388 Mr. T. D. A. Cockerell — Desci-iptions and 



ferruginous ; flagellum vritli greyish cross-bands (one to each 

 joint) above ; a narrovv black band across vertex, connecting 

 ocellij from whicli comes a narrow median black line, going 

 less than halfway down front, while at the sides the band 

 connects with the linear facial fovese, which are also black, 

 the whole making the form of a very broad three-pronged, 

 fork ; base of occiput black ; mesothorax largely orange, with 

 no markings except a pair of very narrow dark lines leaving 

 the anterior border and failing to reach the middle ; pleura 

 entirely yellow ; upper side (area) of metathorax black, with 

 a transverse yellow mark. Wings clear, stigma and ner- 

 vures very pale yellowish ; lower side of first s.m. practically 

 straight ; second s.m. fairly large, about as broad as high ; 

 first r. n. entering second s.m. near base or joining first t.-c. ; 

 upper side of second s.m. very little oblique. Legs yellow, 

 the tibiae with a more or less evident brown line behind, 

 hind tarsi brown behind. Abdomen with about equally 

 broad transverse bands of yellow and black; venter yellow, 

 without markings. 



(J . — Length a little over 3 mm. 



Six dark bands (instead of five) on abdomen, these dark 

 brown, evanescent at margins ; lateral prongs of fork-like 

 mark on head very short. 



Hab. Purnong, near Murray River, S. Australia {S. W. 

 Fulton), Nine specimens (Nat. Mus. Vict. 140, 234, 218, 

 139). 



The type is a female. Apparently allied to EurygJossina 

 sidphurella, but differing in the markings and venation. The 

 facial fovese bend and extend toward the ocelli above as in 

 sulphurella. The b. n. does not seem to go to the t.-m., but 

 joins the discoidal nervure so as to make an angle on the 

 basad side. 



Some species of Euryglossa having the same type of colora- 

 tion as -E'./zwrz/erc are much larger. E. flavopicta, Smith, 

 has the yellow head, with black line enclosing the ocelli, but 

 there is more dark colour on the thorax and abdomen, the 

 general effect being very different. E. euxantha, Perk., also 

 has the peculiar cephalic colour and markings, but the 

 prevailing colour of the mesothorax is black. 



Euryglossa ridens, sp. n. 



$ . — Length slightly over 4^ mm. 



Broad, the head very broad ; head dullish black, minutely 

 tessellate, the broad front with a delicate median groove and 

 a very few scattered punctures ; antennae inserted below 



