BY R. E. TURNER. 609 



ElRONE CELSISSIMA, Sp.n. 



<J. Niger; mandibulis, clypeo, antennis articulis 4 apicalibus, 

 pronoto macula magna utrinque, scutello macula magna mediana 

 antice trilobata, femoribusque macula apicali flavis ; pedibus 

 pallide ferrugineis llavo intaminatis : segmentis abdominalibus 

 secundo, tertio, quartoque totis, primo apice, quinto basi, septi- 

 moque apice rufo-ferrugineis; alis hyalinis, venis nigris. Long. 

 15 mm. 



Var. abdomine nigro, segmento septimo apice solo rufo-ferru- 

 gineo. 



£. Rufo-castanea ; abdomine bruneo, gracillimo, subcylindrico. 

 Long. 9 mm. 



(J. Clypeus convex, depressed and truncate at the apex; man- 

 dibles stout, strongly bidentate at the apex. Head not produced 

 behind the eyes; third joint of the flagellum a little longer than the 

 first and second combined. Head very minutely and closely punc- 

 tured ; the posterior ocelli twice as far from the eyes as from each 

 other. Pronotum strongly rounded at the anterior angles, the 

 anterior margin raised. Mesonotum closely, scutellum less closely 

 punctured with a transverse, coarsely punctured groove at the base, 

 truncate at the apex; postscutellum shining and almost smooth. 

 Median segment rounded, almost smooth, finely rugulose on the 

 sides. Abdomen fusiform, shining, very sparsely punctured ; hypo- 

 pygium subtruncate, with an apical fringe of fulvous hairs. Second 

 and third abscissae of the radius about equal in length; second 

 recurrent nervure received at the middle of the third cubital cell: 

 the subdivision of the first cubital cell only indicated by a scar. 



9. Head rectangular, a little broader than long, smooth and 

 shining, with a short longitudinal sulcus between the antenna?. 

 Thorax and median segment smooth and shining; the pronotum 

 much narrower than the head, about one-third longer than broad, a 

 little narrowed anteriorly ; scutellum small, narrower than the pro- 

 notum, very little larger than the dorsal surface of the mesopleura? ; 

 median segment slightly longer than the pronotum and scutellum 

 combined, narrow at the base, nearly twice as wide at the apex. 

 Abdomen shining, with a few small scattered punctures, very slen- 

 der, narrowed at the extremities; sixth dorsal segment pointed. 

 45 



