118 ADDENDA. PEXTATOMIDJE. 



above species. Easily distinguished by the quite different form 

 of the odoriferous apertures." 



"Length 4g-5 millim." 



"ffab. Madras." 



I have been unable to detect the above in any of the specimens 

 I have received. 



Genus MACROSCYTUS *. (Vol. I, p. 94 & Vol. IV, p. 427.) 

 MACROSCYTUS BADIUS. (Vol. I, p. 95.) 

 Add: Hab. South India ; Chikkaballapura (T. V. Campbell). 



MAOHOSCYTTTS EXPANSUS. (Vol. I, p. 97.) 



Add: Hab. South India; Chikkaballapura (T. V. Campbell). 



Genus GEOTOMUS. (Vol. I, p. 98 & Vol. IV, p. 427.) 



3687. Geotomus acrostictus, sp. u. 



Above and beneath shining-black ; membrane pale ochraceous 

 or dull greyish, with a large transverse black suffusion on apical 

 half, which sometimes as in type has the appearance of a 

 lunate fascia, in other specimens developing into a large apical 

 spot ; antennae dark castaneous, the apices of the joints more or 

 less pallescent, second joint longer than third, which is apically 

 incrassate, fourth joint also incrassate, its base attenuate, fifth 

 joint less but more regularly thickened, the lourth and fifth 

 longest and subequal in length ; head above anteriorly rounded 

 and hirsute at margin, laterally with obscure stnate markings, 

 the central lobe prominent and obscurely sparingly punctate; 

 pronotum with the anterior marginal area obscurely striate and 

 punctate, foveate on each side behind eyes, remaining area 

 sparingly and obscurely punctate ; scutellum beyond basal area 

 more or less obscurely transversely striate, but distinctly punctate; 

 corium thickly, finely punctate? legs black; tarsi ochraceous. 



Length 3 to 4 millim. 



Hab. South India; Chikkaballapura and Mysore State (T. F. 

 Campbell). 



Allied to G. pygmceus, Dall. (vol. i, p. 98), but a somewhat 

 broader species, with relative lengths of the antennae different. 

 Superficially this species mav be recognised by the transverse black 

 mark on the membrane. 



GEOTOMUS SUBROTUNDUS, Urtdd. Ann. Soc. Eni. Bely. liii, p. 264 

 (1909). 



This species received from Bandarawella, Ceylon, 1 have not 

 been able to identify with any of my Ceylunese specimens. It is 

 stated to be allied to O. pygmteus, Dall., from which it differs by a 



* Since these pages were in press, Bergroth 1ms described a species, M. longi- 

 rostris from Bombay, of which he states " The length of the rostrum would 

 place this species in the genus Gampsufes, Sign., but, the fades is so different 

 from that genus, that it is much better placed in Macroscytus, all other characters 

 of which it has." (J. Bomb. N. H. Soc. xxiv, p. 17U, 1915.) 



