360 



HalorJiynchus caccus, Woll. (PL xxxi., fig. 6.) Several specimens were 

 obtained. Although a widely distributed species, it seems remarkable that this 

 curious, little, apterous, blind species should occur on such a small island. 



COCCINELLIDAE. 



In addition to the species noted a single specimen was obtained of a minute 

 species probably belonging to Scymnus, and about the size of 5. vagans ; it 

 differs from that species in the eyes having coarser facets, metasternum with 

 smaller punctures, and prothorax obscurely reddish ; but as its sex is not evident, 

 and it appears to be partly abraded, it does not appear desirable to name it. 



Scymnus flavifrons, Blackb. A small form of this variable species ; the 

 elytra entirely dark, or with only the tips obscurely reddish. 



Rhisobius nitidus, Blackb. A single specimen was obtained on the island ; 

 it, and all the others before me, have the suture very narrowly blackish, a char- 

 acter not mentioned in the original description. 



Coccinella transversalis, Fab. 



CORYLOPHIDAE. 

 Scricoderus inconspicuus, Lea. 



EXPLANATION OF PLATE XXXI. 



Fig. \. Phycosccis algariim, Pasc. 



2. Pitniis australiae, Lea. 



3. Promts mcdiamis, Lea. 



4. Mandalottis murrayi, Lea. 



5. Mandalottis murrayi, Lea. 



6. Halorhynchus caeciis, Woll. 



