EETANISIA. 299 



EETANISIA. 



Head as broad as the mesonotum, about one half broader than long. Clypeus almost 

 transverse at the apex, but with the sides rounded ; labrum small, rounded. Eyes not 

 incised on the inner side. Parapsidal furrows deep and wide, reaching nearly to the 

 scutellar fovea, which is wide and deep. Scutellum longer than broad, not much ele- 

 vated, narrowed towards the apex, which is rounded ; the sides are keeled. Metathorax 

 gradually sloping to the apex, longish, with more or less distinct arese. Abdomen not 

 very much longer than the head and thorax united, becoming gradually dilated to the 

 fifth segment. Hind legs very long ; the coxae longer than the trochanters, the tibiae 

 nearly as long as the coxae, trochanters, and femora united ; the tarsi a little shorter than 

 the tibiae ; the hind tibiae have two short, thick spurs, the anterior pair a longer and 

 curved one. The metatarsus is scarcely twice the length of the next joint ; and the 

 basal joint of the anterior tarsi is curved at the base. 



In this genus the first cubital cellule receives both the recurrent nervures, and there- 

 fore agrees with Thyreodon, Opthion, JSTototrachys, Ojvhiopterus, and Agathophiona. From 

 Thyreodon it may be known by the abdomen not being strongly compressed laterally, 

 the much longer legs and antennae, the eyes entire, and the claws not pectinated ; from 

 -Nototrachys by the long antennae and the shining mesonotum ; from Ophion by the 

 abdomen not being compressed, the eyes entire, and the non-pectinated claws ; from 

 Ophiopterus by the very long antennae and legs and the dilated abdomen ; and from 

 Agathophiona by the normal length of the labium, the long antennae, the much longer 

 legs, and the much shorter, more dilated and thickened abdomen ; and from all five by 

 the very deep parapsidal furrows. 



The antennae in the male (the only sex known) are longer than the body ; the joints 

 contracted in the middle, dilated at the base and apex ; the third joint about one fourth 

 longer than the succeeding ones ; towards the apex the joints become very slightly 

 narrowed. 



l. Eetanisia facialis. (Tab. xil. fig. 10.) 



Nigra ; scapo antennarum subtus, facie, ore, orbitis, pedibus anterioribus pro parte apiceque tarsorum posti- 



corum, flavis ; alis byalinis, apice fumatis, nervis nigris. J • 

 Long, fere 15 millim. 



Hab. Guatemala, Purula {Champion). 



Head strongly punctured ; a triangular projection below the antennae, its centre almost 

 carinated, the face transversely striated on either side of it ; below the antennae, the 

 orbits broadly behind, the palpi, the clypeus (except at the extreme apex), and the labium, 

 yellow. Thorax strongly punctured, shining ; the scutellum scarcely so strongly punc- 

 tured as the mesonotum; metanotum with seven areae; the sides more or less reticulated. 

 Abdomen shining, impunctate, the ventral surface in the middle obscure yellow. The 



2qq2 



