388 DESCRIPTIOXS OF XKW SPECIES OF AUSTRALIAN OOLEOPTERA, 



as it is nonfoveate I presvnuo the speeiiiieii must be a male. Two other males, 

 from Geraldton, appear also to belong to the species, one is slightly larger than 

 the Brisbane specimen, and its prothoracic blotch is broken up into two spots; 

 the other is still larger (2.5 uim.) and its prothorax is immaculate. 



DiTROPIIH'S AC'K'ri.ATUS Clip. 



Two specimgns from Victoria and South Australui (Mount Lofty) possibly 

 belong to this species, but differ from the description in being smaller (1.75 — 2 

 mm.), and with the sides of the prothorax narrowly reddish; the differences are 

 possibly sexual, as they are males, and the type was a female. They both have 

 the shoulders slightly infuscated, and one at first glance appears to have a large 

 scutellum, owing to the derm in its vicinity being deeply infuscated . 



DiTROPIDUS LEXTULUS Clip. 



Three cotypes of this species from Tasmania have the legs entirely dark, and 

 tliere are many similar specimens before me, but the legs, especially the front and 

 middle ones, are often obscurely reddisli; the upper surface frequently has a 

 greenisli gloss, rarely a purplish one. There is a i-ather wide and shallow median 

 line on the head, and the eyes are moderately widely separated on the male, more 

 so on the female. 



DiTROPIDUS SUBAENEUS Chp . 



There were two females of this species in the Blackburn collection, one bear- 

 ing a label "Ditropidiis subameiis Chp. Type" (no doubt it is a cotype), and I 

 took one at Hobart. All three have the hind legs black with a metallic gloss, liut 

 the middle and front leg's vary somewhat in colour. The head has a conspicuous 

 median line (not mentioned in the original description) and the eyes are widely 

 sejiarated, l)ut no doubt they are closer together in the male. 



DiTROPIDUS COSTATUS Chp. 



Two females from Dalby and one from Bowen possibly belong to this species 

 (recorded from "Australia"), but they are brightly metallic (the types weie de- 

 scribed as ''subnitidus") . The Bowen specimen has the apical half of the abdomen 

 brightly coppery, the others have most of it more or less red . They are close to 

 venustKs, but the prothorax has slightly smaller punctures, its sides could fairly 

 be called strigose, and its colour is but little different to that of the elytra, the 

 legs are also of a bright red. 



DiTROPIDUS I.A3IIXATUS Clip. 



On the male of this species the elypeus hn.s two subtriangular elevations, each 

 side of the elytra has a large opaque patch (in striking contrast to the adjacent 

 polished surface), and the front legs are stout and rather long. The female differs 

 from it in t)eing less dilated at the .iunction of the prothorax and elytra, the latter 

 nowhere opa(|ue, the tu))ercles on the dypeus uiudi smaller, the front legs shorter 

 and thinner, the antennae thinner, and the abdomen more convex, with a large 

 apical fovea. On the male the eyes are separated about the length of the two 

 basal joints of antennae, on the female about three. The specimens before me 

 are all from Queensland (Cape York. Cucii. Cairns. Bowen. and Clinrtors Towers). 



