172 AMERICAN HYMENOPTERA. 



10. Male, female and worker with scutellum, postscutellum and nietatliorax each 



having two yellow spots OCCideiitaliM. 



Male, female and worker with scutellum and postscutellum only having two 



yellow spots iiifernalis. 



Male, female and worker with scutellum only having two yellow spots. . .12. 



11. The yellow in sinus of eyes connected, or nearly connected with the frontal 



spot gerniaiiiea. 



The yellow in sinus of eyes not connected with the frontal spot, vulgaris. 



12. Second ahdomiual segment bearing only a narrow, apical, yellow border. 



vidua. 

 Second abdominal segment bearing a wide, apical, yellow band, with a deep 

 median black notch, from which two lateral black teeth arise. 



inf'ernaliK. 



13. First abdominal segment entirely dark yellow or brownish Carolina. 



First abdominal segment not dark yellow or brownish 14. 



14. Tibiae and tarsi bright red n]a<-f ariaudi. 



Tibise and tarsi not bright red 15. 



15. Posterior margin of second cubital cell equal to third cuneata. 



Posterior margin of second cubital cell twice the length of the third. 



sulphurea. 



Vespa serripes Fab., V. squamosa Drury and V. tibialis Oliv., are 

 unknown to nie, and the descriptions of them are so incomplete that 

 I cannot place them in the table. I am in receipt of a letter from 

 M. de Saussure in which he writes that Vespa communis Sauss. is the 

 same as V. vulgaris, and V. peiinsylvanica Sauss. is the same as V. 

 germanica, and I have therefore omitted these names as belonging 

 to the synonymy. 



Description of the Species. 



Vespa crabro Linn. 9- — Eyes remote from the mandibles. Head ferru- 

 ginous brown, large, convex, longer than broad, with the tips and inner sides of 

 mandibles, a stripe between the antennse and a spot above the base of each black ; 

 clypeus amber-yellow; antennae brown, with the first three joints brown ferru- 

 ginous. Thorax dark brown, with nearly the whole surface of the prothorax 

 above, the tegulae, and generally the scutellum and a stripe on the postscutellum. 

 ferruginous brown. Abdomen with the first segment dark brown, an irregular 

 stripe on the anterior border not reaching the sides ferruginous brown, and a 

 narrow stripe on the posterior border dull yellow; second segment dark brown, 

 with a broad, apical, yellow border deej^ly indented medially, and with a small, 

 rounded indentation on each side; the remaining segments are yellow, with 

 lateral brown indentations. Legs ferruginous brown, with the coxse, trochanters 

 and base of femora, except a ferruginous spot on the coxae and trochanters, dark 

 brown or black. Wings amber, with the nervures brown. Length 22 mm. 



'^.— Like female, excejjt the second abdominal segment, which has a much 

 narrower yellow border with a shallow median indentation. Length 18 20 mm. 



Worker. — Differs from female only in being smaller. Length 18 20 mm. 



Hab. — Europe, New York (Angus), Maryland (Saussure in litt. ). 



