I I 



Vol. XL 



LONDON, SEPTEMBER, 1908. 



No. 9. 



THREE NEW NORTH AMERICAN PHLOEOTHRIPID.^. 



BY J. DOUGLAS HOOD, OFFICE OF THE STATE ENTOMOLOGIST, URBANA, ILL. 



In a collection of Thysanoptera^ kindly sent me for determination by 

 Prof. H. xA.. Surface, Economic Zoologist of Pennsylvania, I find three new 

 species, described below. Type specimens are in the writer's collection, 

 and in the collection of the Pennsylvania State Department of Agriculture. 



Phyllothrips, gen. nov. 

 ((/)vAAoi', leaf; ^pt'/', thrips.) 



Head about i^ times as long as wide, subcylindrical, broadest 

 across eyes, narrowed posteriorly. Eyes large, finely faceted, bulging. 

 Vertex elevated, prolonged, overhanging insertion of antennae, and bear- 

 ing the anterior ocellus at its extremity. Mouth cone subacute, reaching 

 about four-fifths across prosternum. Prothorax about half as long as head. 

 Legs slender ; fore femora not enlarged ; fore tarsi unarmed in both 

 sexes. Abdomen slender. Male with a scale at base of tube. 



Type. — PJiyllothrips citricoj'nis, sp. nov. 



This genus is erected for the reception of P. citi'icornis^ sp. nov., and 

 Cryptothrips aspersus, Hinds. It is close to 

 Liothrips, LTzel, differing from it in the pro- 

 duced vertex, overhanging ocellus, bulging 

 eyes, and longer head. 



Phyllothrips citricornis, sp. nov. (Fig. 15.)* 

 Female. — Similar in general appearance to 

 P. aspersjis (Hinds), from which it may be dis- 

 tinguished as follows : 

 a. Antenna? rather stout ; segments 5, 6 and 7 

 slightly more than one-half as wide as 

 long ; segments i and 2 nearly con- 

 colorous with body ; segment 3 pale 

 yellow ; rest of antenna shading to dark brown at tip, excepting 

 bases of segments 4 and 5, which are yellowish. Prothoracic spines 

 small, inconspicuous; mid-laterals wanting . . P. aspersus (Hinds). 



Fig. 15.— Phyllothrips citricornis 



'In the fig"ures all membranous portions are stippled. 



