ISCHYEUS. 41 



an opinion rendered more probable by the occurrence of the varieties noticed under 

 that species; but the femora, tibiae, and the basal two joints of the antennae (as well 

 as the head) are red, and the knees dark. I have only seen the specimen in the 

 Cambridge collection. 



10. Ischyrus tetrastictus. (Tab. III. fig. 1.) 



Rufo-ferrugineus, minute parce punctatus, antennis pedibusque piceis; capite puncto singulo, prothorace 

 punctis quatuor transverse dispositis nigris; elytris punctato-striatis, fasciis duabus communibus (una 

 basali altera pone medium), macula apieali, sutura postice limboque tenuissime nigris. Long. 7 millim. 



Hab. Panama, David (Champion). 



Oblong, rather parallel, chestnut-red above, rusty-red beneath. Head and thorax 

 sparsely and not deeply punctured ; the former with one black spot on the crown ; the 

 latter with four spots, arranged as in /. graphicus. Elytra with a broad basal fascia 

 deeply indented on the apical side at the suture and in the middle, and not reaching 

 the margin ; a second fascia beyond the middle, widest at the suture, twice indented 

 on each side and not touching the margin ; and an apical spot ; the extreme lim| of 

 each elytron is black in the apical half. The legs are pitchy, with the knees darker, 

 the tarsi reddish. The antennae are pitchy-black, with the club black. 



A single specimen. 



11. Ischyrus septemsignatus. (Tab. II. fig. 19.) 



Oblongo-ovatus, flavo-ferrugineus, parce sat fortiter punctatus ; pectore abdomineque medio, capite, prothoracis 

 punctis duobus, scutello, macula magna scutellari communi et tribus aliis (una humerali lineari, una 

 mediana rotundata alteraque subapicali minore), sutura pedibusque nigris. Long. 6 millim. 



Hab. Mexico, Toxpam (Salle). 



Var. a. Capite rufo. 



Hab. Guatemala, Capetillo, Pantaleon (Champion). 



Var. /3. Major, fortius punctatus, capite rufescente. 



Hab. Guatemala, Capetillo (Champion). 



Head, thorax, sides of the metasternum, and abdomen rather strongly and thickly 

 punctured. Antennae short, pitchy, with the club black. The elytra have their 

 markings distinct ; in some specimens the suture is scarcely touched with black ; the 

 punctured striae are distinct, but the seventh and eighth are almost obliterated. In 

 the markings and in the elytra being narrowed towards the apex, this insect recalls 

 the Eastern Hpiscapha australis. The variation in the colour of the head is not 

 unusual in this genus. 



12. Ischyrus Scutellaria (Tab. III. fig. 2.) 



Oblongo-ovatus, flavus, parce baud profunde punctatus; prothorace punctis duobus discoidalibus, duobus 



biol. centr.-amee., Coleopt, Vol. VII., December 1 887. G* 



