NORTH AMERICAN BOSTRICHIDAE 141 



elevated, crenulate toward top of declivity, and completely enclosing 

 the declivity; sutural margins narrow, slightly elevated on apical 

 declivity, strongly elevated at apices. 



Abdomen beneath finely, densely granulose, rather densely clothed 

 with short, recumbent, yellowish hairs; first visible sternite longitudi- 

 nally carinate at middle; last visible sternite not much longer than 

 preceding sternite, and broadly rounded at apex. 



Female. — Differs from the male in having the last visible abdominal 

 sternite twice as long as the preceding sternite at the middle, and 

 slightly emarginate at the apex. 

 Length 3-5.5 mm., width 1.4-1.7 mm. 



Type locality. — Of capucinus and eremite^ both from the Coro- 

 mandel Coast, India ; type in the Banks Collection in the British 

 Museum. Of marginata. East Indies; location of type unknown to 

 writer. Of nicobaricus, Xicobar Island; type supposed to be in the 

 Vienna Museum. 



Distribution. — This species is widely distributed in all tropical re- 

 gions. It has been recorded from India, Ceylon, China, Siam, Indo- 

 China, Burma, Formosa, Philippines, nearly all Malaysian and 

 Melanesian Islands, Madagascar, etc. It has been introduced from 

 the Indo-Malaysian and Malaccan regions by commerce into the east- 

 ern and western coasts of Africa, and French Guinea, Venezuela, Trini- 

 dad, and Brazil. Specimens have been intercepted at New York in 

 derris roots from British Malay, and at Miami, Fla., on a plane arriv- 

 ing from Rio de Janeiro, Brazil. So far as known, this species has 

 not become established in the United States. 



Hosts. — Fauval (1904) stated that it usually lives in mango trees. 

 Lesne (1924) recorded it living in the wood of Moras alba and trunks 

 of "Kimoungoue" in east Africa, in bamboo in Madagascar, in the 

 branches of letclii (Nephelium lite hi) in Tonkin, and in the wood of 

 grape in Brazil. Miller (1934) recorded this species as attacking 

 piquia (Garyocar villosuni), rambutun (Nephelium lappaceum), 

 rubber (Hevea brasiliensis) , Dipterocarpus sp., Derris sp., guava 

 (Psidium guajava), Casuarina equiseti folia, Eugenia nmlaccensis, 

 cinnamon (Cinnamomum zeylanicum) , Indigo f era anil, cashew nut 

 (Anacardium occidentale) , durian (Durio zibethinus), Tephrosia 

 Candida, Gardenia florida, tamarind (Tamarindus indicus), Hibiscus 

 rosa- sinensis, and mango (Mangifera indica). Beeson and Bhatia 

 (1937) recorded it also as attacking Anacardium occidentale, Artocar- 

 pus hirsuta. Ficus sp., Mallotus philippinensis. Poinciana data. San- 

 talum album, Shorea robusta, Sindora siamensis. Sicietenia mahogoni, 

 Tectona grandis* Terminolia myriocarpa, and Vitex negundo. 



Fabricius (1781) and Olivier (1790) described capucinus and 

 eremita from the same specimen from the Coromandel Coast in the 

 Banks Collection. The synonymy of marginata Fabricius was made 

 by Lesne (1901) after Meinert compared this specimen with capucinus 

 Fabricius and emarginata Fabricius. Lesne (1901) also placed nico- 

 baricus Redtenbacher as a synonym of capucinus Fabricius. 



Xylopsocus castanoptera (Fairmaire) 



Apate castanoptera Fairmaire, 1850, Rev. and Mag. Zool. (ser. 2) 2: 50. 

 Xylopsocus castanoptera Lesne, 1901, Soc. Ent. de France Ann. (1900) 69: 629, 

 635-636; 1926, Treubia 7: 119; Froggatt, 1927, Forest Insects and Timber 



