 



In addition to the shape of the stigmu, it is further distinguished 

 from the other tribes previously defined, except the Pez(jiiiachlm., by 

 metathoracic characters. The metanotum, except sometimes with an 

 areola, is exareolated, and is without distinct longitudinal carinje, or at 

 the most the pleural carina^ are alone present, the lateral longitudinal 

 carinas always absent, its disk being simple, without cariiue, or with 

 one or two transverse carina^. 



