EruiiiyssA. 87 



Genus EPIRHYSSA, Cress. 



Einrhjssa, Cressou, Proc. Eat. Soc. Thilad. 1865, p. 39. 

 liliyssonota, Krieclibiiuuier, Aim. Xat. Hofmus. Wien, 1890, p. 489, 



Gexotype, E. speciosa, Cress. 



A genus of very large aucl strongly elongate species, with trans- 

 striate luesouotuin and the terehra longer than the whole body. 

 Head short, subbiiccate and transverse, usually dilated behind the 

 oval and subrenit'orin eyes ; clypeus very short, strongly trans- 

 verse and apically subproduced centrally, often basally discrete ; 

 mandibles stout and basally broad. Antenmx? slender and filiform, 

 not attenuate ; flagellar joints elongate. Thorax subcylindrical 

 ^uid discally deplanate; mesonotum closely and regularly trans- 

 strigose throughout, with the notauli entire and often deeply 

 impressed; metanotuui longitudinally canaliculate, with the 

 spiracles oblong or ovate, and the areas obsolete. Scutellum 

 subconvex. Abdomen cylindrical, sessile, smooth and nitidulous, 

 obsoletely alutaceous ; ventral A'alvuhie of d exserted ; anus of $ 

 subcompressed, third segment not basally impi'essed, eighth 

 exserted and triangular, hypopygiura not reaching base of 

 terebra. Legs, and especiall}^ the hind oiies, elongate, with 

 tarsal claws simple and postei'ior coxic subcylindrical. Wings 

 ample, though not broad, with areolet entirely wanting ; nervellus 

 intercepting recurrent nervure close to its junction with the 

 median vein. 



Itanrje. In America the genus has a wide distribution, from 

 Brazil to Canada, and is also found in Cuba ; but elsewhere, the 

 representatives here enumerated, \^'itii a few from the Malay 

 llegion, are the only ones at present known from the Old AVorld, 

 with the exception of single Japanese and Annamese species. 



This genus diifers from llJii/ssa, to which it is closely i*elated in 

 its strongly trans-striate mesonotum, in having the alar areolet 

 entirely wanting. 



Table of Species. 



1 (2) Abdomen and legs not black-uiarkfd .... flavohalteata, Cam., 



2 (1) Abdomen and legs broadly black-marked. [p. 88. 



3 (4) Frons carinate ; scutelluiu punctate ; 



abdomen mainly red carinifrons, Cam., 



4 (3) Frons not carinate ; scutellum striate. [p. 89. 

 o (0) Abdomen Havoiis ; .scutellum apically 



black ; all femora immaculate macnliconiis, Cam., 



O (5) Abdomen fulvous ; scutellum pale ; all [p. 89. 



femora black-marked aniatipcs, Cam., 



[p. 90. 



