NOV., '04] ENTOMOLOGICAL NEWS. 293 New California Thysanoptera. BY S. M. DANIEL. Four species of Thysanoptera have been recorded from Cali-fornia : Euthrips occidcntalis, Euthrips tritici, Tlirips tabaci and Heliothrips fasciatns. To this list I am able to add Helio-thrips hccnwrrhoidalis and the four new species Criptothrips californicus, Eiitlirips pyri, Sericotkrips apteris and Caliothrips woodivorthi. Our species may be distinguished by the following synopsis: Female without ovipostor (Phlceothripidpe) Criptothrips Criptothrips californicus nov. sp. Female. Length 1.7 mm. ; width 0.3 mm. ; general color black, dark brown under the microscope. Head cylindrical, 0.3 mm. long, 0.15 mm. wide, about as wide as pro-thorax is long. Cheeks almost straight and nearly parallel, set with a few minute spines ; surface of head finely cross-striated. Eyes quite large, occupying about three-fifths the width of the head, quite finely faceted and protruding very slightly ; ocelli situated far forward, poste-rior ocelli close to margin of eyes, front one on apex of prolonged vertex of head, color same as that of second antennal segment. Antenme inserted below vertex, approximate at base, about one and one-half times as long as head, eight-segmented ; length of segments : 31, 53, 79, 68, 58, 31. 45, 31. First segment concolorous with head, second base concolor-ous with first, apex light brown, third and base of fourth and fifth pale yellow, the rest of the antennae shading to dark brown. Spines and sense cones quite prominent. Prothorax comparatively small, about one-half length of head. One prominent spine at each posterior angle, anterior marginal and mid-lat-eral spines wanting. Surface finely cross-striated. Pterothorax approxi-mately as wide as abdomen, nearly cylindrical, narrowing abruptly in front, gradually behind. Wings extending to about the seventh segment, fringe long and wavy. Legs long and slender ; fore coxa projecting strongly, fore femora scarcely thickened. Femur, tibia and tarsus bare, with the exception of a number of small spines, more numerous and longer on fore tibia than on the others. Legs concolorous with body. Abdomen long and slender, cylindrical to about the seventh segment, a little more than twice as wide as head ; from this segment tapers grad-ually to tube. Tube a little more than half the length of head, sides straight, converging slightly, width at middle about one-fourth that of head ; four terminal hairs approximately as long as tube, six shorter ones. Spines at sides of abdomen slender, pale, prominent, two on sides of each segment. Segments overlapping considerably ; sides of abdomen black, shading to russt .t-brmvn at tvnter.
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