224 MEMOIJRS OF THE QUEENSLAND MUSEUM. 



A feebly inetallie species, with eyes close together, those of the male 

 being separated slightly less than the length of the basal joint of antennae, in 

 the female about equal to that of the two basal joints; on many specimens the 

 bronzy gloss is hardly in evidence, on some the prothorax has a distinct coppery 

 gloss; the front legs are often entirely dark, and occasionally the labrum is 

 conspicuously red. The punctures at the apex of the prothorax are sometimes 

 almost as coarse as those on the sides; the metasternum is shining, and with 

 sparse, sharply defined punctures in the middle, but the sides appear shagreened, 

 owing to the dense and somcAvhat asperate punctures there. It is close to 

 D. qnadraiipennis, but is smaller, less metallic, with smaller punctures and inter- 

 ocular space not quite the same ; also about the size of D. odewahni, but with 

 coarser punctures, darker legs, and eyes much closer together. 



DITROPIDUS TROPICUS pp. nov. 



^ Black, basal half of antennae and sides of labrum reddish. Head, 

 under surface, and legs with sparse white pubescence. 



Head with rather dense partially concealed punctures, median line rather 

 distinct. Eyes rather close together. ProtJiorax not twice as wide as the median 

 length, sides strongly rounded ; with dense and sharply defined but not very 

 large punctures, becoming larger but not confluent on sides. Elytra subquadrate ; 

 wdth series of rather large punctures, on the sides set in deep striae, the interstices 

 between which are costiform posteriorly, the other interstices impuncate or almost 

 so. Front legs scarcely longer than hind ones. (Length ( (^9 ), 2-3 mm. 



9 Differs in being more robust, elytra less narrowed posteriorly, and 

 with smaller punctures, legs slightly shorter and thinner, and abdomen foveate. 



Hah. — North-west Australia (Blackburn's collection) ; Roebuck Bay 

 (H. H. D. Griffith, his No. 3304, and C. French). Queensland: Thursday 

 Island (G. E. Bryant) ; Cairns (E. Allen) ; Bowen (Aug. Simsou, his No. 88). — 

 Type, /. 10903 in South Australian Museum ; cotype, C/2319 in Queensland 

 Museum. 



A feebly metallic species, that appears to occur in abundance at Roebuck 

 Bay ; the upper surface usually has a vague bluish gloss, the prothorax, especially 

 in the females, occasionally has a faint coppery one. The distance between the 

 eyes of the male is slightly more than the length of the basal joint of antennae, 

 in the female it is about one half more; the female is usually larger than the 

 male. It is very close to D. solitus, but the eyes are not quite so close together, 

 sex for sex, the eyes of the male being about as far apart as those of the female 

 of that species, the prothoracic punctures are somewhat different, and those of 

 the metasternum are larger and more sharply defined on the sides; in general 

 appearance it is like Z>. striatopnnctatus but the sides of the prothorax are 

 nonstrigose; from D. lobicollis it differs in being smaller, eyes of male slightly 

 closer together, and prothorncic punctures more sharply defined in the middle; 



