38 EK0TYLIDJ3. 



the black fasciae are more indented, often reduced to spots. The species of this genus 

 are usually very little differentiated, and many of this section depend rather on colour 

 and size than on any structural character ; the absence of the red submarginal stripe 

 near the apex seems quite constant. 

 We figure a specimen from Chontales. 



3. Megischyrus guatemalse. (Tab. n. fig. 12.) 



Megischyrus guatemalce, Crotch, Cist. Ent. i. p. 424 \ 



"Ater, subnitidus, oblongus, capite thoraceque subtiliter punctulatis, elytris tenue punetato-striatis, fasciis 

 3 e maculis alternis conflatis sanguineis. L. c. 6|-7 tin." 



Hab. British Honduras, R. Sarstoon (Blancaneaux) ; Guatemala \ El Reposo, 

 Zapote (Champion). 



Many specimens of this species were captured by Mr. Champion at Zapote, one of 

 which is figured on our Plate. 



4. Megischyrus sanguinolentus. (Tab. II. fig. 14.) 



lschyrus sanguinolentus, Lac. Monogr. Erotyl. p. 97 \ 

 Megischyrus sanguinolentus, Crotch, Cist. Exit. i. pp. 143, 424 2 . 



Hab. Mexico, Yucatan 12 , Tabasco 1 ; British Honduras, Belize (Blancaneaux); 

 Nicaragua, Chontales (Belt, Janson 2 ). 



5. Megischyrus zonalis. (Tab. II. fig. 16.) 



lschyrus zonalis, Lac. Monogr. Erotyl. p. 102 \ 

 Megischyrus zonalis, Crotch, Cist. Ent. i. p. 425 \ 



Hab. British Honduras, R. Sarstoon (Blancaneaux); Guatemala, Zapote (Cham- 

 pion). — Bolivia 12 ; Peru, Chanchamayo. 



In Crotch's collection there are three examples of this species, one from that of 

 Guerin, and two from that of the late Mr. E. Sheppard, with which our insect perfectly 

 agrees. A single specimen in the same collection named " M. sicarius " (from Reiche's 

 collection) does not appear to me to be different ; it is to be observed, however, that 

 the variety of M. sicarius mentioned by Crotch under the name M. perizonatus is not 

 in the Cambridge collection. 



The insects I record under the name M. zonalis agree very well with Lacordaire's 

 description ; they may be recognized from their allies (except M. sicarius) by the black 

 discal patch of the elytra having a projection nearly reaching the base. Our examples 

 have sometimes the yellow margin obliterated in the middle of the suture ; and the 

 colour of the margin is yellow, not blood-red as in M. discipennis. 



The figure is taken from a specimen from Zapote. 



