14G GEO. H. HORN, M. D. 



Posterior lega. — Anterior claw as above. Posterior claw similar to that of the 

 middle with the minute tooth a little more distinct. 



On PI. Ill, fig. 7 b, the claws are illustrated. 



Last joint of maxillary palpi oval, subacute at tip, broadly and rather deeply 

 excavated on its outer face. It is scarcely a third the length of the antennal 

 club. PL III, fig. 7 e. 



P. palpalis n. sp. — Piceous beneath, brownish above, moderately densely 

 clothed with cinereous pubescence, short and recumbent on the elytra, longer 

 and semierect on the head and thorax; body beneath with long silken hairs, 

 abdomen with short recumbent pubescence. Clypeus very distinctly narrowed 

 at base, angles rounded, apical margin truncate and reflexed. Thorax broader 

 than long, narrowed in front, sides moderately arcuate, surface coarsely and 

 moderately densely punctate. Elytra densely punctulate, disc vaguely costate. 

 Pygidium sparsely pubescent as on the elytra. Legs fimbriate with moder- 

 ately long hair. Length .80 inch; 20 mm. 



This species resembles Garpenteri in form and vestiture but differs 

 in the characters given below. 



The claws are shown on PI. Ill, fig. 7 c. 



Anterior legs. — Anterior claw moderately arcuate, armed at base with a 

 slender acute tooth scarcely more than a fourth the length of the apical 

 portion. Posterior claw moderately arcuate, armed at base with a broad basal 

 dilatation which is dentate in front. 



Middle legs. — Anterior claw as above. Posterior claw with a basal dilatation 

 armed in front with a tooth of moderate length. 



Posterior legs. — Anterior claw as above. Posterior very nearly like the 

 anterior with the tooth merely a little smaller. 



The tarsi of this species are longer and more slender than those of 

 the other two species. This is especially noticeable in the middle legs 

 where the tarsi are very distinctly longer than the tibise. The tarsi 

 in fact resemble those of Laclmosterna (e. g.fusca'), while in the others 

 the tarsi approach Polyphylla. 



Last joint of maxillary palpi nearly one-half longer than the pre- 

 ceding joints taken together, oval, subacute at tip, very deeply ex- 

 cavated on the outer side the groove running the entire length of the 

 joint. It is moreover three-fourths the length of the antennal club. 

 PI. Ill, fig. 7 f. 



I have seen two S specimens of this species, one in the cabinet of 

 Dr. Leconte, the other kindly presented to me by Mr. Chas. Fuchs. 

 They were collected in California. 



In resuming the differences it will be seen that puhescens has a 

 shallow and narrow impression on the outer face of the last joint of 

 the maxillary palpi, Garpenteri has a broader and deeper impression 

 while palpalls with the joint much longer has the impression reaching 

 the whole length of the joint and extending into it at least two-thirds 

 of its thickness. 



