114 GENUS CEPHUS. 



Genus CEPHUS. 



CepJius, Latr., Hist. Nat. Crust. Ins., iii, 303 (1802). 



Astatus, Pz. (nee Latr.), F. G., 83, pi. xii (1801) ; Klug, Mon. 



Sir. Germ., 47. 

 Trachelus, Jur., Hym., 70. 

 Banchus, Pz., F. G., 73, pi. xvii (1797). 

 Janus, Stephens, 111., vii, 107 (1835). 

 Phyllsecus, Newman, Ent. Mag., v. 485 (1838). 

 Ephippematus, Costa, Fauna Nap. Cef. 10 (1860). 



Wings with two radial and four cubital cellules; the first radial 

 cellule small; transverse radial nervure usually received in the middle 

 of the second cubital cellule ; first cubital cellule usually longer than 

 second, receiving one recurrent nervure ; the third cellule is the shortest 

 and also receives a recurrent nervure, but the latter is often interstitial 

 with the second transverse cubital nervure. The transverse basal 

 nervure is joined to cubital and received in the first cubital cellule ; 

 the transverse median is usually received quite close to the transverse 

 basal. Lanceolate cellule wide, divided by a straight cross nervure. 

 Posterior wings with two median cellules ; radial cellule not extending 

 to apex of wing. 



Antennae usually longer than the abdomen, stout, 

 eighteen to twenty-eight-jointed ; the first two joints 

 are rounded at the apex, the first with a short pedicle 

 at the base and longer than second, the rest transverse ; 

 third joint equal to, longer than, or more rarely shorter 

 than fourth ; they are inserted half way up the face 

 and between the middle of the eyes. Head cubital, 

 seldom dilated behind the eyes ; sutures on vertex 

 obsolete ; front projecting between the antennae. Cly- 

 peus truncated at apex, but is sometimes toothed at 

 the lateral angles. Mandibles stout, broad, with three 

 irregular teeth. Maxillary palpi six-, labial four- jointed. 

 Prothorax long, narrowed towards the head, and with 

 a distinct slope from the mesonotum ; it is nearly as 

 long as the mesothorax. Mesonotum with a broad 

 and not very deep furrow running from the scutellum 

 to the middle lobe which is shorter, being broader than 

 long. Scutellum nearly as long as the mesonotum, 

 rounded at- both ends; cenchri obsolete. Legs of 

 medium length; femora moderately stout, shorter 

 than tibiae, which are shorter than tarsi ; metatarsus 

 long, spurs short ; claws long. 



