96 MB. T, P. PASCOE ON THE LONGICOENTA OF AUSTRALIA. 



This genus scarcely differs from the former ; and, on the other 

 hand, it is not to be distinguished from some of the smaller aber- 

 rant species of PhoracantJia, except for the absence of the spine 

 on the third joint of the antennae, and the more cylindrical form 

 of their terminal joints. The type is Sisyrium triparfitum, Paso. 

 (Obriimi) (Journ. of Entom. ii. p. 238). 



Phalota oollaeis. 



P. fusca, subnitida, disperse pubescens, capita nigro ; prothorace luteo. 



Hab. South Australia {Mr. Odewahn). 



Dark brown, approaching to black, with a very scanty pubescence com- 

 posed of small whitish erect hairs j head black ; prothorax and breast 

 yellow; scutellum black, subscutiform, rounded behind; elytra de- 

 pressed, twice as broad as the prothorax at the base, thickly punctured, 

 the apex of each rounded ; body beneath (except the breast), legs, and 

 antennae glossy brown. Length 3 lines. 



A broader insect than Phalota tenella, and at once distinguished 

 by its black head. The characters of the genus in the above work 

 were drawn up from a female, but the figure given was from a 

 male. In the latter it will be seen that the fifth and succeeding 

 antennary joints are much longer than the third and fourth ; and 

 therefore the term subequal, applied to them, requires modification. 

 P. collaris is described from a female ; doubtless the male vnll be 

 found to have also longer antennse. 



Xtst(ena. 

 Caput pone oculos constrictum et elongatura ; fronts subverticali, tur- 

 gida; mawii^wZis parvis. Oculi remote divisi, parte superi ore supra 

 distantes. Antenncs remotse, lineares, setuliferae, articulo basali sub- 

 elongato, curvato, apicem versus sensim incrassato, tertio et quarto 

 brevioribus, cseteris paulo longioribus et subsequalibus, vel parum de- 

 crescentibus. Palpi modice elongati, articulo ultimo obconico. Pro- 

 thorax antice et postice constrictus, medio lateraliter nodosus. Elytra 

 elongata, depressa, parallela. Pedes breves ; femora modice incras- 

 sata ; tarsi graciles, articulo basali elongato ; coxa anticse elongatse, 

 contiguse ; acetabula antica valde extus angulata. Mesosternum de- 

 pressum. 



Allied to Phalota, especially in the remarkable character of the 

 head (longer and more constricted, however, behind the eyes), in 

 the different form of the prothorax, in the lengthened basal joint 

 of the tarsi, and in the largely angular anterior acetabula. With 

 regard to the latter character, I am afraid too much stress has 

 been laid on it. M. J. Thomson, in his ' Systema,' divides his 



