50 MR. R. E. TURNER ON 



apical breadth, broadly rounded at the apex, the sides divergent 

 from the ba.se. 



Hab. Yallingup, S.W. Australia ; November and December. 

 S 2 in cop. Fremantle (type S )■ 



The nearest species to this is L. Iceviceps Sm., the male of 

 which has a similar tubercle at the base of the second ventral 

 segment, but in that species the apical segments are black in 

 both sexes and the hypopygium of the male and pygidium of the 

 female are different in shape. 



LOPHOCHEILUS L.EVICEPS Sm. 



Thynnus Iceuioeps Sm. Oat. Hym. B. M. vii. p. 44 (1859), § . 



S . Nigar, albopilosus ; alis hyalinis, venis nigris, segmento 

 ventrali secundo basi tuberculato, clypeo apice transverse albo- 

 lineato. 



$ . Nigra ; mandibulis pygidioque apice f usco-ferrugineis ; 

 segmento dorsali secundo irregulariter septem-carinato. 



Long., c? 20 mm.; $ 11 mm. 



c? . Clypeus closely, punctured, with a longitudinal carina at 

 the base, truncate rather narrowly a,t the apex ; interantennal 

 prominence broad, bilobed at the apex. Head and thorax closely 

 and rather finely punctured. Median segment very minutely 

 punctured with large sparse punctures intermixed, thinly clothed 

 with long white hairs. Abdomen finely and shallowly punctured, 

 the segments slightly constricted at the base ; seventh dorsal 

 segment broadly subtruncate at the apex, irregularly longitu- 

 dinally rugose-striate. First ventral segment with a strong 

 longitudinal carina, deeply separated from the second, which has 

 a strong tubercle at the base. Hypopygium strongly prominent 

 at the basal angles, thence triangular to the base of the strong 

 apical spine. Second abscissa of the radius nearly half as long- 

 again as the third ; first and second recurrent nervures received 

 at about the same distance from the second transverse cubital 

 nervure. 



5 . Head about half as broad again as long, very strongly 

 rounded at the posterior angles, smooth and shining, with a dis- 

 tinct frontal sulcus. Thorax shining ; a row of large punctures 

 along the anterior margin of the pronotum, which is nearly twice 

 as broad as long. Median segment coarsely punctured, nearly as 

 long as the scutellum. Abdomen shining, with a few scattered 

 punctures ; first dorsal segment with a deep transverse groove 

 before the raised apical margin ; second dorsal segment with 

 about seven transverse carinse, the two at the apex and the basal 

 one high and regular, those intermediate lower and broken. 

 Fifth ventral segment rugose. Pygidium more than twice as long 

 as broad, the sides parallel, rounded at the apex, longitudinally 

 striated, smooth at the apex. 



Hab. Yallingup, S.W. Australia; December. S $ in cop. 



This is nearest to L. mamillalus Turn., as noticed under that 



