Proceedings of the Zoological Society. 299 



Genus 5. Anomala. 



" Anomala is common to the four quarters of the globe, and may 

 properly be divided into three if not four sub-genera, which task I 

 willingly leave to other entomologists. 



" In concluding these observations on Euchlora, I have only to add, 

 that it may excite some surprise that this genus extends far into the 

 Himalayan regions ; it may be explained however, satisfactorily, by 

 the influence of local causes. It is an ascertained fact that tropical 

 vegetation often extends into high latitudes, and why then may we not 

 expect to find insects which feed upon it, and are intended probably to 

 keep it within due bounds ? 



" From information given to me by my friend Professor Royle, I 

 state that the tropic-girt base of the Himalayas is characterized by 

 a vigorous and luxurious vegetation. 



" In the same regions there is also an uniformity or great equality 

 of temperature, well adapted for animal as well as vegetable fife. The 

 exuberance of the latter adds to the humidity of the atmosphere, 

 as well by the exhalation of the foliage as by preventing free evapora- 

 tion from the soil. In the boundless forest and interminable jungle 

 there will generally be found a great equality of temperature, brought 

 about in consequence of the umbrageous shelter impeding the absorp- 

 tion of heat by day, as it checks the free radiation of it at night. It is 

 then, owing to the presence of tropical vegetation, united with moisture, 

 that there arises considerable uniformity of temperature ; in a word, it is 

 from local causes that we are enabled to explain the reasons why we 

 meet with the representatives of tropical genera of plants and insects 

 extending into higher latitudes than at first might naturally be ex- 

 pected." 



Remarks on an East Indian Turnip-fly ( Haltica- Nigro-fusca J . 

 By J. T. Pearson, Assistant Surgeon. 



[From the Transactions of the Agricultural Society of India.] 



Desc. Cl. Insecta. — Auctorum. 

 Ord. Coleoptera. — Auct. 

 Sec. Tetramera. — Latreille. 

 Fam. Chrysomelidse. — Leach. 

 Gen. Haltica. — Auct. 

 Sp. H. Nigro-fusca. — Mihi. 

 Black Haltica, with brown legs and antennae. 



Colour, shining black, with a shade of blue. Form, oval. Head and 



2r 



