﻿I07 



Male. Apparent slenderness of the antennal joints varying 

 much according to aspect and from shrinka,ge. Metathorax 

 Daler in some than other; in balsam specimens becoming mucii 

 paler with age. 



(PI. I, fig. 6 and 8; PI. II, fig. 3, 4, 5, 6, 11 and 12; PL III, 



^^S- 4-) ^ . 



Hab. Columbus, Ohio, and Alameda, California, or Lihnrma 

 hitulenta in abundance (Koebele). Everywhere abundant in 

 Queensland on Liburnia and other Dclphacids. and also in ¥V]\. 



Dciiiclciichus, gen. nov. 



Female. Head nearly circular, very wide, the anterior mar- 

 gin simply and widely rounded, with no defined anterior median 

 c.rea, and without evident tubercles in front. Between the open- 

 ing of the brood-chamber and the anterior margin there are 

 two distinct areas marked out by impressed lines, which run 

 backwards to the brood-chamber orifice as deep grooves on 

 either side of a smooth sHghtly raised tubercle. Opening of the 

 brood-chamber bisecting the head in surface view. 



This insect is nnich larger ihan Elenchus and seems to me evi- 

 dently allied to that genus, by the absence of a definite anterior 

 median area and the presence of those on the disc, between the 

 anterior margin of the head and the orifice of the brood - 

 chamber. Still it can hardly be generically identical. 



Dcinclcnchus aiistralciisis, sp. nov. 



*Female. Head brownish in front of and yellow behind the 

 brood-chamber orifice. The discal areas between the latter and 

 the apical margin somewhat fan-shaped, and themselves divided 

 by very fine grooves. Sometimes in apical view of the head two 

 round faint spots can be seen, but there is no definite median 

 area, nor tubercles. Length and breadth each about ^ mm. 



Male puparium dark brown with a pale ring at the base of 

 its protruded portion. 



(PI. H, fig. 7.) 



Hab. Cairns and Brisbane, Queensland; on a Fulgorid 

 {PlatybracJiys or allied genus). Koebele's No. 2254. 



OBS. At various places during the six months that Mr. Koe- 

 bele and myself were together in Australia, we found isolate! 

 individuals of leaf-hoppers, containing male puparia of Stylo- 



* For characters of male see .su])iiU"ineiitary note, p. 108. 



