146 



INSECTS OF SAMOA. 



eyes black. Pro- and meso-nota and pleura castaneous brown with a rather 

 obscure broad pallid longitudinal median stripe extending from anterior margin 

 of pronotum to apex of scutellum which is brown ; posterior margin of pronotum 

 pale brown ; meta-notum and pleuron brown, the posterior apex of meta-notum 

 darker ; j^ro- meso- and meta-sterna pallid. Hemielytra greyish-white ; veins 

 fuscous except cubital (anal ?) vein and apical half of costal and subcostal veins 

 which are orange-yellow and the bifurcation of R + M at base of discal cell and 

 basal half of Sc which are greyish-white ; basal half of costal cell, outer half 

 of basal cell, claval margin, basal angle of discal cell, a long stripe along apical 

 half of Sc, a large oval spot in middle of discal cell, another more elongate in 

 middle of inner apical cell and smaller spots in the two outer apical cells, all 

 fuscous brown ; margins of veins also infuscate especially cross vein between 

 apex of Sc and R + M.* Wings whitish hyaline. Anterior legs pallid brown^ 



Text-pig. 24. — Luteva insolida B. White, hemielytron. 



the outer surface of coxae towards apex and the dorsal surface of femora, 

 especially the apex, and tibiae and tarsi castaneous brown ; bristles on under- 

 side of femora black. Intermediate and posterior legs castaneous brown the 

 tibiae gradually becoming paler towards tarsi which are pale ; no pallid or 

 darker annulations present, coxae pale brown. Abdomen dark brown with the 

 pygophor (hypopygium) and some obscure markings paler. 



Structure. — Anterior lobe of head about one and a half times longer than 

 posterior lobe (15 : 9) ; vertex between eyes slightly wider than width of eye 

 (8:6); transverse impression with its extremities in middle of eye, slightly 

 posteriorly curved ; antennae without long hairs, relative lengths of antennal 

 segments, 158 : 124 : 32 : 16. Pronotum about two-thirds the total lengths of 

 head (17 : 23), with an obscure median sulcation, the basal lobe very short. 

 Mesonotum to apex of scutellum as long as from transverse impression of head 

 to posterior margin of pronotum (28) ; width across humeral angles equal to 

 width of head including eyes ; distinctly trisulcate, the lateral sulcations with a 

 thin white membranous carina running along them. Metanotum about one- 



Homology of veins possibly not correct. 



