STEIGODEBMA. 257 



border, and disc ; the depression on the anterior disc is slight and sometimes scarcely 

 perceptible. The lateral margin is simple in both sexes. 



In size S. castor varies from 6^-8 millim. 



A female specimen from Panistlahuaca is figured. 



The species is named S. angulata, Sturm, in the Salle collection. I received it from 

 Paris many years ago as S. marginicollis, Chevr., MS. 



11. Strigoderma festiva. 



S. castori proxime affinis ; differt solum thoraee transversim subquadrato vel subtrapezoidali margine alte 

 reflexo thoraceque grosse punctato, tumore flexuoso submarginali basali altius elevato foveaque obliqua 

 utrinque discoidali magis distincta. Color eadem sed variat toto chalybeo-nigro, pedibus rufis, thoraee 

 haud flavo-marginato. 



Long. 6-7 millim. J $ • 



Eab. Mexico, Juquila {Salle), Jalapa 1 (Edge). 



The locality " Jalapa " with which Herr Hoge's specimens are labelled must be 

 received with some reserve. I have adopted the name given to the species by Deyrolle 

 in the Salle collection. 



12. Strigoderma orbicularis. (Tab. XIV. fig. 14.) 



Strigoderma orbicularis, Burm. Handb. der Ent. iv. 2, p. 515 \. 



Hob. Mexico \ Cordova (Salle, Edge), Playa Vicente (Salle). 



Closely resembling S. castor in form and colours and differing only in the shorter and 

 more semicircular clypeus, the evenly-convex smooth thorax, punctured conspicuously 

 only near the sides, and in the sulci that limit the yellow submarginal wheal, the latter 

 not raised in the middle of the fore and hind margins. The pygidium differs also in 

 being less densely clothed with cinereous pile and contrasting with the rest of the 

 uncovered portion of the abdomen by its brassy-black colour. The anterior disc of the 

 elytra is much more strongly depressed. 



13. Strigoderma nigripennis. (Tab. XIV. fig. 15.) 



S. orbiculari differt solum colore viridi-aeneo splendente, elytris nigris, pedibus rufis, capite efr thoraee 



corporeque subtus interdum rufis aeneo-tinctis, thoraee nunquam flavo-marginato. 

 Long. 6|-7 millim. <5 $ . 



Eab. Mexico, Tepansacualco (Salle), Cordova (Edge) ; Guatemala, Panzos in Vera 

 Paz (Champion). 



The description of S. orbicularis applies to this on every point except colour. The 

 large number of examples of both, and the absence of all trace of connecting varieties, 

 lead me to treat it as a distinct form. 



A specimen from Panzos is figured. 

 biol. centr.-amer., Coleopt., Vol. II. Pt. 2, August 1888. 2 LL 



