218 ' INSECTS OF SAMOA. 



tibial spines in length not exceeding diameter of tibia. Genital claspers 

 distinctive. 



Length 5-6 mm., width 2 mm. across tip of scutellum. Head : width 



1- 01 mm., vertex -38 mm. Antennae : segment I, length 1-04 mm. ; II, 



2- 27 mm. ; III, 1-68 mm. ; IV, 1-18 mm. Pronotum : length 1-12 mm., width 

 at base 1-73 mm. 



Savaii : — Salailua : 2 specimens (holotype and allotype), 22.V.1924 (Bryan). 

 This species may well represent a subgenus of Lygus, but the writer is 

 unable to place it in such a group or related genus. 



24. Lygus swezeyi, sp. n. 



In the key by Poppius (1914) this species runs down to L. gestroi Popp., but 

 differs at least in colour markings ; distinguished by the uniformly pale cuneus, 

 with black on pronotum covering basal angles only. Colour aspect rather 

 similar to L. samoanus, n. sp., but the first antennal segment much shorter, only 

 equal to two-thirds the width of head across eyes. 



Colour. — Ground colour pale yellowish, clavus and basal angles of pronotum 

 black ; inner apical angles of corium, membrane and veins dark fuscous ; head 

 reddish, tylus and eyes black, antennae black, basal segment reddish to 

 brownish on basal half ; pleura, sides of abdomen, scutellum in some specimens, 

 apical half of hind femora and apices of front and middle legs, reddish ; tibiae 

 reddish to fuscous, spines brownish, tarsi fuscous. 



Structure. — Length 5 mm., width 1-9 mm. Head : width -99 mm., 

 vertex -39 mm. ; position vertical, frons prominent, vertex ecarinate, base of 

 tylus confluent with frons, only slightly depressed. Kostrum, length 1-55 mm., 

 nearly attaining hind margins of middle coxae. Antennae : segment I, length 

 •68 mm., cylindrical, finely pubescent ; II, 1-9 mm., slender ; III, 1-43 mm. ; 

 IV, broken. Pronotum : length 1-08 mm., width at base 1-62 mm., lateral 

 margins moderately sulcate, disc minutely punctate, calli evident as a trans- 

 verse swelling which extends over sides of disc, making the anterior angles 

 appear rounded. Dorsum clothed with fine, short, pale yellowish pubescence ; 

 scutellum smooth, impunctate. Embolar margins moderately and evenly 

 arcuate, embolium flat. Legs moderately long, hind femur 1-99 mm. in length, 

 tibia 2-9 mm. ; tibial spines in length about equal to diameter of tibia. 



Length 3-9 mm., width 1-6 mm. just behind scutellum. Head : width 



