BY E. MEYRICK, B.A., P.E.S. 773 



SYNTOMIDIDAE. 



Ocelli present. Antennae about J, thick. Maxillary palpi 

 absent. Posterior tibiae with all spurs present. Frenum developed. 

 Forewings with 1 simple at base, 7, 8, 9, and 10 stalked. Hind- 

 wings with lc absent, 8 absent. 



The absence of vein 8 of the hindwings is the main character- 

 istic of the family. In all the species here described the form of 

 wing is practically identical, except that in Agaphthora the hind- 

 wings are relatively much smaller, and it is therefore not mentioned 

 specifically ; the forewings are elongate-triangular, costa posteriorly 

 arched, apex obtuse, hindmargin very oblique, somewhat rounded, 

 slightly sinuate beneath, inner margin short ; hindwings short, 

 small, rounded-triangular. In the specific descriptions a normal 

 type of marking is assumed, consisting of five spots in the fore- 

 wings, first beneath lower median towards base, second above 

 lower median before middle, third beneath lower median under 

 second, fourth below costa towards apex, fifth between fourth and 

 anal angle, evenly bisected by a black vein (3) ; and two in 

 hindwings, first towards base, second beyond middle, both 

 generally bisected by a vein. The palpi, legs, and cilia of wings 

 are always blackish, and therefore not specifically mentioned. 

 The collar is reckoned with the head. 



Most of the species are tropical. There are only four Austra- 

 lian genera, all also Indo-Malayan ; in all vein 4 of the hindwings 

 is absent. 



A Hindwings with vein 3 also absent. 



a. Hindwings with vein 6 absent 38. Agaphthora. 



b. ,, ,. present 41. Euchromia. 



B. Hindwings with vein 3 present. 



a. Yeins 3 and 5 of hindwings from a point. 39. Hydrusa. 



b. ,, ,, „ widely remote... 40. Choromeles. 



