NORTH AMERICAN BOSTRICHIDAE 95 



clothed with short, recumbent, inconspicuous hairs, coarsely, densely 

 punctate on basal half, rather densely, irregularly dentate on apical 

 half, the teeth broad, variable in size, semierect, and rasplike. 



Elytra at base subequal in width to pronotum at middle; side- 

 parallel, conjointly broadly rounded at apices; apical contour (when 

 viewed from above) broadly rounded; surface deeply, narrowly de- 

 pressed along sutural margins on apical declivity, coarsely, densely, 

 rugosely punctate on disk, more coarsely and confluently punctate 

 on apical declivity, clothed with a few very short, inconspicuous hairs ; 

 sutural margins on apical declivity strongly gibbose and arcuately 

 expanded laterally at middle of declivity, smooth and shining, at least 

 on anterior half of dorsal surface, sides abruptly deflexed, the gib- 

 bosity broadly rounded when viewed in profile. 



Body beneath coarsely, rather densely punctate, sparsely clothed 

 with moderately long, recumbent, whitish hairs ; last visible abdominal 

 sternite broadly rounded at apex. 



Female. — Differs from the male in having a vague, pubescent depres- 

 sion at the apex of the last visible abdominal sternite. 



Length 3.2-5 mm., width 1.2-1.5 mm. 



Type locality. — Torola and San Geronimo, Guatemala ; type in the 

 British Museum. 



Distribution. — This species has been intercepted a great many times 

 at New York, N. Y., Philadelphia, Pa., Santa Fe, N. Mex., and 

 Xogales, Ariz., in shipments from Mexico. Leslie (1939) lists this 

 species from Mexico and Guatemala. 



Hosts. — Specimens intercepted were usually in wooden crates com- 

 posed of Baccharis or Sambucus wood, and adults were also found in 

 the stems of Sambucus sp. from Mexico. 



Lesne (1906) described lab talis from two specimens in the British 

 Museum collected by G. C. Champion in Guatemala at Torola (300 

 meters) and San Geronimo (900 meters) without designating either 

 place as the type locality. 



Genus APATIDES Casey 



Apatides Casey. 1S9S. N. Y. Ent. Soc. Jour. 6: 66, 70-71; 1914, Mem. Coleopt, 

 v. 5, pp. 359-360; Lesne, 1899, Soc. Ent. de France Ann. (1898) 67: 526, 552- 

 553 (part) ; 1900, Soc. Ent. de France Bui., pp. 46-47; 1938, in Junk (pub.), 

 Coleopt. Cat., pt. 161, pp. 42-43. 



Head strongly convex on occiput, broadly, transversely concave 

 behind eyes, abruptly deflexed behind clypeus, deeply inserted in pro- 

 thorax, not visible from above; front separated from vertex by a 

 transversely arcuate ridge; clypeus slightly convex, broadly trans- 

 verse, truncate in front, anterior angles rectangular; clypeal suture 

 distinct; labrum strongly transverse, truncate in front and densely 

 ciliate with large yellow hairs in front ; margins of buccal cavities not 

 dentate below eyes; mandibles more or less attenuate toward apices: 

 eyes oval, globose, strongly projecting. Antenna 10-segmented ; first 

 and second segments robust, first elongate, second oval, shorter than 

 first; third to seventh segments short, narrower than second, oval or 

 transverse, subequal to one another in length; last three segments 

 forming a broad, loose, compressed club, each with two more or less 

 distinct, round, sensory depressions on each surface, eighth and ninth 

 subtriangular, truncate at apices, the ninth shorter than eighth, tenth 



