August 1S92. 



PSYCHE. 



307 



Another group, for which I propose 

 the name Eutettix, is intermediate in 

 its characters between Thamnotettix and 

 Athysanus. In form the species resemble 

 Phlepsius, being broader and stouter 

 than in Thamnotettix. The vertex is 

 rounded anteriorly, and more of less 

 transversely impressed behind the apex ; 

 the front is nearly as wide as in Athy- 

 sanus ; the elytra are proportionately 

 shorter than in Thamnotettix, and mod- 

 erately valvated at the apex, with but 

 one transverse nervure between the first 

 and second sectors. The sides of the 

 pronotum are shorter than in Thamno- 

 tettix and ecarinate. 



The type of this genus is Thamno- 

 tettix hn-ida V. D. (Can. ent., v. 22, p. 

 250, 1S90. ) yassus seminudus Say and 

 J. jucundiis Uhl. seem to belong here, 

 but the latter has the head more pro- 

 duced and tumid without the transverse 

 impression on the vertex. All these 

 species recall the genus Phlepsius very 

 strongly, but there the sides of the pro- 

 notum are always carinated and the 

 elytral areoles are more distinctly in- 

 scribed with brown pigment lines. 



Thamnotettix subaenea Van Duzee 

 bears a decided resemblance to lurida, 

 hut the sides of the pronotum are 

 strongly carinated and the elytral char- 

 acters are those of Thamnotettix, in 

 which genus it should undoubtedly be 

 retained notwithstanding the difference 

 in the form of the vertex and its general 

 resemblance to lurida. 



In the genus Athysanus I have placed 

 the species ageeing with obsoletus 

 Kirschb., which I have considered our 



most typical species. In these the head 

 is about as wide as the pronotum, but 

 moderately produced before with the 

 anterior edge rounded and the apex 

 obtuse. Elytra broad scarcely longer 

 than the abdomen, or more frequently 

 shorter, broad and usually truncated at 

 apex, the apical areoles short and the 

 appendix narrow or wanting ; first sector 

 connected with the second by but one 

 transverse nervure ; sides of the pronotum 

 short, but feebly carinated. Here belong 

 obsoletus Kirschb., plutonius Uhl. and 

 comma V. D. of our fauna. The fol- 

 lowing species are smaller, with the 

 head more produced and conical, the 

 sides of the pronotum longer and with- 

 out a carina : curtisii Fitch, bicolor 

 V. D. and obtutus V. D. 



Near Athysanus comes a form widelv 

 distributed in this countrv, with narrow, 

 pointed elytra for which I have estab- 

 lished the following genus : 



ACINOPTERUS n. g. 



General appearance of Allygus, but with 

 the elytra strongly narrowed posteriorly, and 

 the tip acute. 



Head narrower than the pronotum, 

 rounded, or somewhat produced before, with 

 the apex subacute, hind edge broadly con- 

 cave. Vertex rather short, sloping, convex 

 or more or less impressed behind the apex, 

 surface punctured, the anterior submargin 

 obscurely transversely rugose, passage to the 

 front rounded. Front rather broad, at the 

 base slightly encroaching upon the apex of the 

 vertex, suddenly narrowed at tip, Clypeus 

 much widened apically. Lorae large. Cheeks 

 wide. Pronotum broad and rather short, 

 anterior edge broadly arcuate, posterior 

 nearly straight; sides long, oblique, cari- 



