HYMENOPTERA. J5 



Viated longitudinal lines on the mesothorax, an obscure spot on 

 each side of the scutellum and the post-scutellum, ferruginous ; 

 the anterior tibia3 and tarsi in front, and the tips of the joints of 

 the two posterior pairs, ferruginous ; the wings flavo-hyaline ; 

 the metathorax with a deep longitudinal impression in the middle, 

 and covered with a fine changeable pile. The second segment of 

 the abdomen slightly wrinkled transversely on the disk. 



Hab. Mexico. 



This insect is placed with some hesitation in the genus Pachy- 

 menes ; but the parts of the mouth cannot be examined : a single 

 example only has been obtained. 



Genus 10. SYNAGRIS. 



Vespa, pt., Linn. Syst. Nat. i. 951 (1766). 

 Synagris, Latr. Gen. Crust, et Ins. iv. 135 (1804). 

 Apis, pt., Drury, Illustr. Exot. Ins. ii. 



1. SYNAGRIS CALIDA. B.M. 



Vespa calida, Linn. Syst. Nat. i. 952. 27. 



Fabr. Syst. Ent. 366. 18; Spec. Ins. i. 462; Mant. Ins. i. 

 289. 27 ; Ent. Syst. ii. 262. 33; Syst. Piez. 259. 25. 



Christ. Hym. 225. 



Oliv. Encycl. Meth. vi. 683. 



Gmelin, Ed. Linn. v. p. 2759. 



Vespa carbonaria, De Geer, Ins. vii. 607. t. 45. f. 9. 

 Vespa Capensis, Linn. Syst. Nat. i. 952. 22. 



Gmelin, Ed. Linn. v. p. 2758. 22. 



Muell. Ed. Linn. Ins. ii. 887. 27. 



Vespa (Crabro) microrrhcea, Christ. Hym. 218. t. 18. f. . 

 Vespa spiniventris, Illig. Mag. i. 887. 27. 

 Synagris calida, Palis. deBeauv. Ins. Afr. et Amer. 260. t, 10. f.f> 



St. Farg. Encycl. Meth. x. 510. 2; Hym. ii. 594. 4. 



Guer. Icon. Eegn. An. 446. t. 72. f. 3 ; Voy. Abyss. Lefeb. 

 vi. 362; Reiche & Fairm. Voy. de Ferret et Galini&r, 452 

 t. 29. f. 7, 8 <? . 



Sauss. Mon. Guepes Sol. 79. 1. 



Hab. Africa. 



2. SYNAGRIS DENTATA. 



Synagris dentata, Sauss. Mon. Guepes Sol. SO. 2-. 

 Hab. Africa (Senegal). 



