120 Psyche [August 



Frankliniella minuta Moult on. 



Distribution: California (Moulton, Crawford); Brownsville, 

 Texas; Topo Chico (near Monterey), Mexico; Ancon, Canal Zone, 

 Panama. 



A common flower — frequenting species of the southwest, known 

 previously only from California. 



Heliothrips hsemorrhoidalis Bouche. 



Distribution : Europe ; Asia ; Australia ; North America; Hawaiian 

 Islands; St. Vincent and Barbados Islands (Franklin); Ancon, 

 Canal Zone, Panama. 



A cosmopolitan greenhouse pest, indigenous to tropical and 

 subtropical America. One specimen was taken at Ancon, in 

 sweepings. 



Liothrips zeteki sp. nov. 



(Figs. 1, 2.) 



Female: Length about 2. 2 mm. Color dark blackish brown or black; thorax, 

 tarsi, and tip of tube slightly paler; third antennal segment abruptly pale yellow. 



Head about 1.5 times as long as wide, broadest across or just behind eyes; cheeks 

 nearly straight, subparallel, slightly converging posteriorly, at extreme base with 

 distinct collar-like widening; vertex elevated, produced, anterior ocellus distinctly 

 overhanging; dorsal and lateral surfaces slightly roughened with transverse lines, 

 set with several short spines; postocular bristles truncate, about as long as eyes. 

 Eyes one third as long as head. Posterior ocelli opposite anterior third of eyes. 

 Antennae 1.6 times as long as head, moderately slender; segments 1 and 2 nearly 

 concolorous with body, 2 slightly paler in apical half; 3 pale yellow; 4-8 nearly black, 

 4 paler in outer apical half; segments 3-6 clavate, pedicellate; 7 oblong, pedicellate; 

 8 subcorneal; sense cones slender, colorless, formula: 3, 0-1; 4, 1-2+ 1 ; 5, 1-1+ 1 ; 6, 

 1— l 1 ; 7 with one on dorsum near apex. 1 Mouth cone subacute, nearly attaining 

 base of presternum. 



Prothorax about .6 as long as head, and (inclusive of coxae) about 2.4 times as wide 

 as long; all bristles present, long, stout, truncate, nearly black in color, the two pairs 

 near the posterior angles longest; coxal bristle truncate, about equal in length to 

 anterior marginals. Pterothorax wider than prothorax and a III lie wider than long; 

 sides straight, slightly converging posteriorly. Wings long, closely fringed, not 

 narrowed at middle; fore wings brown in basal fifth, margined with a slight shading 

 of brown, and with a median brown bar extending the entire length of the wing; 

 subapical fringe on posterior margin double for 14-16 hairs; hind wings brown at 

 extreme base and with a submedian brown bar which becomes paler toward apex 

 of wing. Legs moderately stout; fore tarsi unarmed. 



1 The explanation of the formula used in the description of the antennal sense cones has been 

 given by the writer in Ann. Ent. Soc. Amer., vol. I, no. 4, p. 285; and in Ent. News, vol. XX, 

 no. I, p. 29, footnote. 



