114 



HALTICINiE. 



In arranging the genera of Halticit^e from the countries under 

 review no attempt has been made to follow a phylogenetic order, 

 because the data at present available are not sufficient for the 

 discovery of the true inter-relationships of the genera. The latter 

 have been arranged in such a way that the collector in India can 

 identify his catch with the least possible difficulty. 



Key to the primary Sections. 



Antennas nine-segmented Section I, p. 114. 



Antennas ten-segmented Section II, p. 124. 



Antennas eleven-segmented Section III, p. 130. 



Section I (Antennas nine-segmented). 

 This section contains only one genus. 



Genus NONARTHRA, Baly. 



Nonarthra, Baly, Journ. of Entomology, i, 1862, p. 455. 

 Enneamera, Harold, Col. Heft, xiii, 1875, p. 185. 



Genotype, Nonarthra variabilis, Baly (Northern India); by 

 Baly's own designation. 



Body rounded-ovate, sometimes more elongate, narrowing 

 behind. Head broad but narrower than the width of the prothorax, 

 exserted. Antennas nine-segmented, situated nearer to the eyes 

 than to each other ; first segment long, second about half the 

 length of the first and shorter than the third ; from the fourth 



Fig. 40. — Nonarthra variabilis, Baly; bind tibia and tarsus. 



onwards all the segments except the last are dilated, sometimes 

 compressed, and triangularly produced on the inner side, this 

 character being more accentuated in some species than in others. 

 Iuterocular and interantennal spaces smooth and more or less flat 

 the latter sometimes with a longitudinal median impression, either 

 side of which is slightly elevated. Eyes strongly convex. Pro- 

 thorax broader than long, narrowed in front, longer in the median 

 longitudinal line than at the sides ; front margin almost straight, 

 hind margin forming an uniform arch the ends of which are 

 directed forwards ; sides almost straight and oblique, narrowly 



