212 



Fig. 4:7.— Leonia rileyi : a, adult female; 6, antenna; c, 

 labium ; d, maxilla and palpus ; e, tarsal claw from the 

 side — enlarged;/, tarsal claw from above, still more en- 

 larged (from drawings by Duges). 



the internal one sub-quadrate at tip, provided with thick and stiff hairs ; maxillary 

 palpi, four-jointed, the last ovoid, much less large than in Hornia. Meutum trape- 

 zoidal, i. e., quadrate with the 

 front margin shorter than the pos- 

 terior; ligula coriaceous, rounded 

 at tip; labial pali^i, three-jointed, 

 the last ovoid and of the same 

 form as the corresponding joint of 

 the maxillary palpi ; antenme in- 

 serted on an elevation of tlie front, 

 ten-jointed, first joint the longest 

 and thickest, claviform, second 

 one-half the size of the first, trans- 

 verse-conical, third conical, thin- 

 ner, and longer than the second, 

 fourth three-fourths the size of 

 the third, fifth to ninth similar 

 to the fourth, tenth oval, longer 

 than the ninth ; joints 5 and 6, 7 

 and 8 have the tendency to become 

 connate into a single joint. The 

 antennae are stout aud resemble 

 much those of the male Hornia. 

 They are longer than the head, 

 punctulate and pubescent. The 

 first two joints are ferruginous, the remaining black ; epistoma separated from the 

 front by a short, well-marked, and anteriorly straight furrow, punctulate, ciliate, fer- 

 ruginous ; eyes small, decidedly transverse ; head trapezoidal, a little wider than the 

 thorax, posterior margin straight, angles rounded, surface strongly depressed, with 

 sparse black pubescence ; color ferruginous. 



Prothorax strongly transverse, one^third wider than long, a little narrowino- pos- 

 teriorly, side margin straight or nearly so, anterior angles strongly rounded, posterior 

 angles less so, base slightly margined and sinuate; dorsal channel obsolete, surface 

 shining, punctate, ferruginous, covered with black hairs. 



Scutellum large, slightly transverse-triangular, rounded at tip, punctate, black. 

 Elytra squamiform, but larger than in Hornia, for they nearly reach the middle of 

 the first abdominal segment. They meet at the tip of the scutellum with their internal 

 humeral (sutural) angles, but diverge thence so that a small portion of the metanotum 

 l^ecomes visible; rounded at the side and subaugnlated at the internal margin; the 

 angle which is here visible may be said to be the internal apical angle. Surface cor- 

 iaceous, rugose, punctate, testaceous, covered with black hair. It is hardly necessary 

 to state that the elytra do not cover the side pieces of the sternum. No underwiugs. 

 Metasternum very short. 



Abdomen normal, i. e., very little inflated aud in no way baggy {en besace) ; all seg- 

 ments entirely subcorneous, though less so ou the ventral side than dorsally. Last 

 dorsal segment very small, rounded at tip, last ventral a little larger and emargin- 

 ate. All segments blackish-brown with anterior and posterior borders ferruginous, 

 excepting the two last segments which are entirely black. The whole abdomen is 

 shining and pubescent. 



Legs ferruginous, covered with black hair. All coxsb conical and very prominent, 

 the intermediate impending on the posterior, just as in Hornia, although the over- 

 lapping is here more marked. Femora slender without silky emargination ; tibiie 

 slender, also without emargination and with well developed spurs, those of the hind 

 tibiae large and rounded at tip. Tarsal joints slender. Claws reddish, long, curved, 

 and acute, outheunderside provided with a long, straight, acute spine, attaining three- 



