26 Records of the Indian Museum. [Voi,. XIII, 



r cniientn, Selys Darjiling to Assam. 



group fe-] fc'iiesti-e/ln spiiriir, Se\ys ivhasia Hills, Burma. 

 iiesfrella ) ,, quadriviacu- 



V lata, Selys Himalayas to Burma. 



• C f, imacii/afa, Se\ys Assam. 



^ "^ ; , ■< iDiiiiiaciilata, Selvs Himalaya, Dariilino- to Assam. 



»iaculafa ) '■ ■. • c i \ 



{^igntpemits, belys Assam. 



firiciea, Selys Burma. 



r Sbisignaia, Selys Deccan. 



^ /, > I perforata (Perch.) Burma, Siaui, Malay Pen., Hainan. 



Ibiforata, Selys Burma, Siam, Malay Peninsula. 



\whiteheadi, Kirby Assam, Tonkin, Hainan. 



Microincriis India, Ceylon, Indo-China, Malaya, 



Philippine Is., Celebes. 

 li)ieatus {^uvm.) India, Ceylon, .\ssam, Eiurma, 



Malaya. " 

 fiiialis, Selys Ceylon. 



Libellago Tropical Africa, Burma to Philip- 



pine Is. 

 asiafica, Selys Burma, Tonkin, Philippine Is. 



The accompanying diagram will serve to show at a glance the 

 distribution of Indian genera so far as it is known to me. Genera 

 occurring in neighbouring subregions which do not extend into the 

 limits of India are named in brackets. Dotted lines between dis- 

 tricts are intended to show that the faunistic relations of such 

 districts are very close. I should add that the diagram was 

 suggested to me by those in Mr. Beddard's book on Zoogeography. 



Genus Echo, Selys. 

 I. Echo margarita, Selys. 



Echo margarita, Kirby, Cat. Odonata, p. loi (1890). 



,, ,, Laidlavv in Fascic. Malayenses (Zoology), pt. I, p. 192 



(1903)- 



I & . Cherrapunji, Assam. {H%-), x-14 (S. W. Kemp). 



Type locality of the species. 



When I defined the genus Climacohasis for a male specimen 

 of the species which I then called C. lugens, I had not seen a male 

 example of this species, or indeed of any species of the genus Echo. 

 The present example differs from the female in having an elongate 

 pterostigma, exactly like that of my Climacobasis. The only 

 character then separating Climacohasis from Echo falls to the 

 ground and Climacobasis must be regarded as a synonym of Echo. 



The following list of the species of the genus may be useful ; — 



Echo margarita, Selys. 



Echo margarita, Kirby, Cat. Odonata, p. loi (1890). Loc. Assam. 

 Race tripartita, Kirby, Cat. Odonata, p. loi (1890). Khasia Hills. 



Echo uniformis, Selys. 



Echo? uniformis, Kirby, Cat. Odonata, p. loi (1890). Sumatra. 

 Echo uniformis, Kruger, Stettin Entomol. Zeit,, 1898, p. 72. 

 Echo tricolor? Kruger, loc. ctt., p. 72. 



Echo incarnata, Karsch. S. China. 



Echo incarnata, Karsch, Berlin. Ent. Zeitschr., XXXVI, p. 455 (1891). 

 id., Entomol. Nachr,, XX, p. 84. 



