E. MJÖBERG: on some new, AUSTRALIAN GRYLLIDS AND FORFICULIDS. 3 I 



Tridactylus australiens n. sp. 



Body elongated, head dark yellow; on the inside of the 

 eyes a yellow ;nark. Prothorax much broader than the hcad,^ 

 the margins yellow; antennae short and thick, the first seven 

 joints of the same length, the 8:the a little longer, the 9:th 

 still longer, the last joint the longest, all joints with short 

 and thickly set hairs. Legs light yellow, the two hind pairs 

 brownspotted; the hind tibiae with two small obtuse teeth 

 over the lamellœ; the inferior spurs twice as long as the 

 lamellae, the upper spurs more or less hyalin, straight. Meta- 

 tarsus longer than the upper spurs but shorter than the in- 

 ferior, densely clothed with short hairs. Elytra more or less 

 reduced, with a lighter transversal band, dark brown, alœ well 

 developed, the front board brown with small white spots. 

 Cerci with long hairs. 



Long. 5 mm. — 



Of this species I have collected 8 specimens in West- 

 Kimberley near water. 



Fam. Gryllidae. 



Neniobiiis australianus n. sp. 



Body of moderate size, dark. Head and prothorax with 

 long, black, erect hairs, front brilliant black, a halfmoon- 

 shaped line over the root of the antennae yellow, hind head 

 with four lighter median stripes. Prothorax rounded on the 

 sides, dark, with a distinct middle line. F21ytra strongly reduced, 

 covering only half the hind body; between the parallel, 

 longitudinal nerves some transversal ones. Legs dark, the 

 two first pairs with yellow rings; cerci short, much shorter 

 than the hind tibiae; the ovipositor long, of the same length 

 as the hind tibiae. 



Long. $ 8 mm. 



Allied to N. fasciatus De Geer, but apparently distinct. 



