BecorJs of Been. \\\\ 



Euryylussa nnilica, sp. u. 



(^ . — Looks exactly like Pac/njprosopis humeral is, but on 

 closer inspection seen to difi'er as follows : ncrvurcs paltr, 

 second s.m. quadrate, its upper apical angle about a rij^lit 

 angle; no yellow frontal niaik; yelloAV going hardly half- 

 way up cheeks; facial fovea shorter; mesothorax entirely 

 black ; thorax rather more shining ; sides of prothorax, witJi 

 tubercles, and anterior eoxte, yellow, but thorax otherwise 

 black beneath. The third antennal joint is a mere ring, as 

 in P. humeraVis. 



Hab. Sydney, New South Wales, one at flowers of Ango- 

 p/iora, Dec. I,'l910 ( JV. ]V. Frog(jatt, 115, in part). 



\\'lKit is the real relationship of l\l. mutica to P. humeralis ? 

 On the venation, they go in difterent genera, yet they are 

 so closely allied that I was at first convinced that they were 

 forms of one species. I do not yet consider it satisfactorily 

 demonstrated that E. mutica is not a " mutation " of the 

 Pachyprosupis, but in view of the various differences I 

 describe them as distinct. The male of K. calUupsella, which 

 Professor Froggatt took on the same day as E. mutica, is 

 very similar in coloration, and no doubt closely allied ; but 

 it is much larger, and has a much longer second subinargiual 

 cell, which receives both recurrent nervures. The genus 

 Pachyprosopis variously grades into Euryylossa and becomes 

 hard to define. It could be restricted to the species with 

 large heads, but this seems unsatisfactory. 



Euryglossa aurantifera, sp. n. 



? . — Length about 9i mm. 



Black, with bright chrome-yellow markings on head and 

 thorax ; head broad, inner orbits nearly parallel ; clyi)eus 

 (except a pair of small black marks), semicircular elypeal 

 area, and broad supraclypeal marks bright yellow, the latter 

 filling space between clypeus and eyes and extending broadly 

 upwards, ending near level of upper margin of antennal 

 sockets, the highest point nearly halfway between antennae 

 and eyes ; mandibles and the shining labrum wholly dark ; 

 front and vertex dull, the latter with black hair ; mesothorax 

 dull, with black hair, its anterior lateral corners with a large 

 yellow patch ; tubercles broadly yellow, but pleura wholly 

 black; seutellum, postscutellum, and axillse yellow, not 

 shining; area of metathorax dull, without any evident 

 sculpture ; teguke black. Wings clear, with pieeous nervures 

 and stigma; second s.m. long, reeeiving the recurrent 

 nervures a considerable distance from its base and apex ; 



