该文报道了采自云南省和西藏自治区的库蠓属屋室亚属2新种：勐远库蠓，新种[Culicoides（Oecacta）mengyuanensis sp.nov.]和类林氏库蠓，新种[Culicoides（Oecacta）sublini sp.nov.]。勐远库蠓的复眼和口甲与亚东库蠓[C.（O.）yadongensis Chu，1977]相近似，但后者触角嗅觉器分布在3、11~15节，触角比为1.04与本新种明显不同。类林氏库蠓与林氏库蠓[C.（O.）lini Kitaoka et Tanaka，1985]相近似，但后者为小型种，翅长0.93 mm，复眼的小眼面有柔毛，翅基淡斑与臀室基部的淡斑相连接，径中淡斑与中2室的淡斑不连接，与本新种明显不同。新种模式标本保存在沈阳军区疾病预防控制中心（沈阳110034）。

Two new species of the Culicoides(Oecacta), C.(O.) mengyuanensis sp. nov.,and C.(O.) sublini sp. nov. are described from Yunnan and Tibet in China. C.(O.) mengyuanensis sp. nov. is somewhat allied to C.(O.) yadongensis Chu, 1977 in the eyes and buccal armature, but is distinctly different from antenna sensilla coeloconica present on segments 3, 11-15, antennal ratio(AR)1.04 of female C.(O.) yadongensis Chu, 1977. C.(O.) sublini sp. nov. is similar to C.(O.) lini Kitaoka et Tanaka, 1985, both are distinctly different in the small-sized species(wing length 0.93 mm), eyes with interfacetal hairs, wing base portion with a pale spot, and contiguity with a pale spot in basal portion of Anal cell; wing with a pale spot over basal potion half of R1 cell and r-m cross-vein, and separated with a pale spot in middle potion of M2 cell of female C. lini Kitaoka et Tanaka, 1985. The type specimens are deposited in the Shenyang Command Center for Disease Control and Prevention (Shenyang 110034).