52 Mr. G. R. Waterhouse : Contributions to the Entomology 



ber, and likewise examples of both sexes. Of G. Hopei I have seen 

 many hundreds of indi\ddnals. The two last-noticed species were 

 found together by Mr. Bridges^ the G. Whitei was found in a dif- 

 ferent locality. The three species are in the collection of the 

 British Museum, as well as the Gyriosomus marmoratus and G. 

 elongatus, described by me (from the same collection) in the ' An- 

 nals and Magazine of Natural History' for October 1843, vol. xii. 

 pp. 258—260. 



17. Gyriosomus Bridgesii, Waterh. 



Common in the vicinity of Coquimbo : like most of the species 

 of Nyctelida it hides itself during the heat of the day and comes 

 forth in the evening. It feeds upon the Malvaceous plants (genus 

 Cistmna) . 



18. Gyriosomus marmoratus, Waterh. 



Hab. Near Villa Vicuna, valley of Elqui, province of Coquimbo. 



19. Gyriosomus Luczotii, Guer. 

 Hab. Vicinity of Coquimbo. 



20. Gyriosomus elongatus, Waterh. 



Found in diy sandy plains between Huasco and Coquimbo. 

 Makes its appearance in dull weather. 



21. Scotobius rugulosus, Guer. 



Frequent in cellars of the houses of Valparaiso. 



22. Gonogenius brevipes, Waterh. 



Found (often in company with Physogaster tomentosa) under 

 stones at Copiapo. 



23. Psammetichus crassicornis, Waterh. 



Hab. Near Huasco. Found under plants of the Cactus tribe, 

 and under stones. 



24. Naupactus Bridgesii, Waterh. 

 Hab. Uspallata. 



25. ^gorhinus phaieratusj^r'ichs. Genvi& Lophotus, Schonh. 

 Hab. Valparaiso. Found on the trunks of trees, especially on 



the peach, apple and pear. 



26. Listroderes costirostris, Schonh. 



Hab. Coquimbo. Found on the stems of shrubs [Helianthus 

 thurifer), generally close to the ground. 



27. Listroderes subcostatus, Waterh., Proc. Zool. Soc. Dec. 1841. 

 From the Quebrada de Vergara, west side of the Andes, pro- 

 vince of Colchagua. 



28. Listroderes pilosus, Waterh,, /. c. 

 Hab. Same as last. 



