McNKII.I. KKVISION OK 'IIIK TKIIXAI.IN/I'; ()}■ NOk'JII AMKNK A. 209 



The last ventral sepjinerit of the male is hori/,(Mital, elon/^ate, < oiiir al 

 and four times as long as the penultimate segment. 'l'\ni valves of the 

 ovii)ositor are exerted, the lower ones furnished with a strong lateral 

 tooth, the u|)|)er ones with two distinct basal teeth. 



This genus is North American and is represented by two species. 



Pseudoniopala, Morse, 1H96. Psyche, VII, 325 and 342, fig. 6, 6a, 6b, 



Opomala, S(ud., 1862. Journ. Host. Soc Nat. Hist., VII, 454. 



Ill pari, ()/'i)//i(f/ii, Thos., 1873. Syii. A( rid. N. Am., 62. 



Kkv to I'sKiinoi'OMAi.A, Morse. 



A.' Wings wanting 1. — Aplrra, Snid. 



A. 2 Wings pn-senl, usually small 2. — /ir(ir/iv/>/r/<i, .Si iid. 



I. I'SKIJDOI'OMAI.A AI'TKRA, Silld. 



Opmiidtd (iplcra, Scud., 1869. l'ro< . Am. iOnl. .So* . , II, 3015. 



()/uiiii(i/(i (iptera. Walk., 1870. (;at. I)(;rm. Salt., V, 52. 



Opdinala (tptrra, 'i'hos. , 1873. Syn. Acrid. N. Am., 63. 



Opiiiiui/ti (ip/t'ni, lirimer, 1877. ("an. ICnt., IX, 144. 



Opuiiiald iip/cni, I'.nmcr, 1883. 3d Kept. I'. S. VmV. (!(jm., 55. 



Hab. Pennsylvania. It is very doiibtdil wlielher lliis species is 

 distinct from P. hnichyptrra. Primer apparently recogiii/ed it in Ne 

 braska (in (Jan. iMit., IX, 144), but later he refers it to Pennsylvania 

 alone, whir h was Sr udder's original refereiK e. It lias never been re- 

 ported there sine e its first mention and it is lujl found in any (not even 

 Scudder's) collectif)n with which I am ac(|iiainted. It seems altfjgether 

 probable, therefore, that it is merely an apterous form (A //nn/iyp/rra. 

 I think it best, however, not t(j place it in the list of synf;nyms until 

 further r ollet tions are made in the place where it was found and its 

 identity is thorcjnghly established. 



2. PSKUOOI'O.MAI.A liKACUYI'TKKA, S( lid. I'ig. 4a, .\\>. 



OpoiiKt/d hrdchyplrra, Scud., 1862. Joiir. Post. So*. Nat. Hist., 

 VII, 454. 



Op^dfiiala hrddivptrrd , Thos. , 1871. I'rof . .A* arl. Nat.Sr i. Phila. ,151. 



()p(i)Hdld lii-drlixplcrd , Thos., 1872. Prelim. Kipt. \ . S. (Jcol. Siirv. 

 Mont., 429, 432, 446. 



Opumald />rnfhypler(t, Thos., 1873. .Syn. A( rid. N. Am., 63. 



()po)iiitId hrdrhvplcra, I5ruticr, 1877. (.'an. J'jit,, IX, 144. 



OpoDtdla hrdcliyplmt, limner, 1883. 3d Kept. U. S. Ent. Omu., 55. 



Opomala hrachyptera, Kernald, 1887. (.)rth. N. K., 35. 



