贵州医科大学学报

1980, (02) 157-164

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血厉螨属的四个新种
ON FOUR NEW SPECIES OF THE GENUS HAEMOLAELAPS FROM CHINA(ACARINA: LAELAPTIDAE)

顾以铭;王菊生;
Gu Yi--ming;Wang Chu--sheng Department of Parasitology

摘要(Abstract):

<正> 在整理从贵州省鼠类体表采得的寄生革螨中,发现其中有4种血厉螨系未经描述过的种类,特记述于后。文中所用测量单位均为微米。模式标本皆存放在贵阳医学院寄生虫学教研室。一、短尾鼩血厉螨Haemolaelaps anourosorecis,新种雌螨(图1-3)体呈椭圆形,长551(549-559),宽398(383-435)。螯肢发达,动趾具2齿,定趾的小齿不明显。钳齿毛很大,约与定趾大小相近,长
The present paper deals with 4 new species of Haemolaelaps collected off rodents, from Guizhou Province, China. All the type specimens are deposited in the Department of Parasitology, Guiyang Medical college. 1. Haemolaelaps anourosorecis, sp. nov. Female (figs. 1--3) Idiosoma oval, 551 μ in length, 398 μ in width. Dor- sal plate 541×380 μ, bearing 39 pairs of small setae, without accessory seta. Pilus dentilis rather large, as figured. Sternal plate 71 μ long (in middle), and 172 μ wide (maximum); anterior margin convex in middle, posterior mar- gin concave; 3 pairs of sternal setae subequal in length, St_1 Situated on pre- sternal area; the anterior pair of slit-like pores situated at the anterior mar- gin of the plate. Genitoventral plate elongated, slightly expanded at the pos- terior margin; length 420 μ, width 117μ. Anal plate wider than long, 95×161 μ, with anterior margin concave, lateral angles saddle-like or broadly rounded; the paired setae situated behind the middle of anus, being slightly shorter than the posterior one. Peritreme long, extending anteriorly to the middle of coxa Ⅰ. The naked area of renter behind coxae Ⅳ with about 19 pairs of setae. Male (figs. 4--5) Idiosoma oval, 518×321μ. Dorsal plate almost covered the entire dorsum; bearing 39 pairs of setae, the marginal setae larger than the middle ones. Holoventral plate with 21 setae, St_1 stiuated at the anterior margin of the plate. Spermatodactyl slender and curved, illustrated at figure 5, Deutonymph (fig. 6) Body oval, 461×290μ. Dorsal plate 450×270μ, bearing 39 pairs of small setae. Sternal plate with 3 setal pairs, St_1 situated presternal area. Anal plate as same as the female. The naked area of venter behind eoxae Ⅳ with about 18 setal pairso Holotype (?) , allotype (?) and paratypes (7(?), 2 deutonymphs) were collected off Anourosorez squamipes Milne-Edwards, in Oct. 1976. 2. Haemolaelaps proslhoporus, sp. nov. Female (figs. 7--9) Idiosoma oval, 507×342 μ. Dorsal Plate almost covered the entire dorsum, with 39 pairs of principal setae and 3 accessory setae, all the setae small, but F_2 long and strong, as twice as the length of M_(11). Sternal plate 113 μ long (in middle) and 131 μ wide (maximum), anterior margin convex in middle, posterior margin concave, St_1 situated in the anterior margin of the plate, the anterior pair of slit-like pores arranged trans- versly between St_1. Genitoventral plate 195 μ in length, and 98 μ in width. Anal plate pear-like, 82 × 59 μ; the paired setae situated behind the middle of anus, being shorter than the posterior one. The posteroventral margin of opisthosoma with a pair of characteristic setae, its distal portion heavier than the proximal portion, and with a pit on the tip. Type specimen was collected off Rattus losea Swinhoe, in Oct. 1978. 3. Haemolaelaps sanduensis, sp. nov. Female (figs. 10-13) Idiosoma oval, length 807 μ, width 517 μ. Dorsal plate 744 μ long, 476 μ wide: with 39 pairs of principal setae and a single accessory seta situated betwen D_8. The nonsclerotized portion of dorsum bearing 10 pairs of setae, the posterior 6 pairs slightly feathered. Digitus fixus armed with 4 small teeth, pilus dentilis inflated, the slender terminal portion bent at right angle; a specific circular transparent structure situated be- tween the two digits. Sternal plate 111 μ long (at middle), 156 μ wide (at the narrowest point); anterior margin moderatly convex at middle; posterior margin rather strongly concave; St_1 situated on anterior margin of the plate, being shorter than the other pairs; St_2 longest, its apex beyond the posterior margin of the plate. Genitoventral plate flask-like, 352 μ long, 168 μ wide, obviously wider than the width of anal plate, sculptured as figured. Anal plate triangular, witn round corners, width 131 μ, length 119 μ. Ad situated a little behind the middle of anus, shorter than PA. Peritreme extending ante- riorly to the middle of anus, shanpA. peritreme extendiny anteriorly to the middle of ooxa I. Metapodal plate elongated. Unsclerotized portion behind coxa Ⅳ with 12 pairs of setae, posterior 6 pairs slightly feathered. All legs rather strong, the leg Ⅱ being stouter than theothers. Tarsus Ⅳ without long proximal seta. Holotype was collected off Mus pahari Thomas, in Feb. 1979. 4. Hacmolaelaps suiyangensis, sp. nov. Feinale (figs. 14-16) Body oval, 724 μ in lengtn, 517 μ in width. Dorsal plate 662 × 413 μ, bearing 38 setal pairs, T_2 absent, and without accessory seta. Pilus dentilis spine-like, with rather wide basal portion. Sternal plate 100 μ long (in middle), 209 μ wide (maximum), anterior margin roughly straight, posterior margin weakly concave; St_1 situated on anterior margin of the plate, being shorter than the other pairs; St_2 subequal to St_3, reaching posterior margin of the plate. Genitoventral plate lingulate, 295 μ long, 123 μ wide, sculptured as figured. Anal plate triangular, 107 μ in length, 117 μ in width, the paired setae situated beside the middle of anus, being slightly shorter than the posterior one. peritreme long, extending to the middle of coxa I. Metapodal plate rhabditiform. The naked area of venter behind coxae Ⅳ with 14 pairs of setae, the posterior and marginl ones weakly feathered. Holotype was collected off Apodemus agrarius ningpoensis Pallas, in Oct. 1976.

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作者(Author): 顾以铭;王菊生;
Gu Yi--ming;Wang Chu--sheng Department of Parasitology

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DOI: 10.19367/j.cnki.1000-2707.1980.02.037

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