CLASSIFICATION OF THE ASCALAFHIDJS. 



257 



libus flavidis, ornatum. Vena costali pallide flava : pterostigma an- 

 gustatum, infuscatum, nigro-venatum j cellulis areae poststigmati- 

 calis triseriatis. Caeteris ut in S. sabulosa. Long. corp. 20"' ; exp. 

 alar, antic. 40"', postic. 36"'. 

 Hab. Champion Bay (Du Boulay). In my collection and in Brit. 

 Mus. 



The largest of the Australian species : the groove marking the 

 divisions of the eyes is only slightly indicated, in fact, is less 

 evident than in any other member of the group Schizopthalrni 

 with which I am acquainted. 



9. S. difformis, n. sp. Antennae nigra? ; dimidio inferiore clavae 

 flavo. Frons niger, griseo-villosus. Clypeus, labium, marginesque 

 oculorum flavi. Vertex niger, nigro-villosus. Thorax latus, niger, 

 subtus griseo-villosus. Pedes nigri, tibiis extus flavis. Abdomen 

 nigrum, gradatim attenuatum, infra ad basin flavo-notatum, margini- 

 bus posterioribus segmentorum, supra interruptis, apicem versus ob- 

 soletis, 2° infra late, flavo-marginatum. Alae valde inaequales ; pos- 

 ticae conspicue breviores, prope basin latiores, ad apicem suban- 

 gulatae ; humeris sordide flavis ; pterostigmate brunneo, nigro-venato j 

 cellulis areae poststigraaticalis paucis, magnis, biseriatis. Long. corp. 

 13"' ; exp. alar, antic. 26'", postic. 20"'. 

 Hab. South Australia (C. A. Wilson). In my collection. 

 A peculiarly formed species, the great inequality in the size of 

 the wings and the shape of the body giving it a facies different 

 from the allied forms of the same local group. I believe my 

 example to be a male. 



The distribution of the colours of the legs is a good prima 

 facie character whereby to separate the Australian species. 



Malayan Archipelago. 



10. S.(?) malayana, nov. sp. Antennae piceae, vel piceo-nigrae, ad 

 basin pallidiores ; clava rufo-picea, ad basin nigra. Frons intense 

 nigro-villosus. Thorax supra griseus, utrinque et antice niger; in- 

 fra fuscescens, cano pilosus, utrinque late sed indistincte flavo-bi- 

 strigatus. Pedes flavidi ; tibiis piceis ; tarsis nigris. Abdomen tenue, 

 supra brunneum, infra basin versus albo-pruinosum. Alae vitreae, an- 

 ticae posticis valde longiores : sat latae, paullo in medio dilatatae ; venis 

 venulisque nigris pterostigmate flavido, nigro-venato ; areae post- 

 stigmaticalis cellulis biseriatis, paucis, magnis. Long. corp. 18"'(?); 

 exp. alar, antic. 31-34"', postic. 26-28'". 



Hab. Celebes (Wallace). In the British Museum. 



The extreme apex of the abdomen is broken off in the two 

 specimens I have examined ; both appear to be males. In the 



