100 Mr. Maleolm Burr’s Preliminary Revision of the 
tuberculis nullis instructis: segmentum ultimum dorsale ¢ angus- 
tatum, declive; ? etiam angustius; pygidium ¢ haud prominens ; 
forcipis bracchia gracilia elongata: ¢ basi remota vel subcontigua, 
recta, vel sinuata ; a latere visa recta vel valde sinuata, dentata ; 9 
recta, simplicia, subcontigua, inermia, gracillima. 
Type of the genus.— Opisthocosinia centwrio, Dohrn, Stett. 
ent. Zeit., vol. xxvi, p. 79. (1865.) (Borneo.) 
This genus formerly included a large number of very 
different species, so that it is necessary to subdivide it to 
a considerable extent, and to confine it to those species 
which resemble the type, O. centwrio, in the extremely 
slender form and slender antenne, with regularly length- 
ening segments, and in the narrow elongate pronotum. 
In its restricted sense, this genus now includes the 
following species :— 
TABLE OF SPECIES. 
1. Elytra et alee rufo-maculatee. 
2, Forceps valde flexuosus et dentatus ; 
statura majore ; species borneensis . 1. centurio, Dorhn. 
2.2. Forceps subrectus, inermis ; statura 
gracili; species africana . . . 2. formosa, Burr. 
1.1. Elytra unicoloria vel vittata. 
2. Elytra unicoloria nigra. 
3. Forceps ¢ valde flexuosus ac dentatus 3. cervipyga, Kirby. 
3.3. Forceps ¢ contiguus, rectus, apice 
ipso arcuatus . . 4. erroris, Burr. 
2.2. Elytra testacea vel ee aha. 
3. Elytra testacea, fuscovittata ; statura 
parva (12.5 mm)... . .. 5. ceylonica, Dohrn. 
3.3. Elytra rufa, anguste nigrovittata ; 
statura majore(15 mm.) . . . 6. armata, Haan, 
Genus 2.—LIPODES,* nov. gen. 
Statura robusta ; abdomen sat depressum, medio valde dilatatum, 
apicem versus attenuatum ; caput per suturas profundas in tres 
partes divisum ; pyg Leena persicuum, profunde fissum; forcipis 
bracchia sensim arcuata, inermia. 
The erection of this new genus is necessary for the 
* Gr. Aurddns = fat, 
