108 



PSYCHE. 



I September— October iSSS. 



angles distinct scaicely rounded, some- 

 what obliquely wider to the middle, 

 thence rounded and inflexed at the 

 posterior angles which arc rounded, 

 usually a little wider behind the middle, 

 a median impiessed line more or less 

 punctate, disc sparsely and irregularly 

 punctate, sides more closely, the usual 

 lateral fovea distinct, basal miirgin 

 distinct; scutellum triangidar as usual, 

 smooth or with a few punctures, some- 

 times impressed ; elytra about as wide 

 as the thorax, a little narrower at the 

 base, broadly rounded to the apex 

 which is obtuse, the margins slightly in- 

 flexed at the suture, striae strongly im- 

 pressed and crenately punctured, rather 

 more coarsely than in (5a/y/,' intervals 

 convex, smooth, sutural striae embra- 

 cingthe scutelhun and reachingthebase, 

 second stria more or less interrupted 

 by the sutural and not reaching the 

 base, margin of elytra much wider 

 anteriorly ; anterior tarsi with joints 

 one to four subequal, last joint nearly 

 equal to the three preceding ; spurs 

 of anterior tibiae long in l)oth sexes, 

 reaching the apex of the third joint of 

 the tarsi or beyond; mesosternum cari- 

 nate between the coxae, produced for- 

 ward in a rounded crest; middle and 

 hind tibiae with three transverse ridges 

 on the outer face, the upper one in- 

 complete, middle tibiae shorter than 

 the last, the tarsi also a little shorter 

 with the first joint about equal to the 

 next three together, while in the last, 

 the second, third and fourth joints are 

 a little more elongate and together ob- 

 viously exceed the first in length ; 



spurs of middle and hind tibiae long 

 and slender, the longer one of the mid- 

 dle tibiae reaching the apex of the 

 third joint, that of the hind tibiae 

 reaching the apex of the second joint ; 

 inner apical process of the hind tibiae 

 subparallel, rounded at tip and one- 

 half as lung as the first joint of the 

 tarsi. The $ has tlie base of the an- 

 terior thighs below with a conspicuous 

 oblique ridge or broad tooth, the an- 

 terior tibiae with the third tooth from 

 the apexdeflexed and produced beneath, 

 sometimes meeting a slight angidation 

 of the inferior carina, this carina at 

 about or.e-third from the base has a 

 prominent tooth. The 9 has the an- 

 terior thighs and tibiae simple. 

 Length 13. -iS. mm ; .53-. 72 in. 

 Specimens are before me from Mass., 

 D. C. and N. C. and I infer that the 

 species has a similar distribution with 

 our common species. It appears to 

 have been sufficient!}' rare to have 

 escaped the earlier authors and later 

 has probably been confounded with 

 baiyi ixowx wliich it differs apart from 

 the sexual characters by the always 

 distinctly black color without any 

 metallic reflections, the more advanced 

 clypeus, the less sparsely and rather 

 more strongly punctured thorax, the 

 mososternal crest roimded instead of 

 acute, the hind tibiae with the upper or 

 third ridge more developed and the 

 apical process longer and narrower at 

 base. So far as observed the emargina- 

 tion of the second joint of the antennal 

 club is well marked. 



In dedicating this very distinct 



