COLEOrXERA. 17,3 



Retal lines coalescent laterally near the median line forming transverse 

 ca^rinae which are abruptly bent posteriorly along the median line toward 

 the base, so that from the former, in the basal half, tfie long retal lines 

 extend outward, giving an arborescent appearance. Toward the sides of 

 the disk the maculae are completely enclosed by the retal lines. The 

 maculae have an interior elevated ring, and within this, a verrucate seti- 

 gerous puncture, just behind the middle of the macula Strigafa. 



Maculae distinct toward the sides of the disk, becoming smaller and con- 

 fusedly broken up in the middle, without transverse lines ; the maculae 

 even when distinct do not contain an elevated ring, but the surface is 

 rugulose with partial indications of a ring at some points ; each contains 

 an indistinct and very small verrucate setigerous puncture. 



aeneogaster. 



Maculae usually distinctly enclosed by the retal lines at all points of the 

 disk, but very slightly smaller in the middle ; each contains an interior 

 and usually indistinct ring, and within the ring, the usual verrucate 

 puncture. Prothorax widest before the middle 1... nan Ilia. 



Maculae nearly as in the preceding species except that the interior ring is 

 smaller, stronger, and at a greater distance from the retal lines, and the 

 maculae are more broken up near the middle. Prothorax widest behind 

 the middle siniiola. 



Maculae much larger than in any of the preceding species, very distinct 

 throughout the disk ; retal lines very fine, within them scarcely any trace 

 of an elevated ring, their surface being flat and very finely and strongly 

 granulose. Near the middle of the disk there are two minute impressions, 

 and toward the base, a narrow and distinct longitudinal canaliculation. 



aenescens. 



A. Strigata Lee. — Tr. Am. Phil. Soc. 1859, p. 215. — Form broad; sides 

 parallel. Color bronzed above, metallic greenish beneath ; elytra obscurely 

 punctate and very strongly and roughly asperate, also irregularly undulated 

 throughout ; pronotum distinctly more than twice as wide as long widest at 

 or very slightly behind the middle ; sides broadly arduate, feebly sinuate just 

 behind the middle. Antennae long and slender, first two joints very feebly 

 reticulated, second very slightly elongate, oval, very much shorter than the 

 third, third and fourth sub-equal in length, the latter about twice as long as 

 wide. Prosternal intercoxal process very wide, lateral terminal teeth very 

 broad and strong, apex slightly acute ; apical tooth long and slender, acumi- 

 nate at tip, sides almost parallel, ■almost filling the cavity of the mesosternum ; 

 sides of the latter not parallel, rounding behind ; maxillary palpi long and 

 rather slender, second joint longer than the third, the latter much longer 

 than wide, fourth much shorter than the second and third together. Length 

 5.5-7.0 mm. ; width 2.2-2.8 mm. 



California, 7. 



Besides the sexual character indicated above, another very remark- 

 able one may be mentioned beautifully displayed in the present species, 

 viz.: the inferior genital armor in tlie male is not punctate but finely 

 Cont. Part II. 8 January, 1885. 



