The holotype female Pseudopulex tanlan sp. nov. The specimen is from the Early Cretaceous (Yixian Fm.) of northeastern China. No. CNU-SIP-LL2013002, (D - J, under alcohol). (A and B) Photograph and line drawing; (C and D) Photograph of the head, C, without alcohol, D, under alcohol; (E) antenna; (F) femur of the mid-leg; (G and H) claw; (I) the segmental boundary of the abdomen; (J) terminalia of the abdomen. Scale bars, A and B, 2 mm, C - J, 0.2 mm.