CLASSIFICATION OF Tllli ASCALAI'llllMi. 



255 



Pedes flavi, femoribus (ad apicein exceptis) tarsisque fusco-nigris. 

 Abdomen nigrum, supra linea mediana, lateribus, infra niargini- 

 busque posterioribus segmentorum, flavis. Alae subaequales ; hu- 

 meris, area subcostali, pterostigmateque, flavis ; cellulis arese post- 

 stigmaticalis triseriatis. Long. corp. 13-14'"; exp. alar, antic. 29- 

 35", postic. 24-29"'. 

 Probably distributed throughout New Holland. 



2. S. importuna, Walker. (Ascal. importunus, Walk. Cat. Brit. 

 Mus. Neurop. p. 427.) S. Jlavipedi valde aftinis, sed paullo minor ; 

 alis angustioribus, pallide fuliginoso-tinctis. 



Hab. Moreton Bay. 



Evidently very closely allied to S. Jlavipes, but apparently 

 distinct, in consequence of the narrow and tinted wings. I have 

 seen two individuals precisely similar. 



3. S. subtrahens, Walker. (Ascal. subtrahens, Walk. Cat. Brit. 

 Mus. Neurop. p. 430.) Antennae tenuiores, nigrae, ad basin flavae ; 

 clava flava, infra dimidio apicali nigro. Frons pallide flavus, in 

 medio nigricans, cano-villosus. Vertex nigro-villosus. Occiput tia- 

 vum, nigro-radiatum. Thorax supra murinus, utrinque niger; infra 

 vel pruinoso-albidus, vel utrinque linea flavida signatus. Pedes nigri j 

 posticis ad femorum apices, intermediis femoribus omnino, anticisque 

 (tarsis exceptis), flavis. Abdomen nigrum, supra vitta dorsali inter- 

 terrupta, aurantiaca, ornatum. Alae elongatae, subaequales ; humeris 

 flavidis ; pterostigmate in anticis pallide brunneo, nigro- venato, in 

 posticis nigro, vel nigro-fusco ; area subcostali vix brunneo-tincta; 

 cellulis areae poststigmaticalis irregulariter triseriatis ; in serie infe- 

 riore magnis, caeteris parvis. Long. corp. 14'" ; exp. alar, antic, 32'" ; 

 postic. 28"'. 



Hab. Australia. I have seen specimens from Rockhampton and from 

 South Australia. 



One example in my collection has the apical quarter of the 

 posterior wings faintly tinged with brownish. 



4. S. Wilson i, nov. sp. Caput, thorax, pedes alaeque fere ut in C. 

 flavipede (antennae mutilatae) ; venulae transversa? costales, et infra 

 radium, fusco-marginatae. Abdomen nigrum, maculis dorsalibus mar- 

 ginibus segmentorum (supra interruptis), infraque ad basin et ad 

 apicem, flavo-ornatum ; apex pilis brevibus nigris utrinque vestitus. 

 Long. corp. 14'"; exp. alar, antic. 32"', postic. 27'". 



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



The wings are rather narrower than injlavipes, and the fuscous 

 margining or clouding of the costal and radial nervules gives 

 them a different appearance. The dorsal margin of each abdo- 

 minal segment appears to have a tendency to expand. 



