THE CANADIAN ENTOMOLOGIST 



309 



sinking of the former, Dr. Karny was led into error by Dr. Hinds' 

 description oi Heliothrips fasciatus Pergande,** in which the number 

 of segments in the maxillary palpi is erroneously given as three, 

 instead of two — a mistake which was copied also by Moulton.*** 

 Dictyothrips is thus readily separable by the three-segmented 

 maxillary palpi; while the number of antennal segments and the 

 decidedly anomalous character of the fore wings marks Partheno- 

 thrips, in my opinion, as one of the most distinct genera of the entire 

 family. 



The new species described below is the tenth one of the genus 

 to be recorded from North America ; and as the entomological fauna 

 of the tropical and sub-tropical south becomes better known, this 

 number will doubtless be greatly increased. 



Heliothrips striatus, sp. nov. — Figs. 11 and 12. 



Female. — Length about 1.1 mm. General color, dark black- 

 ish brown (nearly black) ; head and thorax paler than abdomen, the 

 former with a yellow spot each side of the ocelli ; legs dark brown, 

 with the femora and tibia paler at extremities; tarsi pale; abdomen 

 slightly paler at tip. 



Head about 1.6 times as wide as long and about equal in length 

 to prothorax; cheeks rounded to eyes, narrowed to base; dorsal 



Fig. 11. — Head and prothorax 



Fig. 12. — Portion of fore wing. 



Heliothrips striatus Hood. 



surface reticulate, roughened between the lines of reticulation r 

 frontal costa broad, much wider than first antennal segment; vertex 



