BY GERALD F. HILL. 443 



Hagen as stating that C. cunvexus closely resembles C. imprubus Hagen fi'om 

 Tasmania , but from the description of the latter, as (juoted by Froggatt, it is 

 evidently quite distinct from the species now described by me as C. conviextcs 

 Walker. Unfortunately very little is known of the termite fauna of Tasmania 

 and until recently only three species have been recorded from that island. Of 

 these Stolotermes brunneicornis Hagen is known only from three alate images, 

 and Calotermes improbns Hagen only from a de-alate and damaged imago. A 

 recently described species, Po rote r men froggatti Holmgren, is unknown to me. 



Biuhigg : Of the nine colonies taken by Mr. W. Hill, eight were found in 

 the ''Mallee"-like roots, trunks or branches of living or dead Eucalypts, and 

 one in a verandah post, in association with a species of Leucutermes. In three 

 cases a few soldiers and nymphae of PoruternKs adamsoni (Froggatt) were 

 found in the colony. C. obscurus has also been taken in colonies of Porotermes 

 adamsoni in the same locality. Generally only a few soldiers and nymphae of 

 the former were present, but in one instance a king only was found, apparently 

 as consort of the gravid queen of the host species. Winged imagos were cap- 

 tured in January, June and July, at Seaford, and in March, at Beaconstield. 

 The Lakes Entrance specimens were found in a Eucalyptus stump, in associa- 

 tion with soldiers and workers of Eutermes fiimigatus Brauer, or a very closely 

 allied species. The Western Australian specimens, which I have provisionally 

 refeiTed to C. obscurus, were found in a rotten Banksia stump, with numerous 

 soldiers, workers and larvae of Leucotermes clarki Hill. 



In all cases the colonies were small, the largest comprising the soldiers and 

 300 larvae and nymphae. When alate forms were present they numbered less 

 than thirty individuals. 



Loc— Victoria: Seaford (W. F. Hill), Beaeonsfield (F. E. Wilson), Lakes 

 Entrance (F. E. Wilson); (?) S.W. Australia: Swan River (J. Clark). 



Calotkrmes (Gltptotermes) trilineatus Mjiib. 



Arkiv for Zoologi, Vol. 12, No. 15, 1920. 



Imago. (Figs. 30 and 31.) 



Colour: Dorsal surface castaneous, a.bdomen lighter than head and thorax; 

 under surface of thorax, legs, mouth-parts, antennae, first and middle of second 

 and third sternites brussels brown, remainder of sternites darker but rather 

 lighter than tergites; wing's iridescent, anterior veins and eight proximal branches 

 of cubitus dark brown, membrane between the latter suffused with brown. 



Head narrower than prothorax, rounded behind and on the sides to the 

 posterior margin of the eyes, the surface finely shagreened, clothed with numer- 

 ous minute and a few larger setae. Labrum dark, with scattered pale setae, 

 slightly swollen on the sides to the l)roadly truncate apex. Clypeus pale, an- 

 terior margin memljranous, three times wider than long, sides rounded to the 

 truncate apex, a gi'oup of three setae near each postero-lateral angle. Antennae 

 (Fig. 30) 14-jointed, arising from a raised tubercle within a depression in front 

 of the middle of the eye, 1st joint short and not greatly widened, curved on the 

 sides, 2nd about half as long and a little narrower, 3rd joint shortest and nar- 

 rowest or as long but narrower than 4th, or rarely longer than 4th, 5th longer 

 and wider than 4th, 6th-13th increasing in length, 14th about as long but narrower 

 than 13th, elongate-oval. Eyes very large and prominent, measuring vertically 

 0.329, horizontally 0.37U, finely faceted, lower margin 0.188 from lower margin 

 of head. Ocelli rather large, broadly oval, oblique, close to, and in line with, 

 the middle of the eve. 



