Two new species of the genus Boettcherisca Rohdendorf, 1937,with a taxonomic key to species of the genus (Diptera, Sarcophagidae)

Abstract

Two new species of sarcophagid flies, Luzon, Philippines and B. nepalensis from Nepal are taxonomic key to eleven species of the genus is added. Boettcherisca cabrerai from described and figured. A Lopes (1961) revised the genus Boett-cherisca and described seven species with a key. Kano and Shinonaga (1977) reported two new species belQnging to this genus. In the surveys in Nepal, 1964 and in Philippines, 1975, two species of sarcophagid flies belonging to the genus Boettcherisca were obtained, and they were found to be new to science. They are described and fig-ured in this paper. A taxonomic key to eleven species of the genus is added. Beettcherisca cabrerai sp. nov. (Figs. 1-3, 7) Male. Body length 9.6-13.4mm. Head: Frons O.17 of head width at the narrowest part; frontal vitta black; frontal bristles 12-13, lower 2 or 3 not crossed;para-frontals and parafacials golden pruinose, with a row of fine hairs along eye margin, lower 3 to 5 relatively long and strong; antennae blackish brown, Iength of Srd segment about 2-2.8 × that of 2nd segment; arista dark brown and feathered on basal two-thirds: face black with silvery pollen; vibrissae in: serted at vibrissal angles; gena black, of sil-very pollinosity, with numerous black hairs; metacephalon with yellowish white hairs and *)J ra t. fiK, e th m ma : mmab vaata FF Jit\K# ut ve en tz\ig$ (+ll3 MR zz ]St r, X ee ft 1-5-45)43 occiput with whitish hairs; lst row of post-ocular setae regular, but other rows irregu-lar, setae of more than 3 rows black; palpi dark brown and slender. Thorax: Scutum grayish pellinose with 3 black longitudinal stripes; ac O+1; dc tL 5+4; ia 1+2; prs 1; h 3-5;Ph 2; nt 4J sa 3; pa 2; aPs 1; ds 1; ls 2; st 1+1+1; pro-pleuron densely hairy; meso-and meta-thoracic spiracles with dense dark brown pile. MtTing: Hyaline; Ri bare; R4.s with a row of about 10 short setae located dorsally, extending more than half way from basal node to r-m; several setae on ventral surface of basal node of R4 ÷ s; epau!et black; basi-costal scale yellowish brown; squamae creamy white, posterior margin of upper squama with short brown cilia; halter dark brown. Legs: Black; ti with 2 ad and 1 Pv; t2 with 1 ad, 1 v, 2 Pt and 1 Pd; t3 with a row of ad, long hairs on apical two-thirds of postero-ventral surface (small individuals without such long hairs),1 or 2 av and 2 pd. Abdomen: Black with silvery checkered pattern; without median marginal bristles on 2nd and 3rd tergites; 4th and 5th tergites with strong marginal bristles; sternites with siivery pollen; lst and 2nd genital tergites dark brown with numerous blaek hairs; genitalia as shown in Figs. 1 and 2; ventralia round; apical plate membranous; process of apical p]ate long and bifurcating at its tip NII-Electronic