218 PROCEEDINGS OF THE ACADEMY OP 



16. G. not at a Fabr., Syst. El., i. 488. Oliv. Ent., vi. 637, (Nos. 93, 

 38,) pi. 3.%. 45. 



Also widely diffused in the Atlantic district. Of the same form and color 

 as the preceding, but the first, third and fourth black stripes of the elytra 

 reach neither the base nor the tip, and the second one is very short, extend- 

 ing from the base only about one-sixth the length. The elytra are rather 

 more finely punctured. 



The last ventral segment is transversely impressed each side, and in the 

 male is acutely but not deeply emarginate at tip. 



17. G. integra, elongata, minus convexa, supra subtiliter at dense 

 pubescens, sordile testacea subopaca, thorace brevi, lateribus rotundatis, an- 

 gulis baud prominulis, dense subtiliter punctato vix canaliculato, utrinque 

 vage impresso, vitta dorsali punctoque utrinque discoidali nigris, elytris dense 

 punctatis, punctis postice subtilioribus, vittis utrinque quatuor angustis nigris, 

 quarum secunda et quarta integris, apice conjunctis ; tarsis fuscis, antennis 

 piceis basi testaceo-maculatis. Long. *22. 



Two specimens ; Pennsylvania. 



More elongated and less convex than the two preceding species, with the 

 vittse of the elytra differently arranged ; the subsutural one reaches neither 

 the base nor the tip ; the second and fourth commence at the base and unite 

 near the tip ; the third is a little abbreviated behind. 



The fifth ventral segment of the male is deeply and acutely emarginate. 



Group IV. 



A European species, introduced upon this continent, represents this group 

 in our fauna. The body is oval, very slightly convex, densely rather 

 finely punctured and pubescent above. The lateral margin of the elytra is 

 acute and the marginal sulcus, as in Group III., is not removed from the 

 margin ; the inferior margin of the epipleurse becomes obsolete near the tip, 

 without, however, uniting with the upper margin, as it does in those genera 

 in which the epipleurre do not extend to the tip. 



18. G. xanthomelasna Duftschm. Redt., Fauna Austr., 2d ed., 927, 

 &c, &c. 



G. calmarimsist Fabr., Syst. El., ii. 488; Harris, Ins. Inj. Veg., 2d ed., 

 124 ; Fitch, Fifth Report on Noxious Insects of New York, No. 346. 



G. gelatinaricB Fabr., Syst. El. i. 490 ; Oliv. Ent., vi. 32, (No. 93, 30,) pi. 3, 

 fig. 37 ; (a dark colored variety.) 



Maryland and Pennsylvania. Injurious to elm trees by the larvte eating 

 the young leaves. The fifth ventral segment of the male is deeply and acutely 

 emarginate. 



Group V. 



Two elongate slightly convex species, found near the shores of the ocean, 

 constitute this group. They are densely punctured above and moderately 

 pubescent ; the thorax is rounded on the sides, with the angles not at all pro- 

 minent ; the lateral margin of the elytra is obtuse, and but slightly promi- 

 nent, becoming obsolete near the tip, and scarcely uniting with the inferior 

 margin of the epipleune. The marginal sulcus is very narrow. 



19. G. maritima, elongata, testacea, fusca, vel nigra, capite rude 

 punctato, thorace brevi antrorsum angustato, lateribus late rotundatis, an- 

 gulis baud prominulis, basi utriuque oblique subtruncato, disco parum con- 

 vexo, fortiter punctato, breviter canaliculato, utrinque vage foveato, angulis 

 posticis obtusis explanatis, elytris dense subtilius punctatis, pube brevi pal- 

 lida minus dense vestitis. Long. *30. 



Abundant along the the sea coast from New York to Florida. Intermediate 



[Oct. 



