OF WASHINGTON, VOLUME XIV, 1912. 183 



Coupled with the different host plant, these characters n ay 

 later lead to the splitting up of this species. 



From these records it is quite obvious that the specirs rray 

 become of some economic importance to tropical horticul- 

 turalists and its transportation to other countries where the 

 avocado is grown should be more closely guarded against. 

 Further observations are urgently needed to determine the 

 probable extent of its depredations. Plate ix represents a 

 pinned adult and lateral and ventral views of the pupa. 



Mr. Schwarz said that the genus Heilipus, with its several 

 hundred species, naturally will have quite a variety of food 

 habits. One species, H. gnttatus Boh., w r as bred by him last 

 year from a section of a felled tree (probably a Ficu^) at Paraiso, 

 Panama, and was also collected at wounds on tree trunks in 

 Guatemala. H. albovenosns was found by him at Tampico, 

 Mex. in December, 1910, on the fruit of Ncctandra sanguined? 

 (as determined by Dr. Rose), which has been formerly include d 

 in the genus Persea, with its probable larva within the fruit. 

 An6ther species, H. e.legans, breeds under the bark of camphor 

 trees in Jamaica, as he noted some years ago (Proc. Ent. Soc. 

 Wash., vol. ix, 1909, p. 15). Only one species of the genus, 

 H. squamosus, is native in the United States (Georgia and 

 northern Florida). It is extremely rare in collections and its 

 habits are still unknown, but it may be found to develop in 

 the fruit of Persea borbonia (P.caroliuensis). A genus allied 

 to Heilipns, Calvertius arancarice, has been described by Dr. 

 D. Sharp (Ann. and Mag. Nat. Hist., Jan., 1891, p. 150) from 

 Chile, where its Iarva3 bore in the trunks of Arancan'n imbri- 

 cata. It may be added that three other small rhynchophorid 

 beetles have been found to live in the seeds of the avocado. 

 One of them is a calandrid beetle, Caulophilns lathiasits, Say, 

 found in seed of the "Trapp" variety of avocado from Miami, 

 Florida, in November, 1909. The second is a small unde- 

 scribed scolytid of which a few specimens were found in the 

 seed of an undescribed wild species of Persea, discovered by 

 Dr. Henry Pittier at Boquete, 2,100 meters altitude, on the 

 slopes of the Volcan de Chiriqui, in Panama, in April, 1911. 

 The third is the cosmopolitan coffee weevil, Arcecerus fascicu- 

 latus De G., which appeared in numbers in old seeds from Liv- 

 ingston, Guatemala. 



