1917. j Some South Indian Ceddomyiids, 303 



%an in the other species of Coimbatore. It has been named by 

 Prof. Felt as Dyodiplosis (Pseudhormomyia) cornea, n. sp. 



Similar galls were also noted at Samalkota in an allied 

 grass (?). 



5. Panicum stagninum — an aquatic plant common at Samal - 

 kota and Coimbatore along canals, in shallow tanks and along 

 water channels in the wet lands. At Samalkota. in Octo- 

 ber 1916, silver-shoots were noted in profusion on this grass. 

 Large quantities of this grass were collected and taken to Coim- 

 batore for rearing, hut as the galls were heavily parasitised, 

 only small numbers of flies could be reared out. These flie 

 resembled Pachydiplosis ori/zae in almost all characters, and have 

 been forwarded to Professor Felt for exact identification. 1 As 

 sufficiently Inrge numbers of flies could not be reared out, actual 

 breeding experiments to find whether flies from P. stagnimm 

 would breed on paddy could not be undertaken and their iden- 

 tity could not, therefore, be solved in a direct manner. 



At Samalkota the eggs of this fly were found laid as in 

 paddy, either on the hairs of the rudimentary ligules. or on the 

 leaves or leaf-stalks in the neighbourhood of the ligular region. 

 The silver-shoots were also similarly very long. Though abun- 

 dant at Coimbatore, this grass has not shown any gall forma- 

 tions there. 



6. Paspalum scrobkulatum (wild variety)— known in Telu- 

 gu as Neeti-Arika— is semi-aquatic and is found on bunds in 

 Paddy fields and along canal banks. At Samalkota, this grass 

 exhibited long silver-shoots, but as the parasitica tion was severe 

 flies could not be reared out. At Coimbatore and in the Jiel- 

 lary District this grass did not exhibit galls. 



7. Andropogon annulatus.-This grass is very common 

 along roads in black soils in the Bellary District ; being peren- 

 *H it forms fairly large clumps. On close exani.nation a 

 good many of the clumps showed, in September 1916, ong ana 



lender galls among tin fresh shoots emerging from the root- 

 stock. Four specimens of the fli< * nerereajecUromto gans. 

 C " Tar formations were noted also at Samalkota on this grass. 



Strict, old but genuine galls were noted on . ide-shoote ^ 

 »P on the stems of this grass. In November 1916,^ numerous 

 examples of gall formations in this grass » '"J^Sh, 

 tQ re. It is Ssuallv found growing abundantly among ; jw** 

 Pear bushes and in open pasture ground. The &^j*££ 

 hgh up on the plant in the side-shoots or may -gtoSTS 

 from the root-stock. Flies have been reared. The fem.de nj 



, ' The flies have been found identical with Pachydiplosis oryzae from 

 paddy by Prof. Felt. Du odiplosis andropo- 



m . ? The flies have been named by Prof. Jolt as uyoa P 

 W*», n. sn. 



