J. 



NYSSON.— GOEYTES. 71 



2. Nysson dives. 



Nysson dives, Handl. Sitz. der k. Akad. der Wissensch. Wien, xcv. p. 309, t. 4. figg. 8, 24 ■ . 

 Hob. Mexico, Orizaba l . 



ii. Posterior tibiae not serrate; lateral margin of the seutellum not reflexed ; post- 

 scutellum narrow, not bilobed ; apex of the abdomen ( d ) with not more than two 

 spines. (Nysson.) 



3. Nysson zapotecus. 



Nysson zapotecus, Cresson, Trans. Am. Ent. Soc. ix. p. 280 l ; Handl. Sitz. der k. Akad. der Wissensch. 

 Wien, xcv. p. 360. 



Hab. Mexico (Sumichrast l ). 



7 



J 



4. Nysson aztecus. 



Nysson aztecus, Cresson, Trans. Am. Ent. Soc. ix. p. 279 1 ; Handl. Sitz. der k. Akad. der Wissensch. 

 Wien, xcv. p. 361. 

 Hab. Mexico (Sumichrast l ). 



GORYTES. 



Gorytes, Latreille, Hist. Nat. des Crust, et des Ins. xiii. p. 308 (1805) ; Handlirsch, Sitz. der 

 k. Akad. der Wissensch. Wien, xcvii. p. 316 (1888). 



Gorytes has been divided into many " genera " — Earpactus, Eoplisus, Lestiphorus, 

 Euspongus, &c. ; but, as Handlirsch has shown, the characters upon which they are 

 grounded merge completely the one into the other, so that most of them can hardly be 

 even used for divisional purposes. The Central-American species, with the exception 

 of G. bipunctatus, which, as regards the neuration of the hind wings, is a Hoplisus, all 

 belong to Gorytes, Cresson, that is, they have the median nerve received beyond the 

 posterior transverse nervure. 



In the excellent Monograph of Handlirsch, 121 species are described from all parts 

 of the world. I have followed here, as closely as possible, his arrangement of the 

 species. 



i. Median nervure of the hind wing received considerably before the posterior transverse 

 nervure ; both the recurrent nervures interstitial. (Euspongus, Cress.) 



1. Gorytes bipunctatUS. (Tab. V. figg. 11; H«, head from in front; 11 b, 

 antenna.) 

 Gorytes bipunctatus, Say, in Long's Second Expedition, p. 338 x ; Complete Writings, i. p. 228 ; 



Handl. Sitz. der k. Akad. der Wissensch. Wien, xcvii. p. 355 2 . 

 Lestiphorus bipunctatus, Dahlb. Hymen. Europ. i. p. 157. 

 Euspongus bipunctatus, Dahlb. Hymen. Europ. i. p. 480; Cresson, Trans. Am. Ent. Soc. 1887, Suppl. 



p. 280 3 . 



