238 MEMOIBS OF THE QUEENSLAND MUSEUM. 



thrice as wide as long, base and apex subequal, front angles slightly produced, 

 sides strongly and evenly rounded; with ten longitudinal elevations, of which 

 those near the sides are fairly distinct and continuous, the median ones less 

 distinct, and almost disappearing near base; punctures dense and small. Elytra 

 ])arallel-sided to near apex; with rows of fairly large punctures, becoming 

 smaller towards suture ; interstices with small punctures. Length, 3-3-25 mm. 



//a&.— Queensland : Mount Tambourine (C. J. Wild and A. M. Lea). — 

 Type, 1.11791 in South Australian ]\Iuseum ; cotype, C/207S in Queensland 

 ^luseum. 



The sides of the prothorax are dilated so that their greatest width is 

 slightly, but distinctly, more than that of the elytra, a character that at once 

 distinguishes the species from D. decemlineatus, and from D. fasciatiis (on some 

 specimens of the latter the elytral markings are very feeble) ; from D. latus, 

 which has somewhat similar prothoraeic sides, it is distinguished by the much 

 smaller punctures of the entire upper surface. On several specimens there is a 

 slight infuscation about the middle of the elytra. 



Family END0:\IYCHID.E. 

 IDIOPHYES BREVIS Blackb. 



The type and only specimen of this species known to Blackburn is now 

 in the British Museum, but numerous specimens before me appear to belong to 

 the species, which at first glance seems to be a minute Stenotarsus (except for its 

 shorter and entirely pale antenna; it resembles S. pisonice in miniature). In the 

 generic diagnosis Blackburn stated ' ' prosternum inter coxas sat angustum, postice 

 vix productum," but later "I cannot satisfy myself as to whether its prosternum 

 projects slightly or not at all clear of the front coxge. " Examining unset 

 specimens it is difficult to see the end of the intercoxal process clearly, but on 

 removing the prothorax from the hind body the intercoxal process appears 

 rather acute, produced beyond the coxa*, with a notch in the mesoternum for 

 its reception. Arrow states^' that it belongs to the genus Exysma, of which Csiki 

 in the Catalogue of EndomychidcB records species only from America ; as the 

 genus was first recorded from Central America by Gorham,^* and two of the 

 species figured^" are very different in appearance from the Australian ones, 

 I pi'efer to retain the name Idiophyes for the latter. 



J[al). — Queensland : Brisbane (many specimens from wattle blossoms in 

 July) ; Alulgrave River. New South Wales: Glenfield (many specimens from a 

 nest of termites, rV>/>^o/crwies sp.) ; Forest Reefs. South Australia: Adelaide 

 (one specimen from a nest of the same species of Coptotermcs) ; Kangaroo 

 Island. Tasmania : Kempton. 



13 Arrow, Trans. Ent. Soc. Lond., 1920, p. 3. 



1^ Gorham~, Biol. Cent. Amer., Col., vii, p. 145. 



1* L.c, pi. vii, figs. 14 and 15 {E. orbicularis and E. ? tenuicornis). 



