New species and records of North American Hydroptilidae (Trichoptera).
New species and records of North American Hydroptilidae (Trichoptera).
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DOI：
10.1155/1947/35703
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发表时间：
1947-01-01
期刊：
影响因子：
--
通讯作者：
Denning, D. G.
中科院分区：
文献类型：
--
作者：
Denning, D. G.
172 Psyche st. the mdeagus，mdeagus内部硬化管的终末分叉状况以及男性生殖器的其他几个细节。Male.--长度3.2 mm。无花果的生殖器1、1A和1B。第七胸骨小的中部突起，锐尖。第八节的侧裂片形成三角形突起，具大量刚毛，背侧深切;该裂片的背侧和中部出现一个长的衰减突起，逐渐指向腹侧，没有刚毛。大多数第九节撤回到第八节，尾侧角不规则，明显的抱茎器突出尾侧（和在副型中稍背侧）超过生殖器的剩余部分，纤细，近尖，上部着生几分钟的刚毛。从腹面看，图1B，抱茎纤细，分叉中生，被一凹锯齿腹面片分开。第10第三节重度硬化，除一小部分外均隐藏在第九段中;从侧面看，它呈倒U形结构，尾部有分支指状;从腹侧看，图1B，顶端截形，几乎与介子接触，基部弓形。Zedeagus基部宽，螺旋状的花丝环绕筒部一次，细长，沿筒部沿着侧近先端延伸;顶端部分分为两个半膜质突起，短的一个有一个大的刺和两个小的刺，长的一个有一个大的刺;靠近基部，内部硬化的筒部在一个小的半膜质突起上分叉。tolotype，male.--圣保罗，明尼苏达州，1934年8月1日，光陷阱（AA格拉诺夫斯基）。副型，男性。Anoka公司，根据罗斯和作者的记录，该种至少在美国东半部广泛分布。V [ESO：A：圣保罗，灯光陷阱，1934年8月1日，4男，3女; 1935年7月14日，2男; 1935年6月20日，1男（AA Granovsky）。
172 Psyche st. the mdeagus, the terminally forked condition of the internal sclerotized tube of the mdeagus and several other details of the male genitalia. Male.--Length 3.2 ram. Genitalia as in figs. 1, 1A, and lB. Mesal projection of seventh sternite small, acute. Lateral lobes of eighth segment produced into a tri-angular process, heavily setose, deeply incised dorsally; dorsad and mesad to this lobe appears a long attenuated process, directed gradually ventrad, bearing no setm. Most of ninth segment withdrawn into eighth, caudo-lateral corner irregular, apparent claspers projected caudad (and slightly dorsad in paratype) beyond re-mainder of genitalia, slender, subacute, bearing a few minute setm distally. Viewed from ventral aspect, fig. 1B, claspers slender, diverging mesad, separated by a concave serrate ventral plate. Tenth tergite heavily sclerotized, all but a small portion hidden in ninth seg-ment; when seen from lateral aspect it appears as a some-what inverted U-shaped structure, caudad branch digi-tate; viewed ventrally, fig. 1B, apices truncate, almost touching on meson, base arcuate. ZEdeagus with base wide, spiral filament encircles tube once, longand slender, extending along side of tube nearly to apex; apical por-tion divided into two prominentsemi-membranous proc-esses, theshorter one bearing a large and two smaller spines, the longer one bearing a single large spine; near their base the internal sclerotized tube terminates asa fork in a small semi-membranous process. ttolotype, male.--St. Paul, Minnesota, August 1, 1934, light trap (AA Granovsky). Paratype, male.--Anoka Co., Minnesota, July, 1939 (DG Denning)(specimen damaged).Orthotrichia americana Banks Records of Ross and the writer indicate that this spe-cies is widely distributed at least through the eastern half of United States. V [ESO: A: St. Paul, light trap, August 1, 1934, 4 male, 3 female; July 14, 1935, 2 male; June 20, 1935, 1 male (AA Granovsky).