AQUATIC RHYNCHOTA FROM THE 

 SOUTHERN SHAN STATES. 



By C. A. Paiva, Assistant, Zooloyical Survey of India. 



The water-bugs collected by Drs. N. Amiandale and F. H. Gravely 

 in the Southern Shan States include many novelties and are of great 

 interest on account of the unexplored state of the region in which the 

 collection was made. 



Although the families Hebridae, Pelogonidae and Naucoridae are 

 unrepresented and only one .species of Belostomatidae and two of 

 Nepidae have been obtained, the remaining families are fairly repre- 

 sented. Of the thirty-three species listed below seven belong to the genus 

 Gerris (Hydrometridae), three to the genus Micronecta Corixidae), 

 two each to the genera Microvelia (Hydrometridae), Enithares, Anisops, 

 Plea (Notonectidae) and Corixa (Corixidae), and one each to Mesovelia, 

 Velia, Perittopus, Ptilomera, Onychotrechus, Ventidius, Mefrocoris, 

 Xahoandelus, Nacebus (Hydrometridae), Ranatra, Cercotmetus (Nepidae), 

 Sphaerodema (Belostomatidae) and Nychia (Notonectidae). 



This is probably by no means a complete list of the Aquatic Rhyn- 

 chota of the Southern Shan States, as further research may discover 

 many more known as well as new forms. 



From the Inle Lake itself one species of Microvelia, five of Gerris, 

 one of Naboandelus, one of Nacebus, one of Ranatra, one of Sphaero- 

 deyna, one of Enithares, one of Nychia, two of Plea and one of Micro- 

 necta were obtained. 



Amongst the most striking forms may be mentioned the beautiful 

 Velia Y-alba and a new species of Nychia, a genus which is very scarce 

 in the Oriental E-egion. The species of Plea too are very interesting^ 



In order to render this enumeration as convenient as possible for 

 reference, I have followed the arrangement adojJted by Mr. Distant 

 in his volumes of the Fauna of British India, Rhynchota. 



Fam. Hydrometridae. 



Menovelia ■mulsanti, Buch. White. 

 Velia Y-ulba, sp. nov. 

 M krovelia diliita, Dist. 

 Microvelia burmanica, sp. no\'. 

 Perittopu.s hreddini. Kirk. 

 Gerris anadi/omene. Kirk. 

 Gerris nepalensis, Dist. 

 Gerris fossarum (Fabr.) 

 Gerris nitida (Mayr.). 

 Gerris tristan. Kirk. 

 Gerris pabtdiun, Fabr. 

 Gerris spiiiolae, Leth. and Sev. 

 Ptilomera laticaudata (Hardw.) 

 Onychotrechus lyra, sj). nov. 

 Vpvtidius distanti, .sp. nov. 

 Metrocoriy uigrofosciatus, Dist. 

 Naboandelus siijaatus, Dist. 

 Nacebus dux, Dist. 



Fam. Nepidae. 



Ranatra varipes, Stal. 

 Cercotmetus pilipes (Dall.) 



Fam. BEbO.STOMATIDAE. 



Sphaerodema rusticum (Fabr.) 

 Fam. Notonectidae. 



Enithares templetoni (Kirby). 



Enithares intha, sp. nov. 



Anisops niveus, Fabr. 



Anisops sardea, Herr.-Schatf. 



Nychia infuscata, sp. nov. 



Plea quinquenotata, sp. nov. 



Plea areolata, sp. nov. 

 Fam. Corixidae. 



Corixa unicolor, sp. \u>v. 



Corixa sepfemlineata, sp. nov. 



M irronecta sut)stri(it<t, sp. nov. 



Micronecta soror, sp. nov. 

 Micronecta Julva, sj). nov. 



