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TWO NEW SPECIES OF PROTURA FROM CHINA

YIN WEN-YING East China Entomological Institute Academia Sinica  
The present paper deals with 2 species of Protura which were collected from EastTien-mu Mountain near Chan-Yaung Temple, Chekiang Province, 8--11, Ⅷ, 1962.Both of them are new to science and their specific diagnosis are summarized as follows: 1. Acerentulus tienmushanensis, sp. nov. Length of entire body 1116--1404μ(70% Alc. preserved and mounted in 4% poly-venyl alcohol in lacto-phenol) in fully expanded females. Integument well sclerotized,reddish yellow throughout. Apodemes well developed. Head oval, 128--134μ in length and 95--96μ in width. Labrum slightly protruded.Pseudoculi distinctly oval and bilocular, 12.5×9.6μ, dorso-lateral, each situated slightlyin front of middle of lateral margin. "Filamento di sostegno" of maxilla branched, itsouter branch much shorter than the inner one. The distal part of the inner branch 12--13.7μ long. Median pairs of cephalic setae stout, 16--20μ in length. Mouth parts projected anteriorly: mandible long and slender, pointed towards thetip; basal segment of the maxilla very stout, but the lacinia thin and slightly curved;galea divided apically into 3--5 pieces. Maxillary palp 3 segmented, tipped with 6--7setae. Thorax 3-segmented. The chaetotaxy being summarized in table 1 in the Chinesetext. Fore-thoracic leg the longest, its tarsus 96μ and claw 25.6μ long, TR=3.75. Sen-sory setae t_1 comparatively short and clavate, nearer to 3, α: p=76.8: 19.2=4; t_2 veryslender and t_3 lanceolate. Middle tarsus 41.6μ and the claw 20.8μ long, with a tiny spine at proximal innermargin of the claw. The hind tarsus 43μ and the claw 22.4μ long, with a tiny spinealso. Abdomen with 12 segments, broadest at the second or third segments. The abdo-minal appendages typical of this genus. Pectinated comb of tergite Ⅷ consists of 8--9teeth of nearly equal size. The present species, A. tienmushanensis, sp. nov. is closely related to A. confinisBerlese in the general feature of the body, the shape and position of the sensory setaeof the fore tarsus and the chaetotaxy of the tergite of the abdomen, but it can be dis-tinguished from A. confinis by the number of setae on the sternites of the abdomenand the shape of the distal part of the "Filamento di sostegno" of maxilla. It might beseparated from A. catalanus Conde and A. kisonis Imadate by the absence of the anteriorsetae on sternite Ⅷ and by the position of the sensory setae c, α on the fore tarsus. 2. Eosentomon collarum, sp. nov. Length of body 1073--1160μ in expanded adults. Integument well sclerotized and coloured yellowish or almost white. Apodemes well developed. Head oval, 125.3--147μ in length and 100μ in length. Pseudoculi indistinct andovate, lateral, about 12.8μ long. Median pairs of cephalic setae weak, 12--15μ long.Mouth parts far exceed the foremargin of the head. The distal end of the blade-likemandible with parallel longitudinal striae. Inner branch of the maxilla (lacina_1) veryfine and pointed terminally, the outer branch(lacinia_2) being a slightly curved blade; theouter part of the galea divided apically into 4--5 pieces and its inner part being a thinand transparent plate. Maxillary palp 4-jointed and tipped with 6--7 setae. Labial palp2 segmented and near to its base surrounded with 5 stout setae. There is a pair of tie-like protrusions on the dorsal side between the head and thepronotum, each about 38--42μ long and 12--16μ high. Pronotum poorly sclerotized, its anterior part being overlaped dorsally by the head,33--37μ in length and 100--110μ in width. Mesothorax without dorsal apodemes,each spiracle with an inconspicous anterior and posterior tracheal recess, spiracular setaeshort. Metathorax similar to mesothorax but with a short dorsal transverse and a longi-tudinal median apodemes. Fore thoracic leg long, tarsus 98--105μ long and the claw 18--19.2μ long,TR=5.3--5.5. Sensory seta t_1 clavate, 9--10μ long, a:p=52: 52=1. Middle tarsus 49--51μ long, claw 11.2--12.8μ long. Hind tarsus 58--60μ longand the claw 12.8--13.4μ long, without inner spine on both pairs of tarsus claws. Abdominal apodemes well deve
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