MEGISCHYEUS.-— ISCHYBUS. 39 



6. Megischyrus discipennis. (Tab. II. fig. 15.) 



Ischyrus discipennis, Lac. Monogr. Erotyl. p. 101 *. 

 Megischyrus discipennis, Crotch, Cist. Ent. i. pp. 143, 425 2 . 



Hab. Mexico 1 2 , Toxpam, Santecomapan (Salle) ; Nicaragua (Salle), Chontales 

 (Belt, Janson 2 ); Panama, Volcan de Chiriqui, La Caldera (Champion). 



This insect has apparently a range further north than M. zonalis. M. discipennis is, 

 however, comparatively rare in Mexico. The specimen figured is a unique one from 

 Toxpam ; it is rather larger than usual and very brightly coloured. 



ISCHYRUS. 



Ischyrus, Lacordaire, Monogr. Erotyl. p. 89 (1842) (pars) ; Crotch, Cist. Ent. i. p. 144 (1873), and 

 p. 426 (1876). 



As restricted by Crotch this genus contains only small species with coarsely granu- 

 lated eyes. About forty-five species are included in it by him, all from America. 



1. Ischyrus quadripunctatus. 



Erotylus 4-punctatus, Oliv. Enc. Meth. vi. p. 437 (1791) 1 ; Ent. v. p. 484. t. 3. f . 37. 

 Ischyrus 4,-punctatus, Lac. Monogr. Erotyl. p. 127 2 ; Crotch, Trans. Am. Ent. Soc. 1873, p. 353 3 ; 

 Cist. Ent. i. p. 426 4 . 



Hab. Nokth Ameeica, United States 1 2 34 . — Guatemala (coll. Gorham). 



The only specimen I have yet seen from Central America is one in my own collection. 

 The supposed Mexican specimens alluded to by Crotch 3 are not this species but 

 /. graphicus. It is, however, probable that it occurs in Mexico. 



2. Ischyrus frontalis. 



Ischyrus frontalis, Lac. Monogr. Erotyl. p. 127 1 . 

 Ischyrus agnaius, Crotch, Cist. Ent. i. p. 426 2 . 



Hab. Mexico l (Flohr) ; Panama, La Caldera in Chiriqui (Champion). — South Ame- 

 eica, Colombia 2 . 



I cannot find any difference of importance between /. frontalis and i". agnatus, 

 excepting that the latter is smaller ; our specimens agree with I. agnatus in size. 



3. Ischyrus tripunctatus. 



Ischyrus tripunctatus, Crotch, Cist. Ent. i. p. 144 \ 

 Hab. Nicaeagua, Chontales (Janson l ). 



4. Ischyrus graphicus. (Tab. II. fig. 17.) 



Ischyrus graphicus, Lac. Monogr. Erotyl. p. 125 1 ; Crotch, Cist. Ent. i. pp. 144, 426 2 . 

 Hab. Mexico 12 , Toxpam (Salle); Nicaragua (Salle), Chontales (Belt, Janson 2 ). 



