212 



B. Southwick near New York city. This pretty species is most 

 nearly related to 6". iiitricatus Uhler, from which however it is 

 quite distinct. A pair of the latter, which apparently is a rare 

 species, 'was captured at Agricultural College, Mich., by Mr. G. 



C. Davis in Aug. and vSept. 



12. THAMNOTETTIX PERPUNCTATA, n. sp. 



Allied to T. Fitchi but smaller and more slender, very similar in color 

 and ornamentation to Deltocephalus 7iigrifrons Forbes. Length y/^ mm. 



Vertex nearly flat, % longer on the middle than next the eye, color 

 pale yellow, greenish testaceous on the pronotum, vertex obsoletely cloud- 

 ed with fulvous near the eyes and behind the apex ; four dots placed on 

 the anterior edge superiorly, two on each temple and another on each 

 ocellus; antennal pits, sutures of the face, a line on the middle of the 

 clypeus expanded near the apex, and about six arcs on each side of the 

 front, black. In typical examples the black frontal suture is continued 

 around each compartment of the front connecting with more or less of the 

 lateral arcs, or the front may be black with an interrupted median line and 

 about five short arcs yellow. Cheeks with a brown discal cloud. Abdomen 

 and breast black. Connexivum, margin of the tergum and sometimes the 

 narrow edge of the propleiu'a yellow ; tips of the coxse and the legs pale 

 testaceous, the femora sometimes clouded with brown. Pronotum with 

 about five pale vittee sometimes nearly obsolete. Scutellum yellow, at 

 times marked with a brown longitudinal vitta, impressed line black. 

 Elytra pale, subhyaline, sometimes clouded toward the apex and on the 

 tip of the clavus, nervures greenish white. Wings whitish hyaline, highly 

 iridescent, nervures slender, browa. Ultimate ventral segment of the 

 female a little concave behind, sometimes with a small median tooth ; 

 pygofers acute at apex, hardly exceeded by the stout oviduct. Valve of 

 the male short and rounded, the plates triangular, constricted near their 

 -?pex, edge but feebly arquated at base and fringed with long white bristles. 

 In D. 7i7grif7-ons the plates are broader and more obtuse at apex, with the 

 edges rectilinear or slightly convex and armed with shorter bristles. 



This in.>,ect, though quite distinct generically from DeltocepJi- 

 aliis nig )■ if ions is difficult to distinguish in its specific characters, 

 the markings are almost identical and the form of the facial and 

 genital pieces differ but little. D. nigrifrons is much the stouter 

 insect and has a broader front and vertex, the latter more con- 

 vex and obtuse before and marked with a transverse brown 

 cloud before the middle in ?iigrifrons. T/i. Fifc/ii is a larger 

 insect with but four black spots on the anterior edge of the 

 vertex. 



New York, N. Carolina, Mississippi. Described from num- 

 erous individuals of both sexes received from Mr. Howard Ewart 

 Weed, taken in Miss. The N. C. specimens were collected on 



