27l» 



eeive only occasional showers. They are also nor iiifrc(|U('iitly 

 found in the forests where the slopes are abrupt and in some 

 instances these grasses are to be found growing at only a few 

 feet above sea level. All the spe<*ies when growing in the 

 wind-swept regions have long drooping leaves and rather 

 short stout stems. They are always in bunches or tussocks, 

 often a foot across. 



These grasses appear to have attracted but little attention 

 from the early entomologists. Blackburn found one species 

 of Corylophus. which he recorded as occni-ring (tn grasses 

 which probably occurred in bunch grass. 



Mr. O. H. Swezey first found an endemic iiisect connected 

 with bunch grass in 1906, which Kirkakly described as 

 KeJisia swezcy'i without ii;dication of the host plant and with- 

 oiit recognizing its endemic nature. Ten years later a second 

 species of KeJisM was found by Mr. Swezey in June, 1010. 

 and described as KeJisia enioJoa. by Mr. Muir. Since rhar 

 time much attention has been devoted to collections upon 

 Erar/)-osfis by Swezey, Timberlake, FuUaway, GiflFard and the 

 writer. These investigations have shown that the bunch grasses 

 have a peculiar fauna of their own with several clearly en- 

 demic species, and that the tussocks furnish shelter for several 

 other insects. This fauna has been best worked on Oahu but 

 a few species have been studied elsewhere. It is noticeable 

 that many of the species found in Imuch grass also affect the 

 sand-binding grass, Spovoholus vi)-ginicu.s. 



Our present knowledge of the entomology of the bunch 

 grasses may be summarized as follows: 



COLEOPTERA. 



COCCINELLIDAE. 



Diomus discedens (Sharp). 



This species was originally found by Blackburn and 



described by Dr. Sharp as a Sci/nvnus but indicated as prolta- 



bly forming another genus. ^Ir. Timberlake, who has studied 



the. species, permits me to use his unpublished reference of this 



