410 TERTIARY INSECTS OF NORTH AMERICA. 



state, but it is quite possible that some of the undescribed species in the 

 European Tertiaries referred to Lygsens may be found on examination to 

 belong here or to other Pyrrhocorina, since the two species found at Floris- 

 sant closely resemble the species of Lygaeus from the same beds, and until 

 their want of ocelli was noted were placed next to them. 



Table of the species of Dyudervng. 



Middle of body belted with a light band 1. D. c'tm -tux, 



Body uniform in color 2. D. unicolor. 



1. DYSDERCUS CINCTUS. 

 PL 24, Figs. 11, 13, 14. 



Head rounded, subtriangular, the front broadly rounded with a slight 

 angulation (Fig. 13 is inaccurate, having been drawn before the stone was 

 broken away from the head). Surface transversely and finely corrugated, 

 otherwise smooth. Thorax coarsely, obscurely, and distantly punctate, as 

 are also the femora. The scutellum appears to be nearly smooth. Heme- 

 lytra finely punctate along impressed lines following the course of the prin- 

 cipal veins. Whole body dark, but transversely banded with lighter color 

 in a rather broad belt, which crosses the posterior half of the thorax and 

 more distinctly traverses the body and closed hemelytra at the tip of the 

 scutellum. 



Length of body, 8.65 mm ; antennae, 3.75 mm ; breadth of body, 3.5 ffim . 



Florissant. Nine specimens, Nos. 1426, 1745, 3199, 4248, 5865, 7161, 

 9890, 10303, 13561. One of the specimens figured, No. 5865, was mislaid 

 at the time of description of the species, but undoubtedly belongs here. 



2. DYSDERCUS UNICOLOR. 



Body uniformly dark fuscous throughout, with no indication of any 

 transverse lighter-colored bands. Head smooth, antenna; concolorous. 

 Thorax and scutellum very coarsely and distantly punctate. The abdomen 

 similarly but more obscurely and still more distantly punctate, the closed 

 hemelytra slightly surpassing its extremity. 



Length, including the closed hemelytra, 8.5 mm ; antenna;, 3.o""' : 

 breadth, 3.5 mm . 



Florissant. Two specimens, Nos. 3230, 10340. 



