34 



Polycaon confertus Lee. — Bred from larvre found in the Live Oak and 

 Almond. The beetles of both species of Polycaon have been observed 

 to bore burrows into living trees. 



Psoa 4-si{/nafa Horn. — I have bred this species from the dry i)run- 

 ings of the Grape-vine. Have observed the larvte and pup?e in the 

 dead stubs on living vines. Beetles appear in March, flying about in 

 the vineyards during the heat of the day. 



Lyctus striatus Melsh. — Bred from the branches of Quercus agrifolia 

 and Q. duhiosa. 



CUPESID^. 



Cupes lobiceps Lee. — Observed in all stages of development in the 

 decaying stumps of the Live Oak. 



Cis dichrous Lee. — Bred from a species of fungus which grows upon 

 the Live Oak. 



CERAMBYCID^. 



Ergates spiculatus Lee. — Larvre obtained from the decaying roots of 

 coniferous trees. 



Prionns ccdifornicvs Mots. — The larvte of this species live in the de 

 caying and rotten stumps and roots of the Live Oak. They never 

 attack the living or sound wood. The beetles are plentiful at evening 

 about groves, during July and August. 



Phymatodes ohscurus Lee. — I have bred this beetle from branches of 

 the Live Oak. 



(Eme gracilis Lee. — Bred fi'om the dead wood of Quercus agrifolia at 

 Poway. 



ElapMdion imbelle Lee. — Larvae of this species i^lentifid in the dead 

 wood of the Live Oak. The beetles are common beneath bark in Au- 

 gust. 



Megohrium edivardsii Lee. — Two beetles taken from beneath the bark 

 of the Live Oak ; one was just about to escape from its burrow. 



Xylotrechus nauticus Mann. — Abundant about Live Oak groves dur- 

 ing the months of July and August. The larvfe and pupte have been 

 taken from the dead branches and trunk of the Oak. The beetle is 

 both diurnal and nocturnal in its habits, becoming active near the mid- 

 dle of the afternoon, continuing so until late in the evening. This in- 

 sect is of considerable economic interest, being one of the few wliich- 

 commits serious damage to the wood of the Eucalyptus globulus in 

 the United States. Several years ago it was stated by the tree-growers 

 that Eucalypti were free from the ravages of pests, and that the wood 

 was valuable for wagon-work, posts, etc., which greatly increased the 



