IlEMIDIPTERA. 



101 



curvecl. robust, aiul about the length of head and prouotum 



together, remaining joints 

 more slender, second and 

 third subequal, fourth a 

 little shorter than third : 

 pronotum with a median 

 pale longitudinal line, and 

 a large rounded fovea on 

 posterior portion of disk ; 

 rostrum five - jointetl, first 

 two joints very robust and 

 somewhat fused together, 

 second minute and much 

 shorter than first, third 

 much the longest, fourth 

 small, slender and black, 

 fifth ochraceous, very slen- 

 der and hair-like ; sternum 

 greyishly pilose; eyes large, 

 semiglobular, and castaneous ; pronotum about the length of head, 

 but broader, truncate anteriorly, rounded posteriorly ; mesonotum 

 and metanotum hardly distinguishable, much longer than pro- 

 notum, and gradually and regularly widened posteriorly ; legs 

 ochraceous, anterior femora much thickened. 

 Length 7 to 8 millim. 

 Hah. Jhelam Valley (StoUc-l-a). 

 Bianchi states tliat this is a freshwater Himalayan species. 



Fig. 13G. — Chiinarrhomctra ortcntalis. 



Genus of douhtful position. 

 Genus HEMIDIPTERA. 

 Hemidiptera, ie'ow, JenaiscJi. Zeit. Nat. xxv, p. 13 (1890). 



Type, H. Jiacleli, Leon. 



Distribution. Ceylon. 



This genus was founded by Leon on a specimen brought by 

 Haeckel from Ceylon with a number of Halohates. It was pre- 

 served in Canada balsam, which made its examination very difficult. 

 Leon's interest was principally devoted to the mouth-parts, and 

 from his microscopical examination he concluded, in agreement 

 with Dr. Arnold Lang, that the insect was not a Halohates, but more 

 hke a Dipteron, though its mouth u as formed after the Hhynchotal 

 plan. He therefore considered it belonged to neither of the two 

 Orders mentioned, but to one intermediate between the Ehynchota 

 and Diptera. Dr. Bergroth (Wien. ent. Zeit. xi, p. 169, 1892) 

 has, to our view, successfully proved its E-hynchotal relationship, 

 and we entirely agree with his suggestion, looking at the figure, 

 that the hemelytra have probably been torn off. It is therefore 



