from Puh-Penang or its Neighbourhood, 145 



almost to resolve themselves into one species. There is very 

 little, except modifications of colour, to separate O. flava, Oliv., 

 O. nigrijoes, Oliv., O. rubiginosa of European cabinets (which 

 has been taken abundantly by Mr. Wallace), and the species 

 before us ; and, moreover, two of the patterns have an extended 

 geographical range. O. nigripes, Oliv., from Bengal, is identical 

 with a species taken in the Philippines, and O. flava, Oliv., from 

 the East Indies, is found also in Celebes and China ; inasmuch, 

 however, as there is a constancy in these varieties of pattern, 

 and as Olivier's description consists of a few words only, I have 

 thought it well to describe more fully the Penang form. 

 In my own cabinet and that of Mr. Baly. 



Genus Aulacophora (Chev.). 



Elongata, ovata (versus apicem plerumque ampliata), in specierum 

 plurimis subtiliter punctata, nigra, vel iiigro-rufo vel flavo ornata : 

 genus passim et abundanter in regionibus orientalibus occurrens. 

 Caput verticale, vel pene verticale, productum ; palpi maxillares 

 articulo penultimo incrassato, rotundato, subcylindrico, interdum 

 versus apicem ampliato, ultimo brevi, minora, conicali. Thorax cdi^iiQ 

 latior, elytris angustior, transversus, lateribus plerumque sinuatis, et 

 disco apud medium transverse foveolato. Scutellum triangulare. 

 Elytra vix vel rarius parallela, latera subsinuata sunt, versus apicem 

 ampliata, plerumque leviter punctato-striata, nitida. Corpore subtus 

 mesosterni parapleurse scaleno-triangulares. Pedes satis graciles; 

 unguiculi undique bifidi. Antennae graciles, simplices. 



This genus was constructed by Chevrolat for the reception of 

 a very numerous group of Eastern Gallerucidse. It differs from 

 Diacantha, the neighbouring genus of African forms, by its 

 simple antennse ; from Rhaphidopala, and other forms near it, 

 that will require the erection of special genera, by. its more 

 robust body. 



A. simplicipennisj n. sp. 



A. elongato-ovata, nitida, nigra, elytris rufis : caput impunctatum, 

 supra antennarum basin, ad frontem anteriorem profunde et breviter 

 transverse foveolatum : thorax transversus, ad latera et antice 

 marginatus, latera subrotundata, apud medium fortiter transverse 

 foveolatus, sparsim punctatus : scutellum elongato-triangulare, 

 nitidum : elytra subparallela (apicem versus modice dilatata), sub- 

 tiliter punctata, rufa : corpus subtus nigrum : pedes nigri, tarsis 

 pallide rufis : antennce pallidse, testaceee. 



Long. corp. lin. 4 j lat. lin. 2J. 



An abundant species at Pulo-Penang. 

 In my own cabinet and that of Mr. Baly. 



Ann, §• Mag. N, Hist, Ser. 3. Vol, xv. 10 



