20 ENTOMOLOGICAL NEWS. [Jan., '05 



Width 5.90 mm. Described from one living larva and several alcoholic 

 specimens. Measurements taken from a large specimen, some larvae 

 being only 34 mm. long when fully grown ; this is not surprising, how- 

 ever, as the imagos also vary greatly in size. 



Have found the larva in the stems of Eriophylluni stcedifo- 

 lium and in the root of Helenium puberulum but most fre- 

 quently in the large yellow lupine. The larva bores longitu- 

 dinal passages just above ground or a little under, turning its 

 burrow at right angles and usually closing its opening with 

 excrement. I have taken from the same plant, Hepialus 

 larvse some about one-third and others full grown ; I should 

 judge therefore that the larval life is about two years. Have 

 found larvse in last stage from June to this date, December, 

 They are very active, moving backwards easily. They should 

 be put in separate vials or receptacles when collected other- 

 wise they will invariably bite off each other's thoracic legs, 

 and otherwise mutilate each other. H. sequoiolus is not rare 

 in the vicinity of San Francisco where I collected larvae of the 

 same ; it is also taken in Alameda and Mendicino counties. 



A New Thrips from the Philippine Islands. 



By William H. Ashmead, M. A., D. Sc. 

 Among some parasitic Hymenoptera sent me by Father 

 Robert E. Brown, of Manila, I found a single specimen of a 

 Thrips, and, since these insects are still unknown in the Philip- 

 pines, there being none recorded in Uzel's Monographic der 

 OrdungThysanoptera, I submit below a brief description of it. 



Genus IDOLOTHRIPS Haliday. 



Idolothrips tibialis n. sp. 



9. — Length 2.4 mm. Coal-black, smooth and shining, but with all 

 tibiae and tarsi, except the pulvilli, yellowish-white ; the basal four joints 

 of the antennee are black, the three following joints whitish towards the 

 base, but brownish at apex, the small terminal joint wholly brown. The 

 head is very nearly three times as long as wide, the sides parallel ; eyes 

 pale. The thorax laterally, in front of the insertion. The wings have a 

 row of four or five short, spine-like bristles. The abdomen is elongate, 

 pointed at apex, and has numerous long, bristly hairs above. 



Type.— No. 8,132, U. S. N. M. 



Manila, (Father Robert Brown). 



