284 MEMOIRS OF THE CARNEGIE MUSEUM 



15. Abdomen ovate, shorter than the thorax, the segments subequal ; middle tarsi incrassate. 



Notanisus Walker (type N. versicolor Walk.). 



16. Abdomen sessile 17 



Abdomen petiolate 22 



17. Abdomen elongate, conically produced or acuminate at apex ; postmarginal vein well developed. 18 

 Abdomen long, conic-ovate, ending in a prominent ovipositor, which is dilated into three broad, leaf- 

 like expansions, like a propeller in a naphtha launch. Dinoura Ashmead (type D. auriventris Ashm.). 



18. Scutellum without a transverse grooved line before tip ; head triangular, narrowed anteriorly 21 



Scutellum ivitli a transverse gi'ooved line before the tip ; head with rounded, convex cheeks. 



Pronotum transverse, not large 19 



Pronotum large, almost quadrate Merostenus Walker (type M. phedyma Walk.). 



19. Pronotum very short, visible from above as a fine transverse line 20 



Pronotum transverse Trigonoderus Westwood (type T. princeps Westw.). 



20. Antennae 13-jointed ; middle tibise normal ; metanotum with a sharp median carina. 



Anoglyphis Forster (type A. nubilosa Forst.). 

 Antennse 14-jointed ; middle tibiae much lengthened. Macromesus Walker (type M. amphiretus Wa}^.). 



21. Middle tibise not dilated at apex Platygerrhus Thomson (type P. gracilis Thoms.). 



Middle tibise dilated at apex, their tarsi broad at base Pegopus Forster 



(type Prosopon montanus Walk.). 



22. Scutellum without a transverse grooved line before tip Photi*mus Thomson 



(type P. nuhilosus Thoms.). 



23. Front femora not, or less distinctly, swollen, and never excised dentate beneath 28 



Front femora much swollen, and sometimes excised dentate beneath. 



Pronotum not much narrowed and always wider than long 24 



Pronotum much narrowed and lengthened. 



5'i'oiit femora much swollen but not excised dentate beneath ; abdomen clavate, de- 

 pressed Heydenia Forster. 



Front femora swollen and excised dentate beneath Lycisca Spinola. 



24. Eyes bare 27 



Eyes pubescent. 



Abdomen not carinate along the sides 25 



Abdomen carinate along the sides Epistenia Westwood. 



25. Labrum inconspicuous or hidden 26 



Labrum conspicuous. 



Metathorax with a median carina, the spiracles large, oblong or oval ; flagellum subclavate, 

 densely hairy, the joints of the funicle wider than long Cleonymus Latreille. 



Metathorax luithout a median carina, the spiracles small, rounded; flagellum long, filiform, 

 densely hairy, the joints of the funicle long Micradelus Walker. 



26. Front wings bifasciate or maculate ; marginal vein slender, about twice as long as the stigmal ; pro- 



notum not short ; metanotum with a median carina ; head lenticular, much wider than the thorax. 



Ptinobius Ashmead. 



27. Front wings bifasciate ; marginal vein not longer than the stigmal, the latter long, strongly clavate ; 



pronotum short, transverse, slightly narrowed ; metanotum with a short median carina, the spiracles 



elliptic ; head transverse ; pedicel shorter than the first joint of the funicle. Cheiropachys Westwood. 



Front wings hyaline, not fasciate ; marginal vein longer than the stigmal, the latter not especially long, 



ending in a small knob ; pronotum large, quadrate, w^ell-separated Schizonotus Eatzeberg. 



