Kachinoperlidae, Chen, 2022

Chen, Zhi-Teng, 2022, The larval morphology of a new mid-Cretaceous stonefly and its systematic position in Plecoptera, Arthropod Systematics & amp; Phylogeny 80, pp. 423-438 : 423

Family Kachinoperlidae fam. nov.

Type and only genus.

Kachinoperla gen. nov.

Diagnosis.

For larvae. Body robust and slightly oblate. Head wider than long; anterior ocellus present but tiny; postocular area with moderate setae; occipital row of short spinules irregularly scattered and sinuous; antennal segment near glabrous, apically with sparse short spines; predaceous mouthparts; glossae near as long as paraglossae; maxilla well-developed; cardo broad, laterally with dense short spines; stipes elongated, with rounded, glabrous outer margin; lacinia elongated, with two giant apical teeth and an inner comb of marginal spines; maxillary palpomeres elongated, apical palpomere much thinner and approximately half in length of penultimate segment; mandible with three pointed apical teeth, anterior half of inner margin with a comb of cylindrical spines; molar area unmodified; labial palp similar in length to maxillary palp, apical palpomere thin and slightly shortened, apex obliquely truncate. Pronotum near trapezoidal, with dark margins and two posteromedial pale spots, posterior margin with long spines. Wing pads banded, outline circular, dorsally and laterally covered with dense spinules; notal contour invisible; thoracic gills absent. Legs with dense long swimming hairs; tibia with two giant and several smaller apical spurs; tarsi with first two tarsomeres much shorter than third one. Abdominal segments covered and posteriorly fringed with long cylindrical spines; tergum 10 strongly projected backwards; paraprocts subtriangular, with straight inner margins and rounded posterior margins; cerci with sparse giant spines along inner and outer margins.