104 t October, 



Steel-black. Labium and sides of labrum ferruginous. Ehinarium and nasus 

 dark brown, and there is a shade of the same colour on the prothorax. Thorax 

 bronzy blackish-brown, with an appearance as of a brown band encircling the sides. 



Abdomen slender, dilated at the base and apex ; the sides of segments 7 — 9 

 much dilated, and even forming, in the first half of the 8th, a small " leaf," finishing 

 abruptly in an obtuse angle. Colour bronzy-blackish, with yellowish markings as 

 follows : — a narrow basal ring on the 3rd segment ; a half ring occupying the basal 

 fourth of the 7tli above; the under-side varied with yellowish, somewhat ferruginous, 

 10th segment short, broader than long, narrowly carinate, its posterior edge somewhat 

 semicircular. 



Appendages blackish-brown or ferruginous. The superior twice the length of 

 the lOLh segment, distant, straight, sub-cylindrical, somewhat fusiform, slightly 

 turned outward and upward at the apex, which is acute ; the base somewhat dilated 

 above. Inferior one-thii-d shorter, almost quadrate,, the end truncated or somewhat 

 concave, each side produced into a short process, which, seen in profile, is up-turned 

 and almost hook-shaped ; in its middle, seen from above, there is a longitudinal carina. 



Legs slender, long, blackish ; posterior femora 12 mm. long; the anterior femora 

 slightly livid internally. 



? unknown. 



Hab. : Akele, "West Africa. 1 cJ in Mr. McLachlan's collection 

 (the colours somewliat altered) . 



Differs from Ph. trifasciata (of Madagascar) by its much larger 

 size, its expanse of wings equalling that of Macromia SojyJu'a (De 

 Selys), but the abdomen is much longer. Also separated from 

 trifasciata by the absence of the yellow transverse band on the nasus, 

 and by the thorax being without distinct pale bands. In addition, the 

 10th segment is not elevated into a point as in the African group of M. 

 Sophia, to which the anal appendages of the (^ of contumax show some 

 resemblance. 



Liege : May, 1879. 



CHAEACTEES OF NEW GENEEA AND DESCEIPTIONS OF NEW 

 SPECIES OF GEODEPHAGA FEOM THE HAWAIIAN ISLANDS. 



BY THE EEV. T. BLACKBURN, B.A. 



{Resumed from 2J- 158, vol. xv). 

 III. 

 I have retained for this paper the title borne by the previous 

 papers of the series, although I do not now intend to propose any new 

 generic names ; but, nevertheless, the title will be justified by allusions 

 to characters which must probably, sooner or later, form the basis of 

 genera, and I shall have to dislodge from its present resting-place a 

 species for which a new generic name will pretty certainly be required 

 eventually. The novelties described below were all taken during 

 February of this year, on the island Hawaii. 



