PHYTOPHAGA FROM THE BATH ISLANDS /|07 



Web. but apparently distinct ; it belongs to the section in which 

 the median lobe of tlie last abdominal segment of the male is 

 not silicate, agreeing in that respect with the two species named 

 above, but in .4. analis this segment (according to Baly) has a 

 central ridge and the elytra are differently coloured in the 

 typical form. The nearly black variety of .4. bicolor has always 

 some fulvous spots or bands on the elytra and is a larger in- 

 sect , the legs are also differently coloured ; I have moreover 

 now seen more than twenty specimens from the present locality 

 and also from Mentawei which show no variation of any im- 

 portance, in all the elytra are opaque, very minutely punctured 

 anteriorly (nearly obsoletely so towards the apex) and with an 

 extremely narrow fulvous apical margin which is sometimes 

 however obsolete, the labrum is fulvous as well as the antennae, 

 which extend below the middle , the sides of the thorax are 

 nearly straight and the sulcus is rather deep, in some specimens 

 the apex of the tibiae and the tarsi are fuscous, the female has 

 the last abdominal segment simple. From all other species with 

 black elytra, the opaque colour of the latter will help to distin- 

 guish the present insect. 



17. Aulacophora cornuta, Baly. — Cist, entom. II, p. 445. — 

 Jac, Notes Leyd. Mus. Al, p. 212. Hab. Sumatra also Assam. 



18. Aulacophora denticornis, Jac. — Ann. Mus. Civ. Genova, 

 XXXVII, 1896, p. 137. Hah. Mentawei Isld. 



19. Ozomena impressa, Fab. — Hah. Sumatra, Java. 



20. Solenia robusta, Jac. — Ann. Mus. Civ. Genova, XXXVI, 

 1896, p. 500. Hah. Sumatra. 



21. Sermyloides basalis, Jac. — Notes Leyd. Mus. VI, 1884, 

 p. 64. Hab. Sumatra. 



22. Metellus (Nacraea, Baly) fulvicollis, Jac. — Proceed. Zool. 

 Soc. Lond. 1881, p. 448. — Notes Leyd. Mus. VI. Hab. Java, 

 Sumatra. 



23. Niasia difformis, Jac. Ann. Mus. Civ. Genova, XXVII, 1889, 

 p. 285. pi. IV, fig. 9. Hab. Isl. of Nias. 



24. Wlimastra platteeuwi, Duviv. — Ann. Soc. Ent. Belg. Compte- 

 rendu, 1890, p. xxxiii. Hah. Sumatra. 



