344 PROCEEDINGS OF THE ACADEMY OP 



third, which is elongate oval; the maxillary palpi have the last joint conical, a 

 little longer than the preceding. The mentum is broad, emarginate in front. 

 The labrum is emarginate, the mandibles flat, not toothed. The club of the 

 antennae is 3-jointed and elongate, the joints but slightly transverse. The 

 second and third ventral segments are shorter than the first and fourth ; the 

 fifth is the longest ; in the males a small but distinct dorsal segment is added. 

 The tibiae are broad and pubescent, with small terminal spurs ; the tarsi are 

 dilated, the claws slender, a little broader at the base, but not toothed. 



29. A. r u f ip e s, ovalis parum convexus nigro-piceus, helvo-pubescens, con- 

 fertim punctatus, thorace latitudine fere duplo breviore, antice truncato, 

 lateribus et basi rotundato, elytris thorace sesqui longioribus, lateribus et 

 apice late indeterminate rufo-testaceis, antennis pedibusque rufo-testaceis. 

 Long. -20. 



Mendocino, California. A. Agassiz. The surface is equally punctured both 

 above and beneath. The antennae are as long as the head and thorax united. 



30. Trogosita sinuata, nigro-picea nitida, depressa, capite thoraceque 

 sat parce punctatis, hoc latitudine paulo breviore, postice parum angustato, 

 lateribus late rotundatis, postice sinuatis, margine fortius reflexo, angulis pos- 

 ticis rectis, basi sinuatim truncata, elytris oblongis, basi late emarginatis, 

 humeris rectis, striis punctatis haud impressis, interstitiis planis, parce rugu- 

 losis, biseriatim subtiliter punctulatis, antennis pedibusque piceo-rufis, illis 

 clava triarticulata. Long. -28. 



East of Fort Colville, one specimen ; Mr. Gibbs. This species resembles in 

 appearance T. corticalis Mels., and several others from the Atlantic States, 

 but is easily known by the thorax being less transverse and less narrowed 

 behind, with the hind angles more prominent, and the base not rounded, but 

 nearly truncate and sinuate, and slightly emarginate at the middle. 



31. Trogoderma ornatum Lee. Proc. Acad. Nat. Sc. Phil. 7, 110. 



A specimen of this species from California, differing from those found in 

 New York, by the spots of white hair being larger, was sent me by Mr. A. 

 Murray. 



32. Cryptorhopalum nigricorne, ovale convexum, nigrum pubescens, 

 subtiliter dense punctatum, thorace lateribus oblique late rotundatis, tarsis 

 piceis, antennis nigris basi piceis. Long. '09. 



California, one specimen ; Mr. Murray. Differs from C. triste and pi- 

 cicorneiec. (Proc. Acad. 7, 111), by the surface being more finely punc- 

 tured both above and beneath, by the sides of the thorax being less rounded, 

 and by the club of the antennae being black. 



33. Orphilus subnitidus, ovalis convexus, antice obtuse attenuatus, 

 niger subnitidus, thorace punctulato, ad basin vage arcuatim impresso, angulis 

 posticis paulo prolongatis, lateribus subexplanatis, valde declivibus, elytris 

 sat subtiliter punctatis, dorso ante medium vage impressis. Long. -13 "16. 



Le Conte, Classification of Coleoptera of North America, 109. 

 California and Oregon. Broader, larger and more finely punctured than O. 

 a t e r Er. 



34. Syncalypta albonotata, ovalis, utrinque attenuata, convexa, nigra, 

 fusco-squamulosa, setis clavatis longiusculis nigro-piceis hispida, elytris gut- 

 tis pluribus parvis argenteo-squamosis ornatis, capite thorace que dense 

 punctatis, elytris striis tenuibus, suturali postice externisque profundis. 

 Long. "11. 



Washington Territory, one specimen ; Mr. Ulke. Larger than S. e c h i n - 

 ata Lee, with the thorax more coarsely and densely punctured; easily 

 known by the silvery white spots of the elytra. 



[Nov 



