282 lCIIN£UMONIl),'E. 



IvASiniiit, GOOO-7000 ft, v. 01 {Coh Ktusf) ; Eexgal : Pusa ;: 

 Central Proyixcks : Xao;piir (Pusa coll.) ; Bom hay : Surat, i.04 

 (Pusa coll.), Poona, viii. 86 (7i'. C. Wroughton, type). 



Type in the British Museum. 



It is closely allied 1o B. orlentalis. and tlie divergences are little 

 more than omissions in Cameron's description ; the abdomen is 

 more broadly flavoiis and the fourth segment in particular, the 

 hind tihije are basally black and centrally white, and tlie metanotal 

 areola is entire and very distinct. Prom D. tricinctvs^ Grav., it 

 differs in its stouter and more compact form, the greater conve.xity 

 of the abdomen, and the much broader segmental fascia). 



The species is pi-obably not unconinioii in liengal, where Mr- 

 Maxwell Lefroy has bred it (as he believes) fi'om the sawfly, 

 Athalia 2^^'occimn,M\\\^, on Stli December, 1906, and both sexes 

 from (more correctly, doubtless) Syy-phus ar/ypthis, Wied., at 

 Surat. 



Genus HOMOCIDUS, 3Iorl. 



Homocidus, Morley, Icbn. Jirit. iv, 1911, p. 87. 



HoDioponcs, Thomson, 0])usc. Ent. xiv, 189U, p. 1488 (y?ec Ilvm. 



Scand. 1878, p. 04). 

 Homotropiis, Porster, V^erh. pv. llheinl. 1808, p. 102 (pari.). 



Genotype, Bassus tarsatorivs, Panz. 



This genus is instantly distinguished from Bassus, as here 

 restricted, by the lack of transverse impressions on the basal 

 segments, its more slender conformation, and more nitidulous 

 tegument. Prom the other genera of the Bassides it will easily 

 be recognised by the small and immaculate metathoracic spiracles,, 

 simple scutellar fovea, punctate and more or less dull face, which 

 is not distinctly impressed longitudinally, the obsolete notauli, 

 not deeply excised scape, and by the hind tibia- having no sharply- 

 defined white central cincture. 



Rcnigc. Pal;eai-ctic and jVearctic Regions. 



At least thirty-hve Pahearctic species of this genus are now 

 known ; but only three from America have elsewhere been described. 

 Our present knowledge is limited to a single Asian species, wliich. 

 has been erroneously described as new by Cameron, and three 

 others that I have seen in collections. 



Table of iSj^ecies. 



1 (4) Areolet wanting : anus of $ not com- 



pressed. 



2 (3) Basal metanotal area) entire and some- 



what strong- cuicfu.i, Grav., p. 28o. 



3 (2) Metanotal area^ entirely wanting .... farfdfon'us, I'z., p. 28o. 



4 (1) Areolet pre.sent ; anus of $ strongly 



compressed. 



5 (6) Hind tibirc basally white ; petiolar 



carina^ strong ur/Kffiis, ( irav., p. 28-"). 



6 (5) Hind tibi;e mainly white ; ])etiolar 



cariiue obsolete dhniiliafus, Schr., p. 280.. 



