116 



Stigmodera imperiai.is, n. sp. 

 PL ix., fig. 9. 



9 . Oblong-oval. Head basal part blue, face red mar- 

 gined blue and green, clypeus green-bronze, labrum reddish 

 with long upright tufts of hair, antennae green; pronotum,. 

 elytra, and greater part of underside red, the first slightly 

 violaceous, with narrow medial vitta and base blue, the second 

 with basal border, straight postmedian fascia (not reaching 

 sides or suture), and very narrow apical border black; the 

 last with margins of abdominal segments, margins and middle 

 of prosternum and metasternum metallic-blue, episterna red 

 with a violet tinge; scutellum purple, femora red with base 

 and apex blue, tibiae blue, tarsi blue above red beneath. 



Head concave and finely canaliculate at base; with coarse 

 scattered punctures on middle, more dense at sides. Pro- 

 thorax 8 x 15 mm., rather depressed, widest at base, sides- 

 rather straight behind, then arcuately and subsinuately 

 narrowed to apex, apex and base bisinuate, the former fringed 

 with hair at margin, about half the width of base, anterior 

 angles produced and subacute, base scarcely lobed at middle, 

 posterior angles produced and acute ; disc with smooth medial 

 depressed line for the greater part, closely and rather finely 

 punctate on middle, coarsely and closely on sides. Scutellum 

 subcordiform, concave, and smooth. Elytra oblong, widened 

 at shoulders and again behind the middle, there widest ; sides 

 nowhere serrated, apex subtruncate, or widely rounded with 

 a short tooth at each sutural extension ; with ten deep striae, 

 the first bifurcating behind the scutellum, forming a short 

 extra stria, the sixth and seventh originating behind the 

 humeral callus, all intervals convex and sparsely and rather 

 coarsely punctate. Underside coarsely punctate, the punc- 

 tures becoming finer on abdomen, the front margins of seg- 

 ments quite smooth, sternum and first segment of abdomen 

 with sparse long whitish hairs, otherwise almost glabrous. 

 Tarsi with wide teeth at their origin. Dim., 40 x 17 mm. 



(5 . 31-35 x 13-15 mm. Elytra without the pcstmedial 

 fascia or apical coloration. The whole elytra orange-red. Two 

 specimens in Mr. H. W. Brown's collection. 



Hah. — Western Australia: Cue (H. W. Brown). 



A magnificent insect, of which several specimens were 

 captured by that indefatigable collector, Mr. Brown, at Cue. 

 While standing near vitticollis, Macl., it is quite distinct from 

 that species in its more brilliant and varied colour, narrower 

 and shorter fascia, apex of elytron not bidentate, base of 

 thorax not excised, etc. Type, female, in the author's 

 collection. 



