10 MISCELLANEOUS PAPERS. 



segment 9 large, bluntly conical; segment 10 small, retracted within 

 9. Close together on the middle of the dorsum of segment 9 stand 

 two short, very stout spines borne upon broader, black, chitinous 

 projections, the inner and outer edges of which are parallel; on each 

 side of the projections is a long, slender spine; on the latero-posterior 

 edge of segment 9 on each side is another chitinous, black projection 

 supporting a stout, black spine; a much longer, slender, curved spine 

 on each side of segment 9 about one-fourth of the distance from the 

 posterior margin; two long, slender spines projecting on each side 

 of segment 10 from underneath. Segment 9 cut out above over 

 about one-half of segment 10. 

 Described from six specimens. 



18. Genus EUTHRIPS Targioni-Tozzeti. 

 Key to the Species. 



1. Without prominent spines on fore-angles of pro thorax, longitudinal veins not 



regularly set with spines. 

 a. Head noticeably wider than long; general color white to light yellow or orange. 

 b. Last two segments of antennas rather long and slender, and together about 

 two-thirds as long as segment 6; wings shaded brown, with 

 transparent whitish areas near base and at tip; ring- vein 

 and longitudinal veins not conspicuous. 



Euthrips orchidii Moulton. 

 y. Last two segements of antennae not noticeably elongate and slender and 

 together about one-half as long as segment 6. 

 c. Ring-vein and at least part of fore-vein conspicuous. 



d. Body color translucent white to yellowish white; spines on costa 

 of fore-wings unusually long; ring vein and both longitudi- 

 nal veins conspicuous; segments 3 and 4 of antennae pedi- 

 cellate; wings shaded dilute yellow. 



Euthrips costalis new species. 



d^. Body color orange-yellow; spines on costa of fore-wings not 



unusually long; segements 3 and 4 of antennae not pedicellate. 



e. Wings shaded brown, fore-part of longitudinal vein alone 



conspicuous Euthrips longipennis Bagnall. 



e^. Wings not shaded brown; both longitudinal veins present, 

 with three or four scattered spines on each, one of which 

 stands at the abrupt ending of each vein. 



Euthrips citri Moulton. 



</. Ring vein and longitudinal veins not conspicuous; group of six 



spines on basal part of wing where anterior vein should be 



and nine on outer half where posterior vein should be; color 



of body and wings clear white, outer half of antennae dark 



brown Euthrips albus Moulton. 



a'. Head about as long as wide or a little wider (except Euthrips longirostrum, 

 which is noticeably wider than long); general color brown, 

 thorax sometimes orange-brown and yellow-brown. 

 6. Eyes pilose; no postocular spines; two long, prominent spines between 

 posterior ocelli; segments 3 and 4 of antennae not pedicel- 

 late; fore-wings with transparent area near base; hind longi- 

 tudinal vein of fore-wings with about sixteen spines. 



Euthrips pyri DanieL 



