26 



UNITED STATES NATIONAL MUSEUM BULLETIN 2 03 



mcnt about 2J2 times us long as second, graclually nar- 

 rowed toward the rounded apex but sometimes suddenly 

 broadened at base; arista moderate in lengtli, l)la(k. 

 witli basal jjortion ligiit yellow. I'alpus rather narrow, 

 nearly the same width tiirough tlie whole length and 

 slightly curved (h)rsally, light yellowish. Proboscis 

 rather small, brown to dark brown. 



Thora.\ yellowish brown to reddisli brown or dark 

 brown, more or less obscured by a whitisli tonientum; 

 mesonotum normal in shape, with very short yellowish 

 pubesceni'e which becomes distinctly long and whitish 

 on tiie humeral calli; disk witii lliiee nontomentose 

 longitudinal stripes, poslerioi' half of median stripe 

 divided into two along median ])(»slsutural callus, 

 lateral strijjes conspicuou.sly widened anteriorly, an- 

 terior half somewhat triangular and ])osterior half 

 usually very faint, both lateral stri])es Ijeing interrupted 

 at the sutures; reIati^•ely small humeral, conspicuously 

 elevated notopleural, luirrow and hmg transverse 

 presutural, long and slender moderately cur\ed lateral 

 postsutural, and very narrow median jiostsutural calli, 

 light yellow to whitish yellow. Plcina silvery white 

 tomentose except for marginal areas of yellow spots, 

 of which the sterno])leural is comparatively large; 

 mesophragma reddish brown or brownish, more or less 

 silvery white tomentose, Scutellum moderate in size, 

 with rounded apex, light yellow to sometimes slightly 

 darker. All bristles brown to black, two pairs of scapu- 

 lars, two notopleurals, one anterior sujjra-alar, two 

 posterior supra-alars, two prescutellars, and one 

 mesopleural. 



Abdomen about as huge as thoi'ax, paler tliaii 

 mesonotum, second tergmn lighter; lateral nuugins of 

 first and second terga more or less blackish, the latter 

 sometimes brownish anteriorly and longest of all the 

 terga; third tergum usually with a rather narrow black 

 transversal basal band which is sometimes obsolete; 

 male with cilia lion of blackish-brown bristles; fourth 

 and fifth terga each with a very narrow black longitu- 

 dinal median stri])e interrupted at suture, and with a 

 pair of black short lateral basal transverse bands, that 

 on fifth tergum almost always very small; median stripe 

 sometimes visible at ba.se of third tergum; shining 

 spots on fifth tergum roundish and brownish, in the 

 female rather transverse; pubescence very short, 

 yellowish, somewhat longer and brownish at lateral 

 margins of two basal terga; ovipositor comparatively 

 small, brownish yellow to reddish yellow, lateral 

 margins carinate; sterna comparatively broad. 



Wing hyaline, very slightly smoked; pterostigma, 

 Ri, ajid R.f yellowish brown to brown, the latter paler 

 on posterior half or more; a large ajjical spot, a rather 



broad transverse spot on ni-cu, latlier broad, iu'own or 

 blackish-brown anal stripe, r-iu often Iwownish bor'- 

 dered; supernirmerary lobe of male conspicvrous, with 

 many black short shaggy bail's; jjrolongation of arm! 

 cell distinctly longer than the cell ijrojjei- in male liul 

 not in female. 



Legs light yellow to light reddish yellow. Foreleg 

 shorter than mid- or hindlegs; femur with long browirisii 

 bristly hairs on apical half of dorsal surface and some 

 long hair's on \entral surface. Midleg slightly longer- 

 than hindlegs; ferrrur with slender, long hairs ventr'ally, 

 a blackish irregular-shaped spot on apical lliird of 

 ventral sur-face; tibia brownish on basal area \ en t rally, 

 the spur of moderate length, black, accompanied l)y 

 one long yellowish bristle. Hind femur with lorrg 

 brownish iiristly hair's on apical half of dor-sal surface; 

 hind tibia with comparatively sruall but distirrct brush- 

 patch (pi. 9, fig. 17) on inter-nal apical portion. All larsi 

 with three or four- a])ical segments more or less dark- 

 ened; all femora and the hind tibia slightly brownish at 

 apices. 



Length: Body 6-7 mm, wing 6-7 mm. 



Material examined. — Four females and one male 

 collected by the author at Iriomote (Jan. 21) and 

 Ishigaki (Feb. 4), respectively; some specimens fr-om 

 Miyako Is., collected by scientists of Miyako Plant 

 Quarantine Office, A])r. 5, 1953. 



Hosts. — Momonlica charaniia, Luffa cylindrica, Cii- 

 cumis melo, Cucitmis sativus, Cucurbifa ntonchuta, 

 CitruUun ni/(/aiifi. 



Striimcta asatoi, new species 



Plate 10 



Female. — Head dislinctly narrower than mesono- 

 tum, neai'ly twice as wide as long. Frons (pi. 10, fig. 3) 

 narrower than one-thinl the width of head, hardly 

 broadened anterior'ly, with straight lateral margins, 

 orange yellow with three pair-s of blackish lateral spots, 

 a somewhat triangular median spot and a posterior 

 transverse band, the median spot connecting with two 

 pairs of the anterior lateral spots, and posterior band 

 including the ocellar triangle; pubescence very s]iarse 

 and wlutish except orr mediarr spot, which is furnished 

 with brown erect setae; lunule blackish. Face (pi. 10, 

 fig. 4) quite bare, light yellow, more or less shining, 

 with one pair of rounded, deep black lateral spots, 

 each with a very short acute point dorsally; eye-nnirgins 

 rather narrow but sharply defined; antennal gi'ooves 

 rather shallow; face in i)rofile slightly hollowed at about 

 the middle, then perpendicular-ly straight to oral mar- 

 gin; cheek low, with rather conspicuous gerud groove. 



