VORARBEITEN ZU EINER MONOGRAPHIE DER NOTACANTHEN. 
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. «Salduba diphy soldes, n. s., Mas. Nigra, ore flavo, thorace vittis 
quatuor subauratis, abdominis apice cinereo, pedibus albidis, femoribus 
posticis apices versus tibiisque posticis nigris, alis cinereis, venis stig¬ 
mateque nigris, halteribus testaceis. 
Male. Black. Mouth yellow; thorax with four stripes of slightly 
gilded tomentum ; tip of the abdomen with cinereous tomentum ; legs 
whitish, hind femora towards the tips and hind tibiae black ; wings 
greyish, veins and stigma, black; halteres testaceous. Length of the 
body 4 Va lines; of the wings 8 lines.» 
Die Art stammt von der Insel Áru. 
« Salduba hilaris , n. s. Mas et Foem. Nigra, gracilis, sublinearis, 
antennis compressis subarcuatis basi fulvo variis, flagello lineari, thorace 
vittis quatuor auratis, pedibus luteis, tarsis pallidioribus, tibiis posticis 
nigris, alis cinereis apice obscurioribus, halteribus pallidis. 
Closely allied to S. diphysoides, and apparently a local or sub¬ 
species. 
Male and Female. Black, slender, linear. Proboscis yellow, with a 
black tip. Antennae compressed, slightly curved, nearly twice the length 
of the breadth of the head; scape fusiform, partly tawny; flagellum 
linear, acuminated, very much longer than the scape. Four stripes on 
the thorax and border of the scutellum of gilded tomentum. Legs lu- 
teous ; tarsi white or pale yellow, with black tips ; coxae and hind tibiae 
black. Wings cinereous, darker towards the tips ; veins black ; halteres 
white or pale yellow. Male. Smaller than the female ; eyes more appro¬ 
ximate but not contiguous. Length of the body 3—4Va lines ; of the 
wings 5—8 lines.» 
Die Exemplare stammen aus Batjan. 
10. Salduba areolaris Walk. cf. 
1864. Salduba areolaris Walk., Proc. Linn. Soc. London, VII. 204. 9. 
1896. Salduba areolaris v. d. Wulp, Catal. Dipt. South Asia, 51. 
1907. Salduba areolaris Brunetti, Records of the Indian Museum, I. 94 et 96. 
Diese Art kenne ich auch nicht. Walker’s Beschreibung lautet: 
«Mas. Nigra, obscura, thorace vittis quatuor cinereis, pectore abdo¬ 
mineque nitentibus, hoc clavato, pedibus flavis, femoribus tibiisque posticis 
nigris, alis cinereis nebulosis, halteribus albidis. 
Male. Black, dull, most nearly allied to S. hilaris and to & diphy¬ 
soides. Antennæ longer than the breadth of the head. Thorax with four 
cinereous stripes ; the middle pair connected on the scutellum. Pectus 
and abdomen shining, the latter clavate. Legs yellow ; tarsi black towards 
