May iSq9.] 



SUPPLEMENl TO rSYCHE. 



11 



slightly more convex than the front but not 

 separated from it; antennae inserted at outer 

 fifth of the beak, scape extending slightly' 

 beyond the hind margin of the eyes, first 

 funicular joint about twice as long as wide, 

 second joint slightly longer than wide, obcon- 

 ical, joints 3-7 transverse, gradually but not 

 strongly increasing in width, club large, 

 oblong-oval, opaque, pubescent, basal por- 

 tion very little smoollier than the apical por- 

 tion. 



Thorax very little longer than wide, sides 

 straight from base to three-fourths of the 

 length, then rounded and narrowing, apical 

 constriction hardly perceptible; base sinuate 

 each side of a short median lobe ; surface ex-. 

 tremely coarsely, densely cribrato-punctate, 

 the interstices of the punctures broader and 

 more shining on the disk than on the sides: 

 a distinct depression anterior to thescutelhim 

 where a shining cariniform elevation may be 

 seen, and, in front of this, a larger, equally 

 shining rudiment of a smooth median line. 



Elytra at base wider than the thorax, striate, 

 the striae extremely coarsely punctate; inter- 

 vals narrow, subcostiform, sutural interstice 

 behind the scutellum depressed. Prosternum 

 and mesosternum very coarsely and densely 

 punctate; metasternum and abdomen less 

 densely but also coarsely punctate. Front 

 tibiae not sinuate at inner edge. 



Length, 3.7-4.S mm. 



Localit)', Tucson. Arizona ; t,\ pu 

 U. S. Nat. MiKSemn (Collection Ihih- 

 bavd & Schvvarzl. 



I have seen only fiv'e specimens of 

 this species which is readily known 

 from all North American species of this 

 genus (including Borophloeus Woll.) 

 by its hardly dilated beak and the 

 extremely coarse punctuation. It seems 

 to be one of the rarest insects peculiar 

 to the Giant Cactus. 



Cactopinus, nov.gen. (family Scolytidae ; 



subfamily Tomicinae) — Body moderately 

 slender, head subglobose, retracted into the 

 thorax; antennae short, scape slightly 

 shorter than the funicle, widening apically, 

 convex at outeredge and here furnished with 

 a few long setae; funicle 5-jointed; the first 

 large, obconical, joints 2-4 small, increasing 

 in width, joint 5 closely applied to the club 

 and twice as wide as long; club oval, com- 

 paratively small, about as long as the funicle, 

 sparsely pubescent on botli sides and with 

 two distinct straight, or nearly straight 

 sutures. Clypeus, in the male, armed with a 

 long process consisting of two cylindrical 

 rods which are laterally connate except near 

 the tip where a contraction and separation 

 of the rods takes place. 



Prothorax as long as %vide or slightly 

 longer than wide, rounded at the sides Avhich 

 are not margined; disk, in both sexes, with 

 a longitudinal, tuberculated and distinctly 

 elevated median area which projects beyond 

 the base of the thorax as a triangular lobe. 



Elytra with the basal margin not elevated, 

 conjointly rounded at tip, surface punctate- 

 striate, sutural stria distinctly impressed, 

 declivity steep, with the sutural space sul- 

 cate. 



Prosternum \'erv short in front of cox;ie, 

 which are nearly- contiguous. Abdomen 

 horizontal, segments i and 2 of equal length, 

 each about as long as segments 3 and 4 com- 

 bined. Legs rather short, hairy ; front tibiae 

 narrow, very little dilated apically, outer 

 edge not arcuate, neither denticulate nor 

 serrate, slightly sinuate near apex, outer 

 apical angle moderately produced laterally, 

 terminal mucro straight and moderately 

 slender; middle and hind tibiae slightly 

 more slender than the anterior tibiae; tarsi 

 short, joints 1-3 of equal length, joint 3 not 

 dilated, joint 4 distinct, clav/ joint long and 

 slender. 



Cactopinus hubbardi, n. sp. — Elongate- 

 oval, usually subopaque ; the whole body, 

 including the legs, beset with rather sparse, 

 long erect yellowish hairs; color piceous; 



