396 DESCRII'TIO.NS OF NEW SPKCIE.S OF AVSTRALIAX COLEOPTERA, 



characters at once distinguish the species from B. armatus, D. vigilans, D. uhdoiii- 

 inalis and the blue variety of D. concalor; from the variety, it is also distinguished 

 by its red labruin, longer elytra, different inter-ocular space, non-strigose sides of 

 protliorax, and punctures of metasternum notably coareer and sjjarser towards the 

 sides. In D. coelestis the sides of the elytra are almost the same, but the punc- 

 tures of the head and prothorax are considerably larger and denser, and the head 

 has a circular inter-ocular fovea. The head and parts of the under surface have 

 a greenish gloss, the elj-tra a purplish one; the tip of the abdomen and middle of 

 the metasternum are obscurely diluted with red, but from most directions the red 

 is invisible, parts of the co.xae are also obscurely reddi.sh. The prothoracic punc- 

 tures, although small, are sharply defined, on the sides they are slightly elongated, 

 but not at all confluent. 



DiTROPIDUS StTBARJIATU.S, n . Sp . 



c?. — Bronzy, labrum, basal half of antennae, palpi, and under surface of front 

 femora and tibiae reddish. Head, under surface antl legs with white pubescence. 



Head with rather distant punctures; median line lightly impressed; clypeus 

 subtuberculate at each end. Eyes rather close together. Prothorax at base not 

 twice as wide as the median lengfh, sides strongly narrowed to apex ; with small 

 but sharply defined punctures in middle, becoming larger and crowded on sides. 

 Elytra not much longer than basal width, sides rather strongly narrowed pos- 

 teriorly; with rows of rather large punctures, interstices with dense but faint 

 punctui'es (almost shagreened) . Front legs slightly longer than hind ones. 

 Length, 2.75 mm. 



Hah. — Western Australia: Swan River (A. "Si. Lea). uni(|ue. 



This species has been placed amongst those having dark legs, as, although the 

 under surface of the front ones is reddish, their upper surface is blackish; the 

 elytra have a vag-ue greenish gloss. The distance between the eyes is hardly more 

 than the length of the basal joint of antennae; the rows of punctures on the 

 elytra, even the short subsutural ones, are set in shallow striae; as a result the 

 interstices are gently separately convex: on the sides, however, the striae are 

 much deeper, and the interstices are acutely costate; although the type is a male, 

 the third abdominal segment is distinct across the middle. The sides of the clypeus 

 denote an approach to some of the armed species, as they are slightly elevated and 

 shining, with the intervening space depressed : this character at once distinguishes 

 the species from D. cognatus, D. quadratipeiinis. D. indisti)tcti(.<i, D. conge)! it iis 

 and others, to which at first glance it seems close; in general appearance it is like 

 a small D. concolor, but the jaws and clypeus are very different . 



DiTROPIDUS LOBICOLLIS, U.Sp. 



(?. — Black, upper surface with a slight bronzy gloss, labrum and basal half of 

 antennae (upper surface of first joint infuscated) reddish. Head, under surface, 

 pygidium and legs with white pubescence. 



Head with rather small, dense, partially concealed punctures; median line 

 vague. Eyes as far apart as the length of two basal joints of antennae. Pro- 

 thorax at base almost twice as wide as the median length, sides strongly rounded, 

 with small and sharply defined but not crowded punctures in middle, becoming 

 larger and denser on sides. Ehitra short; with rows of not very large punctures, 

 becoming larger and set in deep striae on the sides; interstices with fnirly dense 



