Scolytltfi.] RHYNCHOPIIORA. 407 



ii. Elytra rather shining with the punctured striae 

 fairly regular but not strongly impressed, and 

 with the punctures of the interstices not much 

 finer than, or equal to, those of the stria?. 



1. Thorax with the punctuation vory fine on 

 disc ; less fine but not extremely close at sides ; 

 punctures of stria evidently a little stronger 



than those of interstices S. PEPSI, Ratz. 



2. Thorax with the punctuation rather fine on 

 disc, considerably stronger and very close at 



sides; punctures of striae and interstices equal (S. CABPIM, Ratz.) 

 iii. Elytra dull with very close stria?, striae and 

 interstices often more or less confluent, the 

 sculpture being rugose. 



1. Thorax very finely punctured on disc (the 

 punctures being round), more closely and 

 coarsely punctured at sides ; elytra of a uni- 

 form pitchy ferruginous or castaneous-red 



colour ; size larger S. INTRICATU8, Ratz. 



2. Thorax comparatively coarsely punctured on 

 disc (the punctures being elongate), strongly 

 and more or less confluently punctured at 

 sides ; elytra black with the apex broadly 



reddish S. BUGULOSUS, Ratz. 



II. Second ventral segment with a strong horizontal 

 projection on its posterior margin ; elytra with 

 close deeply impressed stria?, interstices with 

 regular rows of distinct punctures S. MTTLTISTBIATFS, MarsTi. 



S. Ratzeburg-i, Jans, (destntctor, Katz., Thorns.). Black, shining; 

 head deeply strigose, thickly, coarsely and deeply punctured behind and 

 at the sides, clypeus with a hroad triangular emargination in front ; 

 thorax a little longer than broad, broader at base, narrowed in front, 

 rounded at the sides, coarsely and deeply punctured at fides and in 

 front, finely and more diffusely on disc and behind ; elytra as wide as 

 thorax, parallel-sided, with the suture depressed throughout, more 

 strongly so towards scutellum, behind which there is a fine series of 

 punctures ; punctured striae rather strong, interstices flat, with a sorne- 

 Avhat irregular row of exceedingly minute punctures; legs black, femora 

 narrowly, tibiae broadly, pitchy-red at the apex ; tarsi testaceous ; abdo- 

 men much depressed, the surface of the second segment nearly perpen- 

 dicular, very sparingly and rather obscurely punctured, the apical (fifth) 

 segment with a broad deep impression, and with the punctures coarser 

 and a litle closer. L. 56 mm. 



Male with the forehead slightly excavate and thickly clothed with 

 long erect yellowish villose pubescence; abdomen with a round glabrous 

 tubercle on the middle of the anterior edge of the third segment, and 

 the fourth segment with a sinuate transverse raised space on its anterior 

 margin ; last segment without tufts of hairs. 



Female with the forehead shallowly depressed and scantily fur- 

 nished with long depressed fulvous hairs, and with a keeled line 



