HEMIPTERA-HOMOPTERA. 141 
Cicada invaria, Walk. List Hom. i. p. 151 (1850). 
Cicada dexithea, Walk. loc. cit. p. 158. 
Tympanoterpes dexithea, Stal, Ofv. Vet.-Ak. Forh. 1862, p. 485. 
Cicada fulvoviridis, Walk. List Hom., Suppl. p. 23 (1858)*; Stal, Hem. Fabr. ii. p. 7 (1869). 
Tympanoterpes grisea, Stal, Ann. Soc. Ent. Fr. 1861, p. 615. 
Cicada ovatipennis, Walk. Ins. Saund., Hom. p. 13 (1858) ?. 
Hab. Costa Rica, Port Limon, Atlantic slope (H. Pittier, in coll. Dist.).— 
CotomBia2; Amazons (Mus. Brit.), Villa Nova!; Antitues, Guadeloupe I. (Mus. Brit.). 
9. Proarna insignis. 
Proarna albida, var. insignis, Dist. antea, p. 12 (1881). 
To the localities given, add :—VENEzUELA (Mus. Brit.); EcuApor, Coca (Haensch) ; 
Amazons, Para. 
I had previously described this species as a variety of P. albida, Oliv., till then 
having only seen female specimens. I have since examined a male in the British 
Museum, from Brazil, and this decides their non-specific identity. Besides the 
differences already pointed out in the structure of the body and the markings of 
the tegmina, the opercula in P. insignis are laterally and posteriorly convex, in 
P. albida their posterior margins are obliquely straight and at right angles to 
the lateral margins. 
OLLANTA (to follow the genus Proarna). 
Ollanta, Distant, Ann. & Mag. Nat. Hist. (7) xv. p. 313 (1905). 
The species described as Selymbria modesta, Dist. (anted, p. 14), must also be 
included in this genus. 
Ollanta meaicana, 3. 
1. Ollanta mexicana, sp. n. 
Body above greenish-ochraceous ; head with anterior margin of front, two large spots at area of ocelli, and 
inner margin of eyes black ; pronotum with two central longitudinal lines, widened anteriorly and united 
BIOL. CENTR.-AMER., Rhynch. Homop., March 1905. #19 
