December, '10] PIERCE: weevil parasitism 457 



Tetrastichus hunteri dies, Cerambycobius cyaniceps and unknown external both die 

 — 1 example. 



Tetrastichus hunteri dies, 3 unknown external die — 1 example. 



Tetrastichus hunteri dies, 2 Catolaccus himteri and 4 unknown external, all die — 1 

 example. 



Predation upon Parasites 



As was remarked on a preceding page predation frequently compli- 

 cates parasitism and renders it of no avail. Of course many kinds 

 of predation are accidental but the following examples will illustrate 

 some phases which greatly resemble superparasitism because the attack 

 is by larvae : 



Unknown Coleopteron super. Bracon mellitor — 1 example. 

 Unknown Coleopteron super. Catolaccus hunteri — - 1 example. 

 Unknown Coleopteron super. Eurytoma tylodermatis — 1 example. 

 Catorama sp. super. Bracon mellitor — 1 example. 

 Catorama sp. super. Cerambycobius cushmani — 1 example. 

 Hydnocera pubescens super, unknown — 1 example. 

 Hydnocera pubescens super. Bracon mellitor — - 11 examples. 

 Hyndocera pubescens super. Catolaccus incertus — 2 examples. 

 Hydnocera pubescens super. Cerambycobius cyaniceps — 1 example. 

 Hydnocera pubescens super. Eurytoma tylodermatis — 1 example. 

 Catorama sp. super. Cerambycobius cushmani super. Bracon mellitor — 1 example. 

 Unknown predator super. 9 Cerambycobius cyaniceps super. Bracon mellitor — 1 

 •example. 



In the following examples the predation is by adults and is less 

 apparently similar to superparasitism although the results are identi- 

 cal: 



Unknown predator super. Catolaccus hunteri — 1 example. 



Unknown predator super. Catolaccus incertus — • 1 example. 



Ants super, unknown parasite — 1 example. 



Ants super. Eurytoma tylodermatis — 1 example. 



Mites super. Bracon mellitor — 1 example. 



Cathartus cassice super, unknown — 2 examples. 



Catharlus cassice super. Bracon melitor — 1 example. 



2 Cathartus cassice super. Catolaccus hunteri — 1 example. 



Solenopsis geminata super. Bracon mellitor — 1 example. 



Summary: As the large number of records given herewith makes 

 it difficult to compare the different phases described, the following 

 summary has been compiled: 



Simple ectoparasitism: normal — the vast majority of examples. 



Averted simple ectoparasitism — 1 example. 



Simple endoparasitism : normal — only common in certain sections. 



Multiple endoparasitism: normal — very common on weed stem 

 weevils. 



True hyperparasitism : not recorded. 



Non-fatal simple superparasitism involving two individuals — 8 

 ■examples. 



