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brown or ferrng-inous helow, the tarsi clear ycllo\visli-tcstaceoi;<, 

 with the basal joint darker brown. 



Antennae long and slender, slightly longer than the whole 

 thorax, all the joints elongate, the very long third joint being 

 one and two-thirds the length of the fourth, the latter above five 

 times as long as wide, the penidtimate joint fully twice as long as 

 its greatest width ; only the scape pale-coloured. Head conspic- 

 uously concave above, dull, with excessively dense minute punct- 

 uraticn ; raised median line extending forward from the front 

 ocellus, distinct. Pronotum with very minute close punctures, 

 the transverse sulcature deep, the anterior of the two divisions 

 so formed, not half as long as the posterior one : mesonotal con- 

 striction slender, elongate, about twice as long as its greatest 

 width, densely minutely punctate or shagreened, posteriorly with 

 some fine transverse wrinkles ; the whole thorax with conspicu- 

 ous, scattered, erect, pale hairs. Front legs with the basal and 

 fourth tarsal joints nearly equal, chelae of the usual type of 

 Jassid parasites, the lamellate denticles of fifth tarsal joint well- 

 developed nearly reaching the articular cavity ; the claw mod- 

 erately curved with some widely separated, pointed denticles 

 projecting from the median groove between the ridges. All the 

 legs are conspicuously, but not densely, clothed with pale erect 

 hairs. Abdomen very dull, impunctate. clothed with longish 

 erect sparse hairs like those on the thorax. Length 5 :5 mm. 



HAB. Xogales. Arizona ; larva pupated from parasitized 

 Jassid nymph on willow 14.IX.06: bred 20.XI.06; numlier 2480. 



7. Clialcogoiiatopiis frcquciis sp. nov. 



Ferruginous, the apical alxlominal segments sometimes darker 

 brown or blackish, posterior and intermediate femora concolorous 

 throughout, not black apically, antennae more or less pale on the 

 basal joints, the first three generally yellow, but sometimes only 

 the second is distinctly yellow, the scape and third joint being 

 brown, the fourth and following may also be obscurely yellow- 

 ish, the apical joints being black. Abdominal petiole alwavs 

 black. 



Head dull, with close minute puncluration, the antennae 

 slender and of moderate length, no joint being transverse, the 

 third joint one and two-thirds the length of the fourth, the 

 penultimate one and a half times as long as its width. Pronotum 

 smooth and shining, with very sparse, short, erect hairs in fresh 

 examples, mesonotal constriction longer than broad, propodeuin 



