149 



produced, the tubercles near the scutellum covered with dense appressed 

 pale setae and very conspicuous. The punctures are close, coarse and 

 distinct. The basal abdominal segment beneath has the punctures dis- 

 tinct on the middle portion, but they are not close nor coarse on that 

 part. Length, 2.75-3.5 mm. 



Hab. Oaliii, Mt. Kaala (July 9, 191G, O. 11. Swezey). 

 Twelve examples, one or two l)eiiig iiniuatnre and newly 

 emerged, on Enphorhia. 



Proterhinus euphorbiae n. sp. 



A red species, the thorax and head often more sordid, the elytra with 

 dark (black or fuscous) spots. The club joints, or at least the two basal 

 ones, usually appear dark compared with the preceding joints of the 

 antennae. The clothing of the insect consists of golden squamosity 

 (fading, no doubt, to whitish) while the elytra bear also conspicuous 

 white erect setae, which are quite numerous on the apical portion. 



Head without a raised transverse ridge or constriction behind the 

 eyes, which are only of moderate size. The antennae are very slender 

 (more so than in the preceding) with distinctly 3-jointed club. The 

 rostrum of the female is very smooth and shining, with the punctate 

 grooved lines extremely fine, though more developed in one example 

 than in the others. Pronotum not at all wide, the three impressions dis- 

 tinct, but varying to some extent, the hind angles are rendered distinct 

 by a condensation of the squamous covering, so as to form a pale spot 

 at that point in dorsal aspect. Elytra long, arcuately emarginate at the 

 base, so that the humeral angles are acutely produced, the golden squa- 

 mosity absent from the dark spots or markings, which are chiefly placed 

 about the middle or on this and the hind part of the surface. The 

 basal abdominal segment is coarsely punctured even on its middle por- 

 tion. Length, female, 2.5-3 mm- 



This species is I think evidently allied to P. robustns and the variable 

 P. hcfcrostictus, which are both found in the same neighborhood, thougli 

 the former (as well as the latter) is now known to me to occur also in 

 the Koolau Range. P. robustns is distinguished at once by its antennal 

 characters. P. hctcrosticttis differs from the species now described in its 

 less narrow and elongate elytra, different pronotal structure, etc. P. eu- 

 phorbiae, though found with I', cuops. is not at all closely allied to it, 

 the elytra are only obsoletely tuberculate on each side of the scutellum, 

 or at least the tubercles are not rendered prominent by a special clothing 

 as in the other, and the punctures are much less gross. 



Hab. Oahn, i\It. Kaala (July 9, 191G), three females; 

 the same hnt on the west side (June 1, 1919), two females 



