Horváth Géza (szerk.): A Magyar Természettudományi Múzeum évkönyve 8. (Budapest 1910)

Bagnall, R. S.: On a small collection of Thysanoptera from Hungary

374 richard s. bagnall Habitat: A single example of tbe brachypterous form taken by Mr. C. CHYZER at Bodrog-Szerdahely, August 17th 1892. Mr. KARNY'S examples were taken on grass at Ûberweiden. Austria, August 29th 1909. 6. Acanthothrips bidens n. sp. (Pl. XH. hg. 1—6). Length 1*85 mm.; breadth of mesothorax 0*36 mm. Colour yellowish brown, all tarsi yellow ; fore-tibiae yellow, lightly shaded with greyish brown ; intermediate and hind tibiae yellow only at knee and tip; antennae with two basal joints concolorous with head, basal half of third and fourth, basal third of fifth and base of sixth, yellow, and rest of antennae greyish-brown. Eed hypodermal pigment diffused over the whole of the thorax, more lightly diffused at the forepart, sides and base of head, and thickly deposited down each side of the abdomen. Head about one and one-third as long as broad behind eyes and twice as long as the prothorax. Cheeks slightly arcuate, narrowed to base and furnished with three or four minute spine-set warts. Eyes finely facetted, black ; post-ocular spines fine and set moderately well back ; ocelli large, red. set close together with the posterior pair on a line drawn through the anterior third of eyes. Mouth-cone pointed, reaching almost across the prosternum. Antennae approximate ; second joint cylindrical, elongate-cyathiform ; third and fourth broadly claviform the third being laterally emarginate within : fifth claviform : sixth and seventh fusiform, constricted at base and truncate at apex; eighth pointed to tip. Third joint one and two-fifths as long as second and equal to fourth ; fifth, sixth and seventh, seven-eighths of fourth, fifth and sixth respectively, and apical joint two-thirds the length of the penultimate. A pair of long sense-cones on each of the joints three to six. Prothorax transverse, twice as long as broad. Bristles at each anterior angle exceptionally long ; antero-marginal pair obsolete ; midlateral, postero-marginal and pair at posterior angles moderately long. Pterothorax a little broader than long and broader than the width across fore-coxae, sides of metathorax roundly and slightly narrowed to base of abdomen. Wings reaching to seventh abdominal segment, median vein obsolete, cilia long. Each fore-coxae armed with one moderately long and a pair of shorter prominent spines ; fore-femur two and onehalf times as long as broad, armed with a pair of short and moderately sharp teeth near tip within ; fore-tibia produced to a point at tip