Af("plus.] RHYNCHOI'HOIU. 293 



regarded as merely a large female of the latter, and the question still 

 appears to be somewhat doubtful ; Dr. Sharp, however, recognizes the 

 species in his second catalogue, and M. Bedel also gives it as distinct, 

 and as recently found in France, in his catalogue ; it had apparently 

 not been discovered when he wrote the tirst part of his work; they are 

 small, deep black, robust, strongly sculptured insects, with stout legs 

 and rostrum, and somewhat resemble in shape small specimens of 

 Orchfstes ; the tibiae are armed with a strong hook at apex, and the 

 second segment ot the abdomen is more than twice as long as third. 



I. Size smaller ; interstices of elytra rngosely punctured . . A. PiAjfTAnis, Naez, 



II. Size larger; interstices of elytra with moderately regular 



rows of punctures A. BOBOEIS, Snffr. 



A. plantaris. Xaez. Obovate, convex, black, slightly shining, with 

 the antennae which are rather short and are inserted in front of middle 

 of rostrum testaceous at base ; rostrum rather stout, punctured, eyes 

 scarcely prominent j thorax convex, transverse, with sides narrowed in 

 front, closely and rather strongly punctured ; scutellum and sides of 

 breast clothed with white scales ; elytra broader than thorax, with 

 shoulders well marked, with strong and crenulately punctured stria}, 

 interstices convex, narrower than the striae, furnished with very short 

 erect whitish setae ; legs entirely black, femora not thickened. L. 2-21 

 mm. 



On young birch, alder, &c., in woods ; common and generally distributed through, 

 out England and Scotland ; Ireland, Lough Xeagh district, &c. 



A. roboris, Suflr. Very closely allied to the preceding, but larger, 

 with the thorax more coarsely punctured, the punctures being partly 

 confluent, and the striae on the elytra less deep, the interstices being in 

 consequence broader and natter ; the interstices, moreover, instead of 

 being rugose, are furnished with tolerably regular rows of punctures, 

 each bearing a short white seta, inclined backwards ; the characters, 

 however, seem more distinct in a description than they really are if 

 actually examined. L. 2| mm. 



On alders (A. glutinosa and according to Nordlinger A. incana) ; also on oaks; 

 rare ; Leith Hill (Champion) ; Cooinbe and Swithland Woods (Power) ; Lords 

 Wood, Southampton (Gorham) ; Leicestershire (received by Wollastou) ; Scotland, 

 very rare, on oak (Solway district). 



ACALYPTINA. 



This tribe is closely allied to the Elleschina but differs in having the 

 tarsal claws simple and the pygidium exposed ; both the Acalyptiua and 

 the Elleschina are placed by some authors under the Tychiina, from which, 

 however, they differ in the foimation of the second segment of the 

 abdomen, which in the last-mentioned tribe has the posterior margin 

 produced at each side and extending over the third segment to the base 

 of the fourth. 



