104 G. H. HORN. M. D. 



A very beautiful species with notable resemblance in form to Ophites, 

 as remarked by Dr. LeConte. The style of coloration is certainly re- 

 markable, the head being partly reddish yellow and black, the thorax 

 black, elytra reddish yellow, the first two abdominal segments black, the 

 third, fourth, fifth and base of sixth reddish yellow, the sixth otherwise 

 and seventh black. 



A very rare species, of which I have seen but four specimens from 

 Pennsylvania, North Carolina, Alabama and Kansas. 



While the preceding pages were passing through the press there ap- 

 peared a pamphlet, privately printed by Lieut. Casey, in which, among 

 other things, four new species of Crytobium are described from uniques 

 in three and two specimens in the fourth. These are — 



C. cdpito. Is a somewhat immature male of C. pullipes Grav. 



C. convergens, parallelum and proximum are specimens in various 

 stages of maturity of 0. floridanum Lee. They are all, moreover, 

 males of the form described in the preceding pages as imperfect, and not 

 females, as described by Casey. 



The actual types of the above are before me, they having been, on my 

 application, kindly loaned me for study by the Museum of Comparative 

 Zoology at Cambridge, to which Mr. Casey has presented his entire col- 

 lection. 



In order to give some idea of the ventral differences in the males I 

 have prepared the accompanying outline plates which are rather dia- 

 grams than exact figures of the modifications spoken of in the preceding 

 pages. Many of the figures are practically repetitions, but I have given 

 them all to show in what species the modifications have been observed. 



