NATURAL SCIENCES OF PHILADELPHIA. 395 



dejeanii and the larger punctures of the other two species. The whole surface 

 is very finely granulate, causing the subopaque appearance. For this species 

 I am indebted to C. F. Hoffman, Topographer of the Geological Survey of 

 California, who discovered it while exploring the high Sierras near the head 

 waters of King's and Tule" rivers. Two specimens, both males, were found. 

 It is to be hoped that further collections maybe made in this region, as all the 

 species collected were either new, or served to illustrate the descent of Arctic- 

 species. Omus audouinii has been found in the high ridges of the Coast Moun- 

 tain, near Santa Cruz, and californicus has been sent me from the same region 

 by Dr. J. G. Cooper. Doubtless many interesting discoveries will yet be made 

 iu the high mountain region^ of California and Oregon. 



CICINDELA Liun. 



senilis, atra, opaca, fronte albo-pilosa, granulato-rugosa, thorace latitu- 

 dine breviore, postice angustato ; elytris pone humeros sensim latioribus, pos- 

 tice baud serrulatis, lunula humerali oblique prolongata, fascia media perpen- 

 diculariter refracta ad marginem vix latiore ; subtus viridi-asnea, pleuris albo 

 pilosis ; labro albo, obsolete tridentato. 



Mas palpis labialibus articulo ultimo pallido. Long. -47. 



Related more closely to generosa, though much smaller than any 

 of the species of that group. The form is rather robust, the sides of 

 the elytra well rounded, with the apex scarcely serrate. The mark- 

 ings are rather broad. The middle fascia enters at a right angle to 

 the margin, bends rectangularly, the longitudinal portion being 

 longer. Color above black, almost entirely devoid of any metallic 

 lustre. 



I obtained this species while in San Francisco, of M. Lorquin, from a large 

 box of insects said to have been collected in California. I bave, however, no 

 doubt as to the truth of the locality, as all the other species were undoubtedly 

 Californian ; but as some doubt always obtains when specimens are not actu- 

 ally obtained in their native regions, I have thought it advisable to state the 

 facts, that the locality of the species might hereafter be verified. 

 Two specimens are in my cabinet, both males. 



v ib ex, viridis, fronte pilosa, utrinque subtiliter striata, thorace latitudine 

 breviore, subquadrato, postice vix angustato ; elytris pone humeros obtusos 

 sensim latioribus, postice hand serrulatis, punctato-granulatis, lunula hume- 

 rali oblique prolongata, interrupta, fascia media extus imperfecta obtuse re- 

 fracta, lunula apicali interruptis ; subtus cyaneo-aenea, pleuris albo-pilosis; 

 labro albo tridentato. 



Mas palpis maxillaribus nigris, palpis labialibus articulo penultimo pallido. 

 Femina latet. Long. -48. 



Fort Klamath, Oregon. The relationship of this species is evi- 

 dently with oregona and its allies, differing in its more elongate form 

 and the absence of the serrulations usually found in the tips of the 

 elytra in the species of this group. The lunules are both interrupted. 

 The extension of the humeral being oblique. The transverse portion 

 of the middle band is at a right angle to the margin, and the longitu- 

 dinal portion oblique. The labrum is distinctly tridentato, the front 

 covered with rather long erect hairs. The color is bright green. 



For this species I am indebted to Dr. H. M. Cronkbite, Act. Assist. Surg. 

 U. S. A., by whom many valuable species were collected during his residence 

 in Oregon and California. 



In the accompanying wood-cut the engraver accidentally cut away the sub- 

 apical spot. It is very small, however, and situated between the apex of the 

 apical lunule and the end of the middle fascia, being rather nearer the former. 



gabbii, modice elongata, subcylindrica, supra olivaceo-asnea subnitida, 



1866.] 



