202 
CATALOGUE OF 
vill. 389. Tign. Hist. Nat. Ins. iv. 258.  Latr. Gen. iii. 150—Ploa 
minutissima, Steph. Cut. 2,354. Burm. Handb. Ent. ii. 189. Brull. 
Hist. Nat. Ins. ix. 256. Blanch. Hist. Nat. Ins. iii. 89. Serv. Hist. 
Hem. 449. H.~Sch. Wanz. Ins. ix. 45—Plea minutissima, Leach, 
Trans. Lin. Soc. xii. 14. Pieb. Eur. Hem.101. Dougl. and Scott , 
Hem. 591. 
a—e. England. From Mr. Stephens’ collection. 
J—i. England. 
Africa. 
2, PLEA PULLULA. 
Ploa pullula, Stal, Ofv. K. V. Ak, Forh, xii. 89—Plea pullula, Stal, Hem, 
Afr. iii. 192. 
Natal. 
Eastern Isles. 
3. PLEA SOBRINA. 
sobrina, Stal, Hug. Besa, 268. 
Manilla. 
4, PLEA FRONTALIS. 
frontalis, Fieb. Ent. Mon. 18. Mayr, Novara Hem, 194. 
Nicobar Isles. 
Div. 2. 
Helotrephes, Stal, Hug. Resa, 267. 
5. PLEA SEMIGLOBOSA. 
Helotrephes semiglobosus, Stal, Bug. Resa, 268. 
Wampoa, China. 
Genus 2. NOTONECTA. 
Notonecta, Linn. Syst. Nat. 2,712. Fabr. Syst. Rhyn. 102. Latr. Gen. 
iii. 150. Burm. Handb. Ent. ii. 190. Serv. Hist. Hem. 450, Fieb. 
Eur. Hem. 31. Dougl. and Scott, Hem. 585. 
1. NoTONECTA GLAUCA. 
, Stoll, Pun. 54, pl. 12, f.10. Geoffr. i. 476, pl. 9, f. 6— 
Nepa votonecta, Deg. Ins. iii. 382, pl. 1g, f. 16, 17—Notonecta glauca, 
Linn. Syst. Nat. i. 2,712; Faun. Suec. 903. Fabr. Ent. Syst. iv. 
57; Syst. Rhyn. 102. Panz. Faun. Germ. 3,20. Oliv. Ene. viii. 
380, pl. 374, f. 31. Tign. Hist. Nat. Ins. iv. 236, pl. 5, f.3. Latr. 
Hist. Nat. Ins. xii. 291, pl. 97, f.41; Gen. iii. 150. Z.-Duf. Rech. 
Hem. 88. Burm. Handb. Ent. ii. 190. Brull. Hist. Nat. Ins. ix. 
255. Blanch. Hist. Nat. Ins. iii. 88. Hem. pl. 1, f.2. Serv. Hist. 
Hem. 452. Flor, Rhyn. Liv. i. 772. Dougl. and Scott, Hem. 587— 
