32 



semifumatum, and probably that form should be regarded as one of the many 

 varieties of the species. Those before me vary from having the abdomen, 

 except the tips, and head black or dull brown, prothorax almost as dark as the 

 head or much paler, and elytra entirely pale to having a more or less large portion 

 of the base infuscated. 



Lathrobium cribrum, Fvl. 



A specimen, from Melbourne, agrees well with the description of this species; 

 another, from Tasmania, agrees also with the description, but differs from the 

 Melbourne specimen in being more robust, and the elytra larger, with slightly 

 sparser punctures. 



var. rufivcntre, Fvl. Specimens of this variety are before me from Mel- 

 bourne and Sydney. 



Lathrobium micros, Fvl. 



Two specimens, from Stewart River, agree with the description of this 

 species, except that they are somewhat smaller, 3.75-4 mm. 



Lathrobium limbatum, Fvl. 



A specimen, from Whitton (New South Wales), is probably an immature 

 one of this species ; it differs from the description in being slightly smaller 

 (3.5 mm.), the head only slightly infuscated (it is, however, distinctly darker 

 than the prothorax) and sixth segment of abdomen scarcely infuscated at the 

 base. The punctures of its prothorax and elytra are somewhat unusual, but 

 exactly as in the description. 



Lathrobium exiguum, Blackb. 



A specimen of this species, in Mr. Elston's collection, has the prothorax 

 conspicuously reddish, in strong contrast wath the head ; it was taken, in moss, 

 in company with normally coloured ones. 



Lathrobium adelaidae, Blackb., 1886. 



Dolicaon spcnceri, Blackb., 1896. 



I have compared the type of D. spencer i (belonging to the National Museum) 

 with a cotype and other specimens of L. adelaidae, and find them identical. The 

 latter was referred with some slight doubts to Lathrobium, the former, without 

 comment, to Dolicaon. It is close to several species referred by Fauvel to 

 Lathrohium. 



Lathrobium orthodoxum, n. sp. Figs. 17 and 18. 



6 . Shining black; basal joint of antennae, palpi, and legs (knees slightly 

 infuscated) flavous, rest of antennae and mandibles somewhat darker. With 

 rather short, black, erect setae, becoming longer about tip of abdomen, elytra and 

 abdomen, in addition, with sparse ashen pubescence. 



Head subquadrate (except for rounding off' of angles) behind antennae; 

 with fairly numerous and sharply defined, but not large punctures, sparser 

 between eyes and denser on hind angles than elsewhere. Eyes rather small 

 (less than the length of basal joint of antennae). Mandibles stout. Antennae 

 rather long, first joint as long as second and third combined, third slightly longer 

 than second and distinctly longer than fourth, the others to tenth smaller and 

 more or less globular, eleventh about as long as second. Prothorax longer than 

 wide, apex almost the width of head, sides slightly decreasing, with a very feeble 

 incurvature to base, punctures slightly larger and denser than on head, but 

 leaving a shining median line, a few minute ones scattered about. Elytra 

 parallel-sided, distinctly wider and about one-half longer than prothorax; with 

 small subrugose punctures. Abdomen with penultimate and ante-penultimate 



