388 HTMENOPTERA. 



where it is scarcely half the width of the lower part. Legs stout ; the tibiae and tarsi 

 densely covered with stiff fulvous hair ; the femora more sparsely clothed with longer 

 and softer hair ; the anterior coxae, trochanters, and the base of the femora pale 

 testaceous. 



2. Yelicones crassicornis. 



Ferrugineus, capite, antennis pedibusque nigris, ore, coxis trochanteribusque anterioribus testaceis, palpis 



albis ; alia fumatis, nervis stigmateque fuscis. 5 . 

 Long. 8 millim. 



Hdb. Panama, Bugaba 800 to 1500 feet {Champion). 



Antennae stout, shorter than the body, curled at the apex, 34-jointed, closely pilose. 

 Face punctured ; front obliquely striated, a keel running down its centre from the ocelli ; 

 vertex shining, scarcely punctured. Pro- and mesothorax impunctate; scutellum 

 sharply narrowed towards the apex, small, two large fovese at its base ; metathorax 

 obscurely reticulated, with a central keel and two keels on either side. Abdomen not 

 much longer than the thorax, the basal segments punctured ; a keel down the centre of 

 the first and second segments, the keels bifurcated at the base. The body is covered with 

 short pale pile, which is longest on the apex of the abdomen. Legs stout, pilose ; the 

 anterior femora testaceous on the lower side; the anterior tibiae and tarsi fuscous 

 beneath, as are also the middle femora ; the tarsi incline to fuscous. The pronotum 

 in front and the prosternum are blackish. 



J 3. Yelicones melanocephalus. (Tab. XV. fig. 20, $ .) 



Fulvo-testaceus, antennis, capite, pedibus prosterneque nigris ; alis fuscis, nervis nigris. $ . 

 Long. 5 - 5 millim. 



Hdb. Panama, Bugaba 800 to 1500 feet (Champion). 



Antennae stout, the apex curled ; covered with a short fuscous pile. Head very 

 sparsely pilose ; the face rather coarsely punctured ; the front a little depressed over the 

 antennae, a stout keel in the centre with some oblique keels running into it ; the vertex 

 aciculated; the oral region, mandibles (except at the apex), and palpi pale fulvous. 

 Thorax shining, sparsely pilose, finely (but not closely) punctured ; metanotum more 

 strongly punctured, furrowed down the centre, and sparsely covered with long pale hair. 

 Petiole longitudinally striated and punctured, an obscure keel down the side ; the sides 

 distinctly margined. Second segment finely longitudinally striated, punctured at the 

 apex and keeled down the centre; the other segments obscurely punctured. Legs 

 densely pilose ; the four anterior coxae and trochanters fulvous ; the fore tarsi and the 

 hind tibige incline to piceous. The neuration is much as in T. violaceipennis, except 

 that the second cubital cellule is broader at the top. 



