Scolytus.] 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 striz. 
1. Thorax with the punctuation very fine on 
disc ; less fine but not extremely close at sides ; 
punctures of strie evidently a little stronger 
than those of interstices . . . . . . . S. PRUNI, Ratz. 
2. Thorax with the punctuation rather fine on 
disc, considerably stronger and very close at 
sides; punctures of strize and interstices equal (S. CARPINI, Ratz.) 
ili, Elytra dull with very close strie, strie and 
interstices often more or less confluent, the 
sculpture being rugose. 
1. Thorax very finely punctured on dise (the 
punctures being round), more closely and 
coarsely punctured at sides; elytra of a uni- 
form pitchy ferruginous or castaneous-red 
COLOUT P BIZOMAL SOL at Pedals, sed once te 
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 Merete ond Ct Mauch eo Keb ns 
II. Second ventral segment with a strong horizontal 
projection on its posterior margin; elytra with 
close deeply impressed striw, interstices with 
regular rows of distinct punctures. . . . . . S. MULTISTRIATUS, Marsh. 
S. INTRICATUS, Ratz. 
S. rueuLosvs, Ratz. 
S. Ratzeburgi, Jans. (destructor, Ratz., Thoms.). Black, shining ; 
head deeply strigose, thickly, coarsely and deeply punctured behind and 
at the sides, clypeus with a broad 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 cides 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 striz rather strong, interstices flat, with a some- 
what irregular row of exceedingly minute punctures; legs black, femora 
narrowly, tibiz 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. UL. 5-6 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 
