200 ACADEMY OF NATURAL SCIENCES 



broader near the base ; a broad, yellowish vitta hardly reaching 

 the tip ; a black line from near the base separates the vitta from 

 the rufous margin : body, beneath black, with golden pubescence ; 

 feet and abdomen rufous. 



Length seven-tenths of an inch. 



The body is sometimes rufous. In the disposition of colors on 

 its elytra, this species probably bears some resemblance to R. cur- 

 sor. It is certainly generically distinct from R. lineatum, which 

 [423] is the only true Rhagivm of this country that I have seen, 

 though it is highly probable that there is another species. 



[Belongs to Toxotus. — Lec] 



2. R. CYANIPENNE. — Black ; antennae and feet testaceous ; 

 elytra blue. 



Inhabits the United States. 



Body black, tinged with cupreous, punctured; head densely 

 punctured ; a longitudinal, obsolete, impressed line : antennae 

 rather shorter than the body, testaceous : trophi piceous-yellow : 

 thorax impunctured ; an obtuse tubercle each side : scutel black : 

 elytra violaceous-blue ; punctures numerous, small, profound; tip 

 truncate ; humerus rather prominent : feet testaceous. 



Length two-fifths of an inch nearly. 



A rare insect. I obtained a specimen several years since near 

 Philadelphia, and recently Mr. Nuttall presented me with a speci- 

 men which he captured during his botanical expedition to the 

 Arkansa river. 



In form of body, it very much resembles Leptura coUaris and 

 L. virginea, as figured by Olivier, to which genus I would have 

 referred it, but for the small thoracic tubercles. 



[The type of Gaurotes Lec. Journ. Acad. Nat. Sc. 2d ser. 1, 

 825. Synonyms are Pachyta Servillei Serv.; P. lone Newman; 

 P. Leonardi Hald. — Lec] ^ 



CLYTUS Fab. Latr. 



1. C. HAMATUS.— [Ante 1, 118.] [424] 



2. C. caprea.— [Ante 1, 120.] [425] 



3. C. SUPERNOTATUS. — Reddish-brown ; each elytron with a 

 large white spot behind on a larger black one. 



Inhabits Missouri. 



[Vol. III. 



