J 



xi 



414 HYMENOPTEKA. 



Antennae more than twice the length of the body, over 100-jointed, microscopically 

 pilose, the third joint longer than the fourth. Pleurae and metathorax covered with a 

 fulvous pile ; a stout keel down the centre of the metanotum. Petiole of nearly equal 

 breadth, slightly tuberculate before the middle. Neuration nearly as in the preceding 

 species. 



3. Alysia longicornis. (Tab. XVI. fig. 22, <$ .) 



Nigra, abdomine rufo-testaceo ; alis fumatis, basi flavo-hyalinis. S 2 • 

 Long. 12 millim. ; terebra 1 millim. 



Eab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion). 



Antennae more than twice the length of the body, over 100-jointed, microscopically 

 pilose. Face sparsely covered with black hair. Pleurae and breast with thicker and 

 shorter fulvous hair ; the metathorax with especially long hair. Metanotum with a 

 stout keel, bifurcated at the apex, down the centre. Petiole dilated laterally on the 

 lower side, the raised part being of nearly equal breadth throughout, and with a narrow 

 furrow along the sides ; depressed at the base. The apex of the abdomen is blunt. 

 Wings: the recurrent nervure received in the second cubital cellule; the pobrachial 

 transverse nervure interstitial ; the first branch of the radial nervure half the length of 

 the first transverse cubital nervure, the latter straight, as is also the basal nervure. 



4. Alysia erythrogaster. (Tab. XVI. fig. 25, s .) 



Mgra, abdomine rufo ; alis fusco-violaceis. <S $ . 

 Long. 6 millim. ; terebra 5 millim. 



Eab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 



Antennae 58-jointed, the flagellum rather densely microscopically pilose; scarcely 

 twice the length of the body, the third joint shorter than the fourth. Metanotum with 

 a double keel, united at the base, running down the centre. Abdomen a little shorter 

 than the head and thorax united. Petiole subvertical, deeply excavated at the base, 

 the central raised part keeled laterally, the keels reaching to the apex. Wings : first 

 transverse cubital nervure but slightly bent, not elbowed ; the recurrent nervure nearly 

 interstitial ; the pobrachial transverse nervure received at a greater distance from the 

 latter than is the transverse cubital nervure from the stigma; the cubital nervure distinctly 

 curved before the middle of the first cubital cellule ; the first transverse cubital nervure 

 a little more than one half longer than the second. 



5. Alysia championi. (Tab. XVII. fig. 3, s .) 



Nigra, nitida, capite, mesonoto abdominisque basi rufis ; alis fumatis. S • 

 Long. 7 millim. 



Eab. Mexico, Orizaba (BilimeJc). 



