84 MISC. PUBLICATION 6 9 8, U. S. DEPT. OF AGRICULTURE 



Heterobostrychus brunneus Lesne, 1899, Soc. Ent. de France Ann. (1898) 67: 

 557, 564-565, figs. 44, 169, 176, 177 ; Jakobson, 1913, Kaf er Russland, pt. 10, p. 

 805 ; Lesne, 1924, Bostrychides de l'Af rique Tropicale Franchise, pp. 134-137, 

 figs. 3, 4, 22, 73-75; 1935, Rev. Zool. et Bot. Africaine 27 (1) : 9; 1938, in 

 Junk (pub.), Coleopt. Cat., pt. 161, pp. 37-38; Tooke and Scott, 1944, So. Africa 

 Dept. Agr. and Forestry, Bui. 247 (Ent. Ser. 14) : 7, 9-11, figs. 9-11. 



Bostrychus grayanus Wollaston, 1867, Coleoptera Hesperidum, pp. 109-110. 



Bostrichus picipennis Fahraeus, 1872, Of vers. Vetensk. Akad. Forhandl. (1871), 

 (1871), 28: 669. 



Elongate, cylindrical, subopaque, uniformly dark reddish brown, 

 the palpi, antennae, and tarsi sometimes paler ; dorsal surface of body 

 sparsely clothed with very short, recumbent, yellowish hairs. 



Head much narrower than pronotum, densely, coarsely granulose in 

 front, with short longitudinal, parallel carinae on occiput; clypeus 

 nearly flat, densely, coarsely punctate, broadly, shallowly emarginate 

 in front; clypeal suture obsolete; labrum densely ciliate in front with 

 long, golden yellow hairs. 



Pronotum quadrate, strongly convex, widest at posterior angles, 

 strongly deflexed on apical half, armed at middle of anterior margin 

 with two strong, arcuate, more or less hooked teeth, which are narrowly 

 or broadly separated at middle ; sides parallel at middle, strongly con- 

 verging anteriorly; posterior angles rectangular, slightly projecting 

 and forming rounded lobes; surface finely, densely granulose, the 

 granules round and not flattened on basal half, with large, broad, rasp- 

 like teeth on apical half, the teeth much larger along lateral margins 

 anteriorly. 



Elytra at base subequal in width to pronotum at posterior angles, 

 slightly sinuate at base, sometimes with obsolete longitudinal costae, 

 without tubercles on apical declivity, but with a short costa on each 

 elytron along lateral margin on upper half of elytral declivity ; sides 

 parallel, broadly conjointly rounded at apices ; surface coarsely, deeply, 

 uniformly, very densely punctate. 



Body beneath finely, densely punctate, sparsely clothed with very 

 short, recumbent, yellowish hairs; last visible abdominal sternite 

 densely clothed with long, yellowish hairs at apex. 



Length 4.5-11 mm., width 1.2-3.5 mm. 



Type locality. — Of brwnneus, Old Calabar, Africa; type in the 

 British Museum. Of grayanus, Santa Iago, Cape Verde Islands ; type 

 in the British Museum. Of picipennis, Caffraria, Africa ; type either 

 in the Stockholm or the Goteberg Museum. 



Distribution. — This species is distributed throughout southern 

 Africa south of the Sahara Desert, and in Madagascar, and the Cape 

 Verde and Seychelles Islands. Specimens have been intercepted at 

 New York in wooden boxes, and mahogany logs from the Belgian 

 Congo, Southern Rhodesia, and the Gold Coast, Africa ; at Cherokee, 

 Iowa, in boxes from Africa; and at St. Paul, Minn., and Arlington. 

 Mass., in wooden ornaments from southern Africa. 



Hosts. — Lesne (1924) stated that the species usually lives in the 

 wood of bamboo, is common in bamboos used in construction work, 

 and is one of the principal enemies of felled wood in southern Africa, 

 where it also attacks the supports of buildings. In French Guinea 

 it lives in the tubers of potatoes (Batatus edulis Chois). Tooke 

 and Scott (1944) recorded the species from teak (Baikiaea plurijuga) 

 and kiaat (Pterocarpus angolensis) as well as many species of Euca- 



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