HEMIPTERA HETEROPTERA. 181 



3. Appasus Fieberi. 



Limnogeton Fieberi, Mayr, Verh. Z. B. G. V. Wien. ii. 16— Borberotrepbes 

 Hedenborgi, Stal, Of v. K. V. Ak. Forh. xi. 24 ; xiii. 66, pi. 1, f . 5 ; 

 Hem. Afr. iii. 180. 



4. Appasus scutellatus. 



Limnogeton scutellatuno, Mayr, Verh. Z. B. G. Wien. xiii. 361; xxi. 431. 



Chartum. 



Genus 4. SPH^ERODEMA. 



Sphsrodeina, Le Lap. Hem. 18. Serv. Hist. Hem. 436 — Diplonychus, 

 Burm. Handb. Ent. ii. 194. 



1. Sph^rodema annulata. 



Nepa annulata, Fabr. Syst. Rhyn. 196. Oliv. Enc. viii. 189 — Sphaeroderaa 

 roiundata, De Lap. Hem. 18, pi. 52, f. 1 — Belostoma marginata, Gray, 

 Griff. An. K. Ins. 248, pi. 93, f. 4 — Diplonychus annulatus, Burm. 

 Handb. Ent. ii. 194. Blanch. Hist. Nat. Ins. iii. 91. H.-Sch. Wanz. 

 Ins. viii. 25, pi. 257, f. 798 — Spbaerodema annulatum, Serv. Hist. 

 Hem. 436. 



a. Hindostan. Presented by J. C. Bowring, Esq. 



b, c. Hindustan. 



d. Bengal. 



e. North Bengal. From Lieut. Campbell's collection. 

 /. Silhet. From Mr. Argent's collection. 



g, h. Silhet. Presented by J. C. Bowring, Esq. • 



Genus 5. DIPLONYCHUS. 



Diplonycbus, De Lap. Hem. 18. Burm. Handb. Ent. ii. 194. Serv. Hist. 

 Hem. 436— Nervinops, L.-Duf. A. S. E. F. 4me Ser. ii. 398. 



1. Diplonychus urinator. 



Appasus urinator, L.-Duf. A. S. E. F. 4me Sir. ii. 393 — Appasus 

 unicolor, L.-Duf. A. S. E. F. 4me Sir. ii. 394 — Diplonycbus 

 urinator, Mayr, Verh. Z. B. V. Wien. xxi. 436. 



Egypt. 



2. Diplonychus molestus. 



Appasus molestus, L.-Duf. A. S. E. F. 4me Sir. ii. 395 —Nervinops 

 rusticus, L.-Duf. A. S. E. F. 4me Ser. ii. 399, partly — Diplonychus 

 molestus, Mayr, Verh. Z. B. V. Wien. xxi. 436. 



Hindostan. Malacca. 



3. Diplonychus eques. 



Appasus eques, L.-Duf. A. S. E. F. 4me Sir. ii. 394 — Diplonycbus 

 eques, Mayr, Verh. Z. B. V. Wien. xxi. 437. 



Australia. 



