94 AMERICAN ENTOMOLOGY. 



wards the tip : venter with a transverse thick line in the middle, 

 and an anterior longitudinal one ; lateral and posterior margins 

 yellow, the former four-dotted each side ; beyond the middle, are 

 two large, slightly indented, sericeous spots. 



Obs. This singularly marked species is rare in Pennsylvania. 



The upper left figure of the plate. 



Tetyra cinctipes. — Specific character. Dull, testaceous; 

 feet pale, with fuscous spots. 



Desc. Body above, dull, testaceous, or brownish, with close 

 set, rather large, profound punctures : head black, acutely cari- 

 nated, and with a very obvious tubercle each side, near the base; 

 tip emarginated : antennae piceous : terminal joint somewhat di- 

 lated : thorax with an obsolete glabrous line near the middle, and 

 three tubercles on the anterior submargin, the intermediate one 

 very obtuse, and sometimes obsolete ; anterior angles with a tu- 

 bercle, and another on the lateral edge behind the middle : an- 

 terior thighs, and all the tibiae blackish, with one or two pale 

 bands : intermediate and posterior thighs pale, with two bands, 

 and base blackish. 



Obs. Inhabits the Middle States. It is one-quarter of an inch 

 in length. 



The lower right figure of the plate. 



Tetyra violacea. — Specific character. Dark bluish-viola- 

 ceous ; venter with a fulvous line before the middle, and a spot 

 at tip. 



Desc. Body dark bluish-violaceous, with large punctures : cly- 

 peus with the lateral edge parallel ; anterior edge indented in the 

 middle : thorax, posterior angles rather prominent, obtuse : ante- 

 rior thighs with a prominent spine beneath : anterior tibiae di- 

 lated towards the tip : postpectus, middle incisures edged with 

 opake black : venter with a bright fulvous line extending from 

 between the posterior feet to the middle, where it is gradually a 

 little dilated : behind the middle are two slightly indented large 

 sericeous spots ; tip with a small bright fulvous spot. 



Obs. Closely allied to the preceding; I caught it on the mar- 

 gin of St. John's river, in East Florida. 



The upper right figure of the plate. 



Tetyra alternata. — Specific character. Rufous ; beneath 

 yellow ; scutel with minute, abbreviated black lines. 



