220 ENTOMOLOGICAL NEWS. [Sept., '03 



of Philadelphia. Argia violacea, 2 9 ; Nehale7inia posita, 



3 ^ , 3 9 ; Enallagma durum, 2 9 ; Ischnura verticalis, i 9 ; 



Libelhila auripe?i?iis , 14 ^,59; ^. cyanea \ % ; L. axillena 



vibratis, 2 9 ] L. pulchella, 4. S , i 9 ; Plathemis lydia {trimacu- 



lata), I $ , 2 9; Mesotheniis simplicicollis , i %. — Philip P. 



Calvkrt.] 



■ ^•» • 



Palaeoxenus (Cryptostoma) Dohrnii Horn. 



By a. Fenyes, Pasadena. Cal., May 23, 1903. 



I found to-day a small colony of this beautiful Eucnemid 

 under the bark of sugar pine at Wilson's Peak (5800 feet 

 above sea-level). The beetles were congregated in a spot of 

 about a square foot area, under the bark of an old sugar pine 

 trunk, and owing to their rather sluggish locomotion, were 

 easily bottled. Both sexes were represented, but no difference 

 in the structure of the antennae is noticeable, in accordance 

 with the corrected statement of Dr. Horn, who in consequence 

 changed the generic name from Cryptostoma to PalcEoxenus, 



When Horn described the species (January, 1878), he only 

 had one female in his hands, and thought that it belonged to 

 Cryptostoma. In his monograph of the Eucneminae, etc. 

 (January, 1886), he states : " This species is the only brightly 

 colored form in our fauna. The specimen in my cabinet was 

 given me by Dr. C. A. Dohrn, who possesses another, which 

 was said to have been collected at San Diego, Cal., but as I 

 have found at least one other species in the same lot from 

 Yucatan, this species may be from that region." 



Prof. H. C. Fall, in his List of the Coleoptera of Southern 

 California (1901) says: '' PalcBOxenus, P. dohrnii, a species 

 said to have been found near San Diego, but this is probably 

 an error, as is suspected by Horn ; the species is quite surdy 

 tropical." 



It is evident from the above quotations, that the species has 

 never been collected again since its description, which was 

 published twenty-five years ago ; a very noticeable circum- 

 stance, as the beetle is of large size (.60 inch, 15 mm.) and is 

 brightly and strikingly colored. 



