1920] Mann: Ant Guests 63 



discovery of any inquilines in the nest. One was found with 

 a Fijian species of Iridomyrmex, nesting in a Myrmecodia bulb 

 and two with Prenolepis bengalensis Forel, an East Indian ant 

 apparently well established in Fiji. 



I am, with much doubt, placing five of my species in the 

 genus Fustiger, though they are certainly exceedingly aberrant 

 forms, and for two of the species I have considered it advisable 

 to erect new genera. 



Fustiger vitiensis sp. no v. 



(Fig. 2, a; Fig. 3.) 



Male: Length 1.25-1.50 mm. 



Head about twice as broad as long, broadest in front, shallowly 

 impressed transversely between eyes, smooth in front and with shallow, 

 foveolate punctures behind. Antennas longer than head, the third joint 

 narrow basally, gradually enlarged for two-thirds its length and then 

 suddenly thickened so that the apical third is sub-campanulate ; basal 

 two-thirds densely punctate and much darker in color than apical third, 

 which is smooth and shining. Prothorax longer than broad and a little 

 more than half as broad in front as behind; sides convex. Sides of eltyra 

 feebly arcuate, posterior angles obliquely truncate, middle of border 

 moderately concave. Abdomen with basal pit deep but not broad, 

 lateral glandular swellings evenly rounded, only moderately excavated 

 beneath; margins strong. Femora narrow basally, moderately swollen 

 at apical two-thirds ; the middle pair with thick spines which are broad- 

 ened and subangulate in front of middle ; the spines two-thirds as long 

 as tibiae. 



Brownish red. Hairs yellow, coarse and straight, moderately 

 abundant on head, thorax, abdomen and antennae; short and sparse on 

 legs.. Fasiculac well developed. 



Host: Pheidole knowlesi var. extensiis Mann. 

 Described from a series taken at Nadarivatu, Viti, Levu, 

 Fiji. 



Fustiger raffrayi sp. no v. 



(Fig. 2, b.) 



Near Fustiger vitiensis from which it differs in the following 

 characters: 



The prothorax is proportionately longer and more than twice as 

 broad behind as in front. The femoral spines are slender and bisinuate 

 and not enlarged and angulate on inner border. The head is not strongly 

 punctate on the posterior half. The size (length 1 mm.) is slightly 

 smaller. 



Host: Pheidole knowlesi var. extensus Mann. 

 Described from several specimens taken at Vunisea, Kadavu, 

 Fiji. 



