194 long's second expedition. 



dusky, reaching to the base ; the margin at tip is broad so as to 

 resemble a yellow spot on each elytrum ; edge, like that of the 

 thorax, a little elevated, particularly at tip ; abdomen long, yel- 

 low; segments more or less tinged with rufous at base; tail 

 dusky or black; feet more or less dusky, with yellow incisures, 

 sometimes nearly all yellow ; venter somewhat sericeous. 



Length three-tenths of an inch. 



This species is not uncommon in Pennsylvania, and it is also 

 an inhabitant of the North-west Territory. 



[Not a Cerambycide, but a Telephoride, allied to MaJfhinus, and 

 forming the genus Tryplierus \iQ(i.,==Lygerus Kiesenwetter. — 

 Lec] 



HISPA Linn. 



H. viTTATA Fabr. This species varies much in color, so much 

 so indeed, that more than one species might be formed of it by a 

 naturalist who relied implicitly on the [293] description which 

 Fabricius gives of the insect. He describes the thorax to be 

 " obscure aeneus, nitens lateribus rufescentibus," and the elytra 

 " obscure aenea, nitidula : vitta lata, fusca." Now, I have a 

 specimen, taken near Philadelphia, which agrees very well with 

 these characters, although the thorax exhibits a tinge of rufous, 

 and has the additional character of an obscure yellowish-brown 

 exterior margin of the elytra, which might however, on a super- 

 ficial examination, be very readily overlooked. But several 

 specimens which we obtained in the North-west Territory, though 

 evidently the vittata, diifer so widely from the quoted description, 

 that they would probably be considered as altogether new by an 

 entomologist who had not a specimen which could serve as a link 

 to the Fabrician specimen. These individuals all correspond 

 perfectly in having a bright rufous thorax, dark steel-blue elytra 

 with a narrow rufous fillet and lateral margin; the venter also is 

 very dark steel-blue. 



H. MARGINATA. — Fulvo-sanguiueous ; elytra with sanguine- 

 ous lines ; feet yellowish. 



Inhabits United States. 



H. marginata Melsh. Catal. 



Head with an acute impressed line ; antenna) dark rufous, 

 not surpassing the thorax ; thorax with dilated irregular punc- 



