118 AMERICAN ENTOMOLOGY. 



Clytus SPECIOSUS. — jSpeciJic character. Black ; thorax dila- 

 ted ; elytra about five-banded ; feet yellow. 



C. speciosus nobis, Long's Second Expedition, vol. ii. p. 290. 



Body deep black ; head with a band passing from the vertex 

 round behind the eyes, and meeting a band which is round the 

 mouth above, yellow ; a yellow band on the front, immediately 

 above the antennae, terminating in the sinus of the eyes ; mandi- 

 bles yellow ; nasus and labrum pale yellowish, glabrous ; antennae 

 all black : thorax subglobular, depressed ; an oblique spot each 

 side before, and another oblique, longer spot or abbreviated line 

 each side of the middle, yellow ; an arcuated, impressed line each 

 side of the middle ; scutel yellow ; two small yellow spots before 

 the scutel under the thorax : elytra with yellow bands ; the first 

 band forms a regular arch, of which the scutel represents the 

 key-stone ; the second band is in the form of the letter W, each 

 V receiving a termination of the first band ; the third band is 

 nearly transverse, placed upon the middle ; fourth band arcuated 

 each side from the suture obliquely backward, parallel and near 

 to a large terminal spot or band, which on each elytrum is ovate, 

 with a central black spot; tip with a short obtuse tooth: humerus 

 with three small spots : postpectus spotted with yellow : thighs 

 with a brown line on the inner side : venter yellow. 



Ohs.~ During a short repose of Major Long's party on the bank 

 of the Wisconsin river, preparatory to ^crossing that stream, this 

 unusually fine insect attracted the eye of that officer, as it rested 

 on the bark of a hickory tree. Another specimen belongs to the 

 Philadelphia Museum, probably taken in Pennsylvania. As these 

 two are the only individuals that have yet occurred, the species 

 must of course be considered as rare. 



The upper figure of the plate. 



[Subsequently figured and described as C. Hayi Gray, Grifi". 

 An. Kingd. j belongs to Arhophalus Serv. as amended by me. — 

 Leg.] 



Clytus hamatus. — Specific character. Black; thorax with a 



yellow margin; scutel, two bands, and elytral spot, yellow. 



C. hamatus nobis, Journ. Acad. Nat. Sci. vol. iii. p. 423 



Desc. Body black; antennae rufous, filiform; terminal joints 



black; palpi piceous : thorax hairy; the hairs cinereous ; margin 



yellow, which color is interrupted behind : scutel yellow ; elytra 



