SCIRTES. 613 



A single example from each locality, the one from Panama being a good deal smaller 

 and more rotundate than the other, but agreeing with it in the long and slender 

 antennae. This insect is allied to S. tenuicornis, but may be known from it by the less 

 densely punctured elytra, sparser pubescence, and rather shorter antennas. From 

 S. suborbiculatus in all its varieties it differs in the longer and more slender antennae ; 

 and from S. pilatei by its much smaller size, shorter pubescence, finer punctuation, &c. 

 A specimen from Guatemala city probably belongs here ; it has a common oblong pallid 

 central spot on the elytra before the middle. 



10. Scirtes tenuicornis. 



Elliptic, rather broad, moderately convex, slightly shining ; head, prothorax, scutellum, and under surface 

 fusco-testaceous, the elytra fuscous, the antennae with the basal six joints testaceous, the others 

 infuscate, the legs testaceous ; the upper surface thickly clothed with fine pallid sericeous pubescence. 

 Head, prothorax, and scutellum densely, very minutely punctate ; antennae very long and very slender, 

 joint 3 about as long as 2, 4-11 very elongate, the outer joints diminishing in length ; prothorax convex, 

 very short, rapidly narrowing from the base, finely margined at the sides ; elytra densely, minutely 

 punctate, the punctuation scarcely coarser than that of the prothorax, narrowly and acutely margined 

 at the sides. 



Length 31, breadth 2\ millim. 



Hab. Guatemala, San Geronimo [Champion). 



One example. Similar to S. pilatei in shape, but much smaller, more finely pubescent, 

 the antennae more slender, and the elytra densely, minutely punctate. In the present 

 insect the punctuation of the elytra is scarcely coarser than that of the head and thorax, 

 a character separating S. tenuicornis from most of the allied forms. 



11. Scirtes ater. 



Elliptic, rather broad, convex, shining ; black, the antennae testaceous, with the apical joint slightly infuscate, 

 the legs piceous, with the knees reddish and the tarsi testaceous ; sparsely clothed with very fine fuscous 

 pubescence. Head, prothorax, and scutellum thickly, minutely punctate ; antennae moderately long and 

 slender, joint 3 very small, much shorter than 2, 4-11 elongate, gradually decreasing in length ; prothorax 

 short and convex, narrowing from the base, acutely margined at the sides ; elytra somewhat thickly, very 

 finely punctate, the punctuation distinctly coarser than that of the prothorax, narrowly margined at 

 the sides. 



Length 3, breadth 2 millim. 



Hab. Panama, Bugaba {Champion). 



One specimen. Very like S. saltator ; but of less regularly oval shape (less narrowed 

 in front and behind), the elytra a little more sparsely punctured and with darker 

 pubescence, the antennae with a much shorter third joint. The rather larger size and 

 the very differently formed antennae separate it from 8. longicomis, and the smaller 

 size, narrower shape, finer punctuation, very fine and sparse pubescence, &c, from 

 S. pilatei. 



