gl’ Rie’ Be MeN nwo’ KB BVI Bie’ HX \ Ge HX Be HN ER” BSR DEB UR Le Re BBN CRN HK BR BERR 4 HB pe? GN fe? BRM ee OR ee NBR NR A NN RE ; Asilus okinawensis n.
sp. (Pl. XX, Fig. 23, 2). Fuscous. Face silky pale yellow, mystax pale yellowish, above and below mingling a ew black bristles. Proboscis at the base and cheeks with whitish hairs, palpi and vertex with short black hairs. Antennae fuscous, with short black hairs. Thorax silky yellow, in the middle with a broad fuscous stripe, which being divided by a narrow grayish stripe, and which tapers towards the hind margin, on each side with 2 fuscous spots, black pubescented. Scutellum grayish yellow, with the concolorous short hairs, at the hind margin with 2 black bristles. Wings hyaline, slightly infuscated, being somewhat paler in the middle and at the base, veins fuscous. Halteres yellowish. Abdomen fuscous, each segment, except thelist 2 segments, on the hind margin grayish yellow, with black hairs, on the sides being yellowish pubescented, pygidium shining black, conical, compressed, at the tip being narrowly truncated. Legs black, with pale yellowish short and long hairs, those of the tarsi being black, and their under-sides densely fulvous pubescented, claws black, at the bases fulvous. Length—15 mm. ; exp. 21 mm. Heb.—Okinawa ; collected by Mr. M.
Kuroiwa. ・ MS SS mS SD So Ril+es ぐ (38o) gt a2 Stenommatius formosanus Mats. ee外瑞記芝 —————————— RRO Rt He BS (333)
gue ECR \ Oe Oi Oe RAR RAINS KRW RANI IBM NA’ Os Cima PRR AT RR DNA O Be TMA SENS KB HK IHS ya Kio MRS RNB. We BR MB’ BR eR ay 1] Bs al ~ RAN NY RC RER 4 Ke Bae SR WER RAR, | RN Ke RHP Cue guna bia ec DAA’ WR DRoxnkKaeln sey’ 24 wa HEIR CHRO’ Bes er ne’ EASE ESS oe RN RIK ARN AR EIA Rte IE NT ee c Wee NHR I | RN RAT BRI BARK IY) BVNRRKRANRN ER x [RS aN RMI NRK BS WER Bie Bev KR I | RANA” PR wWmm (eo Hon wpn ws ne 426. wel HER BRR BRYA HAMM INES SPAHARERAR RY’ Stenommatius formosanus n.
sp. (Pl. XX, Fig. 24, 2). Fuscous. Face silky white, mystax white, above with 6 black bristles in two rows; vertex with black hairs ; proboscis fuscous, at the base pale yellowish, with the cheeks whitish pubescented, maxillary palpi with yellowish bristles. Antennae yellow, the third joint fulvous, the arista with the plumose hairs fulvous. Thorax tetaceous, above fuscous, humerus and a spot above it testaceous, with black hairs and bristles, on the sides and at the hind margin mingling a few yellowish hairs, scutellum and metanotum testaceous, with the concolorous hairs. Wings hyaline, slightly grayish infuscated, veins fuscous, at the (334)
base testaceous. Halteres pale yellowish. Abdomen fuscous, on the sides and the first 4 segments on each hind margin _testaceous, with fulvous hairs, the last 2 segments with fuscous hairs. Upper genital plates of the male large and curved inwardly and touch each other at the apices, each being provided with a hook-like projection, the lower plates being smaller and of a conical shape. Venter testaceous, the last 3 segments being fuscous. Legs yellow, each femur at the apex with a black speck, with short fuscous hairs, mingling a few yellowish hairs ; claws brown, at the bases fulvous, pulvilli dirty yellow. Length—12 mm, ; exp. 21 mm. Hab.—Formosa (Horisha) ; collected by the author, rare. ゃ Stenommatius n.
な .
Much resembles zo O7mmatius WK., but differ from the latter as follows :
Body much narrower. Face in the middle with 6 bristles in 2 rows. Mystax much less than that of Omzmatius. Ocellar region with 2 proclinate bristles. Thorax in the middle with 3 longitudinal rows of bristles. Femora without bristles, only the hind femur having a preapical bristle, tibiae at the apical halves with long bristles, the hind tibia being provided witha prebasal b:istl2. Pulvilli much narrower, being broader towards the apices. Type—Stenommatins formosanus Mats. (4) Oo SP@IONSHI6w a+ | Bo 外 Lasiopogon cinctus F.
RH y\ee eeRe :
sce) Kel Sn Qn? But Rn () Bw’ BSQv ose si. Baer ge o HR RA RECRR BE He RNS BRASRIUSAMRN 1 Ie Save -» つぶさ っ ARO Rt ae Be (335)
em d+ see SMe BK SAMBA RDN BARE DONKANRY SER TRS ne RIA RM UA MSNA I ROR KC RRR YN Re BIRR PN AK Mo@dha? MBIKMIRN KN SBEBV\SKRARONES! MMR B RN REI ORME K Bisel’ BOQY MP Re’ ABiK AH .
KBMIRA” BARR AS Cee NR V EY ERR EY Ri eB RYT REA I A A RE-—RER KE HR’ a a 6 .
> >) 9 su 8 HE WO CV 90 Hu 8 A Bilt) Ha oF + aa Psilocephala sapporensis Mats. Make H\, Se BH (Therevidae) gece)! K\ BEI Men Bed’ ONE REV BE. Hae’ Rs Ike HR S′ RNB. RANI BO Gary rx vr + Sew’ Ski gnr’ Bory .
XO \1BKKA HW mk (7 ERR AS BWR A BARB OM KBAR AA AEK RAE SR me} NA Ken eee’ RR RR BRR YS Pe CP ee BRR KRSNA eget A SM KREBS KS BPN Me RAIN S\ESRY SRE RH SH) RRP N\A RROD KA’ BBIKORNRN Beri kosSrs RUIRYRINRESVS し 4 me Se Be HN Re’ SLERB i OP Ban HEI RAR Re Oo ( 336 >}
KO SERED RUS i ORR BB RBS EH NK” Psilocephala sapporensis n.
sp. (Pl. XX, Fig. 2, 2). Black, with black hairs. Face on the sides whitish prinuose. Proboscis short, at the base white pubescented, at the ——+* apex fulvous, cheeks with silvery white hairs, Antennae black, the third joint as long as the first two taken together. Thorax in the middle with 2 grayish stripes, on the sides and scutellum grayish pruinose, the latter at the hind margin with 6 erect bristles. Wings nearly hyaline, grayish, at the bases pale fulvous, veins and stigma fuscous. Halteres fuscous, the knobs at the apical two thirds pale fulvous. Abdomen black, long, at the apex gradually becoming narrower, with black hairs, on the sides grayish white pruinose, the first 3 segments on each side and at the hind margin (except the middle) white pubescented, pygidium in the female at the apex with black (about 10) needle-like projections, at the lower plate with 3 long appendages. Venter grayish white pruinose, the 2nd and 3rd segments each at the hind margin pale fulvous. Legs black, with black hairs, the first 4 femora mingling some whitish hairs, claws dark fuscous, pulvilli dirty yellow. Length—15 mm. ; exp. 27 mm. Hab.—Hokkaido (Sapporo) ; not rare. ての6.しと co ts 30 Goh (\ <0 at 48 4 I eS 中 g, at Thereva maruyamana Mats. Neeyreh BRE gs Kame men BEd’ Ws SO Or ke BRR NR RN OER Cm nm mk Co RB ww Ke Bl He Koen een Baw) oes 1] SR AH — SS enn RO Rt ES (337)
BO Kt mS —» Raima aXe ey we | SRR A EPA RR YK BW me Be. Aa” B My m mm (* RS HONK BWA RWB Dron Kan ee SXwee s me’ oe SG 4 Wee Se 4 Ree Xm HE Ke BRA Be BN mh (o BSI OW RN’ RM) GR YRiIS\ HR Ke RIEBAFESRRVERITA\NRRRAN NAN OHM a Ke Blo Rey EA HER HN Ko DRS A RE RES VENER RRR” Be ‘KO RI XM*RINGS WS ni Kim? Wey eS i mn mM? BSXys Kay > NBER RN, ER wR. we Se) ee’ Re ARR BRE’ BRAVA BR ie NK? 2 et sa)(s2 BE)” KK つ ヽ ares BE fA 脚 つ ヽ >» Thereva maruyamana n.
sp. (PI. XX, Fig. 3, ¢). Gray, grayish white pruinose。 Face silvery white, with white hairs, vertex fuscous, with black hairs, Underside of the mouth and cheeks white pubescented, occiput with black hairs, proboscis brown, short, somewhat hook-like upturned. Antennae fuscous, grayish white pruinose, the first 2 joints with black hairs. Thorax with 2 white longitudinal stripes, black pubescented, on the sides with white hairs. Scutellum white pubescented, at the hind margin with 6 black bristles. Wings hyaline, witha grayish shade, vcins and stigma fulvous. Halteres fuscous, at the bases fulvous, grayish white pruinose. Abdomen black, with black hairs, on the sides white pubescented, the first and base of the 2nd segment grayish white, a basal triangular spot on each side of the 2nd to 7th segments white, of which the anterior 3 pairs white and the posterior 3 pairs black pubescented, the 8thsegment entirely black, at the apex on each side with 7 fulvous filiform appendages. Venter grayish white, the 2nd and 3rd segments each on its hind margin fulvous. Legs grayish white, coxae and femora with white hairs, tibiae and tarsi dirty yellow, — (338)
with black hairs, claws brown, pulvilli dirty yellow. Length—12 mm. ; exp. 27 mm. Hab.—Hokkaido (Sapporo) ; not rare. (384) くつ 人 SQ Ri+) a+ (2) g 90 Thereva ishikariana Mats. Nesey, sh RPE Do REWER NS Be. ee’ Riss RR) Br aABro” RIAs ra\eyns EX No Bar A NK eRe NM Rae I ARR 4 ESR IE A NK” REL ae By’ eo 4 aka’ Hy. RAK A Bee Bo FBRHD NK Ce HR AO NN OS SA REY AK YE BK RPK IC RMN RRR AN KER IR He | BERD BNR” Ba” BRR WE He ARREARS KR ee OS SR eR RR RRA RR NU GD RE (RES Re BR BRN EB AR? OR NN TN RS RH RST 1 ARI OR NR RR NA RRA KR RE RK Re RED WRENNER IRRN KRW AA ROR HER YRS IRON Re BR a & HR oR | SE BIR BE om MR), RRS oh OB a RO ee 4 ae (339)
RO Rb EBS Se ————— Thereva ishikariana n.
sp. (PL. ROG Ih, ISG Aly 2) Black. Vertex shining, front with black hairs, face densely white pubescented, occiput with black bristles. Proboscis upturned, fuscous, with brownish hairs. Antennae black, the third joint much shorter than the first. Thorax dark fuscous, with black hairs, with 2 grayish stripes, in the middle of which with a black narrow stripe, on the sides and at the hind margin, as well as on the scutellum with short fulvous hairs. Wings subhyaline, with a shade of grayish brown, stigma, veins and their environs fuscous. Halteres fuscous, on the basal halves of the stems fulvous. Abdomen black, with black hairs, on the sides yellowish pubescented, the first 3 segments on each hind margin with fulvous hairs, the 2nd, 3rd and 4th segments each at the hind margin fulvous, which gradually becoming narrower towards the apex. Pygidium shining, on each sidew ith 6 fulvous bristles. Venter grayish white pruinose, the 2nd to 5th segments each at the hind margin fulvous, which gradually becoming narrower towards the apex. Legs fuscous, tibiae and metatarsi, the both except the apices, fulvous, coxae white, femora fulvous, tibiae and tarsi fuscous pubescented, claws brown, pulvilli dirty yellow. Length—15 mm. ; exp. 2Imm. Hab.—Hokkaido (Sapporo) ; not rare. Q¢ew Hosa Rit | Gs oF # at Leptogaster basilaris Coq. Beeivge CESK sie)’ BRE RISXV RIS Hei we oswi aed’ Asie oh oe HEX 2204 \ Kae 4 HR’ BRYA i Mn RN Bei. own Bat ROR RN S RUE MR BKR IRD AN RIM DO\RONeY BAUER AR BS (stO)