54 ]Mr. D. S]iiir])'s Contributions to tlie 



very convex on tlic under surface, and tlicre closely and 

 distinctly ])unclured. The legs are pale yelloAv, the 

 femora pitchy on their hind margin ; the hind tarsi long 

 and slender ; their basal joint, though not quite so long as 

 the other four together, is longer than the three following 

 taken together. 



In the male the second segment of the hind body has 

 on the upper side three long spines, reachiiig about to the 

 extremity of the next segment, the middle one not quite 

 so long as the side ones ; the third segment has its hind 

 margin a little emarginate ; the sixth segment has an ele- 

 vation near each side extending from the base to the 

 extremity, betAveen these it is a little impressed, and 

 immediately in front of the hind margin is furnished Avitli 

 four or five small as])erities ; the seventh segment is 

 covered above with similar aspci'ities, and is longitudinally 

 elevated or swollen in the middle. 



Ega ; one male. 



2. JSIyrmcdonin pollens, n. sp. Picca, antennis pedi- 

 busque pallidioribus, thorace elytrisque opacis creberrime 

 ruguloso-pvuictatis, illo subquadrato, canaliculato; abdomine 

 supra nitidulo obsolete punctulato, subtus crebre punctato. 

 Long. 4] lin. 



The single s]ieclmen before me of this species is clearly 

 immature, so that 1 shall not give details of its colouring 

 i'urther than to say, that it is of a pitchy colour, with the 

 basal ])ortion of the antennas and the legs (more particu- 

 larly the femora) paler. Antenni\3 with the 3rd joint 

 about tAvice as long as the 2nd, and one and a-half times 

 the length of the 4th ; .'Jth much shorter than the 4th, 

 longer than l)r()ad; C — 10 dilfering but little in length; 

 the 10th scarcely so long as broad; last joint pointed, 

 about tAvicc as long as tiie 10th. The head is closely 

 and rather coarsely punctured, with a smooth shining 

 space in the middle. Tlie thorax is about as long as 

 broad, with a distinct longitudinal channel ; scarcely nar- 

 i-owcd behind ; the sides nearly straight from the front 

 to the hiiul angles ; it is moderately iinely and very 

 closely jvunctured, so that it is not at all shining. Tlio 

 elytra are about as long as the thorax and one and a-half 

 times its width, their ])unetnation exti'emely close, and 

 (iner than that oi" the thorax, ((uite dull. The hind body 

 is shining above, and obsoletely but distinctly punctured. 



