57 



Little else is known of the habits of Reduviolus and its allies. 

 Scott has described a neotropical genus (18) of which the species 

 live en famille with colonies of Spiders. R. capsiformis is found 

 plentifully here in dry grass with the little introduced Spider 

 Erigone vagans, but I have not observed any such habits as 

 those related by Scott. 



Very little is known of the parasites of Nabidae, in fact the 

 only record of which I know is that, by Swezey, of R. capsi- 

 formis by the Mymarid Polynema reduvioli, one to each tgg (i^j. 



We see (22a) that three species each are apparently peculiar 

 to Kauai, Oahu, Molokai and Hawaii ; and two to Maui, while 

 none is peculiar to Lanai ; three are throughout the islands, one 

 of the latter indeed being almost cosmopolitan, 



REDUVIOLUS W. Kirby (1837). 



All the Hawaiian forms fall at first under the typical sub- 

 genus {except that some of them zvhich are undoubtedly sprung 

 from one of the others, have annulated antennae), inasmuch as 

 they are characterized by the head not being strongly narrowed 

 behind the eyes, by the wing-hook originating from the "con- 

 necting vein" close to the ''subtended vein," and by the uros- 

 ternites lacking denuded patches and being well limited from 

 the uropleurites (23). 



For those forms which are apparently always brachypterous 

 (almost apterous), and which lack ocelli or have them only very 

 minute, the pronotum scarcely wider basally than medially, etc., 

 T have proposed a mutation-name, Nesotyphlias. It is not strictly 

 a genus, or even perhaps, a subgenus, in an exotic sense, but it 

 is certainly not equivalent to the ordinary brachypterous forms 

 of the genus in Europe and North America. The Hawaiian 

 Fauna is very peculiar and must be treated in a special manner. 



As there is not the sli.ghtest chance that any of the forest, 

 endemic, forms will be found elsewhere, I have tried rather to 



(18). 1881, Ent. Mo., Mag., XVII, 272. 



(19). 190^, Bull. H. S. P. Ent., I, 235. 



(22a). Bj^ the table on p. 56. 



(23). Previously, I have used the terms "sternites," "pleurites," 

 etc., in this connection, but the fact that, strictly, the parts of the 

 sterna, nota and pleura are sternites, tergites and pleurites, res])ective- 

 ly though not usually so termed, renders it advisable to prefix Pack- 

 ard's "uro", when abdominal parts are to be indicated. "6th uro- 

 sternite" is evidently less cumbersome than 'Bth ventral segment of 

 the abdomen.' 



