106 HYMENOPTERA uF AMERICA. [PART T 



This division is more distinct than the preceding-, but, never- 

 theless, it joins itself to Division Alpha by the E. Wagnerianus 

 and flavicornis. 



49. E. alHloniilialis Decry. — Validus, gracilis; corpore velntino; 

 clypeo a pice parum emargiuato, deutibus rotundatis; petiolo deplanato, 

 sulco partito; alis ferrugineis ; anteunis ferrugineis, ap : ce supra uigris. 

 (Coloruni distributio inaxinie variat in lioc insecto, a corpore omnino 

 ferrngineo, ad nigro- et flavo-variegatum : varietas maxime abboirens 

 videtur esse thorace nigro, pronoto et scute: lis flavis. Saepius peiiolus 

 niger perruauet, margine flavo. et abdouiine ferrngineo.) 9 o • 

 Total length. 21 mm. ; wing. 17 mm. 



Sphex abdominalis Drcry. II lust, of Ins. I. tab. 45. fig. 2 (1770). 



Vespa attenuata Oliv. Eneyc. Meth. VI. 674 (1791). — Fabr. Lnt. Syst. 



II, 2^2. 

 Sjthex extensa Christ, Hymen, ibid, XXXII. fig. 7. 

 Polistes attenuates Fabr. S. P. 279 (1804). 

 Eumenes abdominalis Sauss. Vespides, I, 70. 58, et in La Sagra, Hist, de 



Cuba Ins. 768. — Cbesson, Hymen, of Cuba, Proc. Ent. Soc. Philad. 



IV, 1865, 157. 

 Eumenes colona Sacss. Vespides, I, 70, 59 (1852), et in La Sagra, Hist, de 



Cuba Ins. 768. pi. 19, fig. 1. 

 Eumenes versicolor Sacss. ibid. I. 71, 60. 

 Eumenes ornatus Sauss. Vespides, III, 147, 35, pi. viii, fig. 3 (1854), et 



in La Sagra Hist, de Cuba Ins. 765. 

 Eumenes picta Smith, Catal. Brit. Mas. Vespidae, 32. 79 (1857). 



9 % . Large. Mandibles forming a long beak by their union, 

 presenting two lines of punctures. Clypeus a little emarginate 

 at its extremity; the notch placed between two rounded projec- 

 tions. Head and thorax punctured, velvety. The angles of pro- 

 thorax a little salient. Petiole arcuate, shining; of the length 

 of the thorax ; divided by a groove. The remainder of the 

 abdomen pyriform, almost fusiform, subvelvety, or even silky. 

 The body clothed with a gray pile. 



Antennae ferruginous, with the extremity of the scape of % 

 ornamented with a yellow line. Mandibles ferruginous. Wings 

 transparent, of a yellow ferruginous along the side. Nothing is 

 more variable than the distribution of the colors on the remainder 

 of the body. 



One can arrange the following principal varieties : — 



a. Color in the main black ; a frontal spot, border of the orbits, 

 an interrupted transverse line before the ocelli and clypeus, yellow ; 

 this last marked with a black spot at its summit. Prothorax, a 



