EUMEXES. 107 



spot below the wing, seutellum, and post-scutel, extremity of 

 the petiole, a large scalloped border on the second segment and 

 the following segments, yellow. Legs yellow, with the thighs 

 in part black. (E. ornatus Sauss.) 

 Hub. Isle of St. Thomas. 



b. Two yellow spots on metathorax. The border of second 

 segment so wide that no black remains but a tricuspid basilar 

 spot. Sometimes there are two yellow smooth spots on the 

 second segment. Two yellow spots appear on the disk of meso- 

 thorax. The clypeus and legs are without black, but often 

 present some ferruginous color. (E. versicolor.) 



Nab. Jamaica. Venezuela. 



c. The pyriform part of abdomen ferruginous, with its segments 

 more or less distinctly bordered with yellow. (E. abdominal la.) 



Hab. Jamaica. Cuba. 



There is often a yellow line on the scape of the antennae and 

 the yellow original markings reappear on the ferruginous color 

 of the thorax. {E. jncta.) 



Hab. Saint Domingo. 



d. Thorax almost entirely yellow, presenting only a black spot 

 on the extremity of the disk of the mesothorax, a band before the 

 seutellum, and an oblique one on the flanks. Abdomen ferrugi- 

 nous; the petiole black, bordered with yellow or orange, with the 

 base black and the border yellow. (E. colona.) 



Hab. Hayti. Jamaica. 



e. The whole insect ferruginous, a little varied with yellow on 

 the head and thorax, not offering more of black than the thoracic 

 sutures, and a frontal and vertical line. 



Hab. Cuba. 



Its form also varies. Specimens which I have taken at St. 

 Thomas, are stout; they have the petiole wide; those which I 

 have captured in Jamaica are slender and lithe ; their petiole 

 is remarkably narrower. 



In conclusion ; these variations are not only dependent upon 

 the localities, but probably, also, on the seasons and diverse for- 

 tuitous circumstances. 



50. E. canaliculars Oliv. 



Vespa canaliculata Oj.iy. Eucyc. Meth. VI, 672 (1791). 

 Vespa diadema Fabr. Ent. S. Suppl. 263 (1798); S. P. 285 (Eumeves). 

 Eumenvs canaliculata Sauss. Vespid. I, 68, 56; pi. xi, fig. 5. — DeGeer 

 Mem. Ins. Ill, 579, Tab. 29, fig. 3. 



