417 



wider at apex than the following joint; the funicle joints all longer 

 than thick, the first nearly twice as long as thick, the sixth about a 

 third longer than thick ; club longer but keeping the same proportion 

 to the preceding joints, and the relative proportion of its own joints to 

 each other practically the same. Thorax nearly as in apterus, the poster- 

 ior margin of pronotum gently or deeply, irregularly arcuate, the 

 degree depending apparently on shrinkage, the mesoscutum consequently 

 appearing either transverse or triangularly prolonged medially; scutel- 

 lum not broadly rounded at apex but rather acute ; abdomen shorter 

 or not much longer than the head and thorax combined when the 

 former is stretched forward ; ovipositor distinctly although shortly pro- 

 truded. Sculpture differing remarkably, the head, dorsal surface of the 

 thorax and the abdomen being extremely finely reticulate and pro- 

 ducing an opaquely alutaceous effect or not at all shiny as in aptcnis. 

 The whitish pubescence is also much more abundant and conspicuous 

 than in apterus and other Hawaiian species, although by no means 

 so conspicuous as in species of Aphycus, Blasfoflirix or some species of 

 Atiagyrus. 



Length: (0.78 to) 1.29 (with head stretched forward); width of 

 vertex: 0.214; width of mesoscutum: 0.285 "im- 



Coloration nearly uniformly bittersweet orange (R. ), the under side 

 of the thorax and the legs considerably paler and yellowish, the scape and 

 pedicel nearly concolorous but a little browner, the basal two or three 

 joints of funicle usually dusky yellowish or more rarely dilute piceous, 

 the remainder of funicle and the club piceous or black. 



Male : Similar to the male of apterus but the scape is much narrow- 

 er, the last funicle joint and base of club with a row of about eight 

 or sometimes nine clavate hairs; thorax differing as in the female, the 

 abdomen ovate and a little shorter than the thorax. Sculpture as in 

 the female except that the apical half of the first tergite of the abdo- 

 men and the intermediate tergites have close set, microscopic lineola- 

 tions longitudinally arranged, thus producing an effect as if covered 

 with extremely minute, glistening scales. Pubescence a little more 

 prominent than in the female. 



Length: (0.50 to) 0.89; width of vertex: 0.216; width of meso- 

 scutum : 0.299 "Tn- 



Coloration about flame scarlet (R.), or slightly darker, the abdomen 

 a little redder, the lineolate area appearing golden yellow in most 

 aspects, the underparts of the thorax and the legs a little paler and 

 yellower ; scape and pedicel concolorous with the head, the funicle 

 and the club piceous. 



Described from 20 females, 41 males (type, allotype and 

 ])aratype8) collected on Eragrostis variabilis on the north wall 

 of Tao Valley, Maui, about one-half mile from the Xeedle, 

 Jidy 0, 1919 (Timberlake). 



