p. VAN DER GOOT, NOTES OR ORIENTAL APHIDIDAE. I 1/ 



Biology. 



This small species was collected on March 30 19 17 in the 

 Botanical Gardens of Singapore, living there in rather small 

 numbers on the young shoots and tender foliage of an 

 undeterminated tree {Euryci sp. ??). The colonies seemed to 

 consist of apterous females only ; small black ants (Dolicho- 

 derus bituberculatus) were found visiting the aphids. 



Note. 



I take pleasure in naming this species after my much 

 esteemed former chief Dr. W. RoEPKE, director of the 

 experiment station at Salatiga (Java). 



The species, like 7>. dubiuni V. D. G. (M. S.) which is 

 known from Br. India, lacks the elongate body commonly 

 met with in 7 rie ho sip hum. 



OREGMA MUIRI n. sp. 



Apterous viviparous female. 

 Measurements. 



Colour. 



Body of a darkish violet colour; head, prothorax and 

 sometimes the median part of the dorsum of a paler shade. 

 Margins of body with short bundles of waxy secretion, the 

 two caudal ones being generally the longest. 



Eyes black. Antennae and legs pale greyish. Siphunculi 

 and Cauda dark violet. (The larvae and nymphae are pale 

 greenish or pale yellowish green, with meso- and metathorax 

 darker greenish). 



Morphological characters. 



Body ovate ; the dorsum with transverse rows of modera- 

 tely long hairs. Wax glands allways present (see below). 



