13. 

 EUMENES ATllICORNIS. 



Order Hymenoptera. Fam. VespacKic Led. 



Type of the Genus Eumenes atricornis Fab. 



EuMENEs Fah., Lat., III. Vespa Linn, 



Antenna- inserted in the centre of the face, approximating, slightly 

 genicuhited, thickest toward their extremities, 12-jointed, the 

 male having a thirteenth joint like a claw, equal in length to the 

 last 3 joints. First and third joints long, second small, (f. I. An- 

 tenna of male.) 



Labrum an elongated triangle, or quadrate broadest at the base, 

 ciliated in front. (2.) 



Mandibles when at rest forming a rostrum or beak, long, narrow, 

 having 3 clefts, which form -4 teeth on the internal edge. (3.) 

 Maxiilce elongated, ciliated, coriaceous towards their apex, cor- 

 neous next the palpi, and at their base. Palpi verv long, (i-joint- 

 ed, first and second joints long, third shorter, 3 last small and 

 slender. (4.) 



Mention oblong, cylindric, contracted above the insertion of the 

 palpi. (5. a.) 



Pa/pilong, 4-jointed, 2 first long and clavate ; third, half the 

 length of second ; the fourth very small. (.">. b.) 

 Lip coriaceous, striated transversely, elongate, dilated at the 

 apex, bilobed, each lobe terminated by a gland (.5. c.) ; a move- 

 able lobe on each side shorter than the lip, dilated at the base, 

 and terminated by a gland. (5. d.) 

 Clj'peus convex?, cordiform, bijid in front. Eyes deeply emarginafe. 

 Ocelli 3, distinct, smooth. Thorax with a triangular piece extend- 

 ing from the anterior margin to the scutellum. Abdomen with the 

 first segment contracted into an arched, elongated peduncle, equal in 

 length to the rest of the abdomen, or with a short funnel-shaped seg- 

 ment, the remaining 6 joints ovate-conic. Superior wings folded 

 when at rest, 3 submarginal cells complete. Tarf^i, first joint equal 

 in length to S following ; Jifth terminated by pulvilli and claws, with 

 a tooth on their internal edge. (8.) Females and Neuters armed with 

 stings. Larvse omnivorous. 



E. ATUicoRMs Fab. Si/st. Piez. 289 17. 



Black, hairy, punctured, a yellow spot between the antennse ; 

 clypcus partly or entirely yellow; anterior margin of thorax, 

 base of the wings, jjoslerior margin of scutellum, ami a spot on 

 each side, yellow ; margin of peduncle, a large spot on eadi side 

 first joint of abdomen (which is campanulate), a broad sinuated 

 margin, and narrower margins to the 2 following joints, yellow. 

 Legs yellow. Thighs black. Wings fuscous. Claw of autenuu 

 yellow. 



Ill the I'dlincts of Mr. Dale and the Author. 



