682 FAUNA HAWAIIENSIS 



margins sub-iDarallel. Antennae about twice as long as head. Ocelli present. Eyes 

 not very prominent laterally. Face long, lateral margins sub-parallel, then narrowing 

 apically. Pronotum anteriorly as wide as the head, posteriorly distinctly wider, warts 

 absent. Flight-organs absent. Anterior legs unarmed, femora incrassate, more than 

 twice as long as the tibiae." 



Type. Nesothrips oalmcnsis Kirkaldy. 



Nesothrips oalmcnsis Kirkaldy. 



" Polished, shining, pitchy-blackish ; apices of anterior tibiae, the tarsi, etc. paler. 

 Face bristles absent. Antennae 5, 5, 9, 8^, 8, 6, 8. Two longish bristles (lateral and 

 sublateral) near the posterior margins of at least five tergites. 



"Tube with two terminal bristles. 



" Length i-| mm. 



" Hab. Oahu, Mt. Tantalus, 1300 feet (O. H. Swezey), probably on flowers." 



The genus Nesothrips would seem closely to approach the preceding genus 

 Oedeinothrips. In the present form however we find that the ocelli are present and 

 face bristles absent. If the specimens described by Kirkaldy are females (presumably 

 so on account of absence of fore-tarsal tooth) then the fore-femur is considerably 

 longer than in Ocdcnwthrips laticeps. The antennae are shown as seven-segmented ; 

 it is probable, almost certain, that the two apical joints were closely segmented and the 

 suture thus escaped notice. The statement that the tube has only two terminal bristles 

 is evidently erroneous. 



DoLEROTHRiPS, gen. nov. 



Allied to Tricliotlirips Haliday. 



Head longer than broad, cheeks more or less sparsely spinose, eyes moderately 

 small, ocelli present and post-ocular bristles usually long. Mouth-cone short, broadly 

 rounded at apex. Antennae as a rule twice as long as the head. Fore-femur 

 incrassate ; fore-tarsus armed with a well-marked tooth and fore-coxa armed with 

 numerous short stout spines. Anterior-marginal prothoracic bristles usually obsolete ; 

 others well developed. 



Wings generally vestigial. 



Abdomen broad ; tube shorter than the head ; abdominal bristles as a rule well- 

 developed. 



Male smaller, with abdomen not so broad. 



