138 Mr. T. D. A. Cockerell — Descriptions and 



41. Clypeua black, lateral face-marks very 



broad, deep chrome ; mesotkorax dull, 

 sparsely punctured, the punctures of 

 different sizes cyanura, Kirhy, £ • 



(This is cyanura, as determined in British Museum, but the abdomen 

 is black, whereas original description says it is " atrocserulescens," 

 as the specific name would suggest.) 



Face lemon-yellow, but yellow of scu- 

 tellum and tubercles deep chrome ; 

 mesothorax densely and minutely punc- 

 tured. (Chowder, 1893: Froggatt).. frederiei, Ckll., <j\ var. 



(This insect was placed as rotundiceps, but type rotundiceps is a $ 

 and has the abdomen minutely and closely punctured, but the 

 mesothorax with coarse large punctures. The Froggatt insect, by 

 the puncturation of mesothorax, cannot be the species ascribed to 

 cyanura. Further search discovered the female, also from 

 Chowder : this agrees essentially in face-marks with the " cyanura" 

 but the mesothorax is punctured as in $ . The postscutellum is 

 all black and the area of metathorax dull. Both sexes have the 

 prothorax black, except the bright yellow tubercles; no yellow 

 mark on pleura behind tubercles. In sculpture of thorax the 

 Chowder insect agrees with frederiei, and I am sure it is a variety 

 of that species.) 



42. Face entirely black 43. 



Face with light markings 44. 



43. Tubercles yellow, and also a contiguous 



large yellow patch on pleura; front 

 dull and densely punctured ; meso- 

 thorax quite densely punctured ; area 

 of metathorax not ridged (it is also 



not ridged in morosa) niyrifrons, Sm. 



Tubercles black, but a quadrate yellow 

 patch behind; front shining, with 

 well-separated punctures diversipuncta, Ckll. 



44. No lateial face-marks whatever, but a 



large light area on clypeus, and a 

 supraclypeal mark ; hi'ge species .... 45. 

 With lateral face-marks 46. 



45. Second abdominal segment finely and 



quite closely punctured ; light area on 

 clypeus very broad (the whole width 

 of clypeus) above, and ending abruptly 

 below a little before the cly] eal mar- 

 gin ; supraclypeal mark hat-shaped . . morosa, Sm. 

 Second abdominal segment shining and 

 strongly but sparsely punctured : 

 liijht aiea on clypeus a broad parallel- 

 sided baud ; supraclypeal mark ap- 

 proximately semicircular. (Sydney, 

 N.S.W. : Froggatt.) desponsa, Sm. 



46. Face deeply sulcate on each side 47. 



Face not sulcate; all medium-sized 



species, looking very much alike .... 48. 



47. Very large species, of build of alcyonea ; 



area of metathorax shining and im- 

 punctate ; lateral marks linear, not 



