83 



The subgenus Hazvaiicola now contains at least two species ; 

 whether the new one now described is the "new species" of my 

 paper of the Proc. Haw. E. S., I, 141, I do not know. As yet, I 

 have seen only a single male taken at Naalehu, Ha wan', by Mr. 

 Swezey, in a sugar-cane field. 



S'tal's two species, Anna pafnielis and pacifica evidently refer 

 to the two forms of 0. grisca, pacifica being the same as typical 

 grisea. 



The following table will distinguish these three species : 



1(2). Prosternum simple; abdominal basal spine of the urosternites 

 rather short, scarcely extending beyond the hind coxae; male 



pygophor pale, with pale styles _ 



[Oechalia typical] consociaRs Boisduval. 



2(1). Prosternum lobulate in front on each side; urostemital spine 

 reaching well beyond the middle coxae or nearly to the fore 

 coxae __ [subg. Hawaiicola, nov.] 



3(4). Broader form, pronotum very distinctly transverse; uros- 

 temital spine shorter. Male styles blackish; posterolateral 

 spinelet on 7th urosternite more distinct. 2. grisea Burmeister. 



(a). Pronotal spines blunt=:grisea typical. 



(b). Pronotal acute, pr6m"ment=var. patruelis. 



4(3). Longer and narrower form, pronotum scarcely transverse, 

 urosternital spine longer, male styles pale; posterolateral 

 spinelet on 7th urosternite scarcely distinct. 3. kaonohi, sp. nov. 



Oechalia kaonohi, sp. nov. 



Male very similar lo grisea, but as may be seen from the dimen- 

 sions, much longer and at the same time narrower. Both head and 

 anterior part of pronotum are distinctly less declivous and the head 

 is distinctly longer. In typical grisea the proportion of the length of 

 the pronotum to its width is 2:1, while in kaonohi it is 2%:1. 



The pronotal angles are roundedly obtuse and scarcely prominent. 

 As stated in the table, the abdominal spine is distinctly shorter and 

 the 7th urosternite is scarcely spinose laterally. The male pygophor 

 is pale and the papillae on the semicircular plate are less in number, 

 while the crenulations on the ventral margin of the same are less in 

 number and feebler. The colouring is similar to that of light-coloured 

 grisea, and the new species will be found, probably, to vary like the 

 latter. 



Length, 12 mill., breadth between lateral angles of pronotum, iV2 

 mill. 



Hab. Hawaii, Naalehu, and other places. 



