212 AUSTRALIAN PSELAPHIDJE, 



Q. Antenuarum articulis 3-7 latitudine sua longioribus, 7 

 cseteris longiori, 8-9 quadratis, 10 majori, fere quadrato, 11 

 magno oblongo-ovato, ad apicem leviter incrassato, duobus pra?- 

 cedentibus simul sumptis longiori. Long. 1-50 mm. 



Swan River, W.A. (Mr. A. M. Lea). 



Ctenisophus vernalis (?), King. 



Trans. Ent. Soc. N.S.W. i. 1863, p. 40; 9, hesperi, King, I.e., 

 p. 40. 



I have no type of vemalis. Mr. King's description is very 

 short; it is possible that the true vemalis may be another insect 

 than the one I consider as being so and whose description follows. 



Head narrower than in the other species, with the sides nearly 

 parallel between the eyes, which are very large; fovea? nearly 

 transverse ; maxillary palpi rather elongate, resembling those of 

 Kreusleri, but shorter, joints 2 angulate, 3 a little longer than 

 broad, the external expansion which is very acute and long, 

 situated a little before the middle, the upper part of the joint 

 nearly cylindrical, the appendage very long ; the 4th large, 

 triangulai'ly transverse, the outside and inferior margins curved 

 and convex, the upper one curved but concave, with the internal 

 apical angle acute and sharp and having a very short appendage, 

 the external one much produced, with a long appendage: pro- 

 thorax as long as broad, narrowed in front, with the sides straight 

 and parallel behind, the lateral fovea 3 not stronger than the 

 median one and not at all sulciform; elytra rather elongate with 

 the shoulders well marked. 



g. Head narrower than in the Q, and the body altogether 

 more elongate and more parallel; club of the antenna? a trifle 

 longer than the seven joints preceding, joints 8, 9, 10 cylindrical, 

 not twice longer than broad and equal to each other, 11th not as 

 long as the two preceding ones put together, hardly broader, 

 nearly cylindrical and very obtuse at apex; 3rd ventral segment 

 hardly flattened in the middle. 



(j). Stouter, head shorter and more rounded; antenna? rather 

 stout, joints 3-6 very little longer than broad, 7 much longer, 8 



