Gapon Dmitry A, Kuznetsova Valentina G, Maryańska-Nadachowska Anna
Zoological Institute, Russian Academy of Sciences, 1 Universitetskaya Emb., St Petersburg 199034, Russia Zoological Institute, Russian Academy of Sciences St Petersburg Russia.
Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Sławkowska 17, 31-016 Kraków, Poland Institute of Systematics and Evolution of Animals, Polish Academy of Sciences Kraków Poland.
Comp Cytogenet. 2021 Dec 15;15(4):467-505. doi: 10.3897/CompCytogen.v15.i4.78718. eCollection 2021.
A new species, (Heteroptera: Reduviidae: Harpactorinae: Rhaphidosomatini), is described from the Dry Zone of Myanmar. It is the fifth species of Amyot et Serville, 1843, known from the Oriental Region, and the first record of the genus for Myanmar and Indochina. The structure of the external and internal terminalia of the male and female is described and illustrated in detail. The completely inflated endosoma is described for the first time in reduviids. The complex structure of the ductus seminis is shown; it terminates with a voluminous seminal chamber which opens with a wide secondary gonopore and may be a place where spermatophores are formed. The new species is compared with all congeners from the Oriental Region and Western Asia. It is characterised by the absence of distinct tubercles on the abdominal tergites of the male, the presence only two long tubercles and small rounded ones on the abdominal tergites VII and VI, respectively, in the female, the presence of short fore wing vestiges which are completely hidden under longer fore wing vestiges, and other characters. In addition to the morphological description, an account is given of the male karyotype and the structure of testes of and another species of Harpactorinae, Stål, 1859 (tribe Harpactorini). It was found that has a karyotype comprising 12 pairs of autosomes and a multiple sex chromosome system (2n♂=24A+XXXY), whereas has a karyotype comprising five pairs of autosomes and a simple sex chromosome system (2n♂=10A+XY). The males of these species were found to have seven and nine follicles per testis, respectively. FISH mapping of ribosomal DNA (major ) revealed hybridisation signals on two of the four sex chromosomes (Y and one of the Xs) in and on the largest pair of autosomes in . The presence of the canonical "insect" (TTAGG) telomeric repeat was detected in the chromosomes of both species. This is the first application of FISH in the tribe Raphidosomatini and in the genus Stål, 1858.
一种新物种（半翅目：猎蝽科：姬猎蝽亚科：针猎蝽族），由缅甸干旱地区描述而来。它是1843年艾米奥和塞尔维所描述的、已知分布于东洋区的第五个物种，也是缅甸和印度支那地区该属的首次记录。详细描述并图示了该物种雄性和雌性的外部及内部生殖器结构。首次描述了猎蝽科昆虫中完全膨胀的内阳茎。展示了输精管的复杂结构；它终止于一个巨大的精囊，精囊通过一个宽阔的次生生殖孔开口，可能是形成精包的地方。将该新物种与东洋区和西亚的所有同属物种进行了比较。其特征包括雄性腹部背板无明显瘤突，雌性腹部背板第七节和第六节分别仅有两个长瘤突和小圆形瘤突，前翅短残迹完全隐藏在较长的前翅残迹之下，以及其他特征。除形态描述外，还给出了该物种以及姬猎蝽亚科另一个物种（1859年斯塔尔描述，猎蝽族）雄性的核型和睾丸结构。发现该物种核型包含12对常染色体和一个多性染色体系统（2n♂=24A+XXXY），而另一个物种核型包含5对常染色体和一个简单性染色体系统（2n♂=10A+XY）。发现这两个物种的雄性睾丸分别有7个和9个卵泡。对核糖体DNA（主要是）的荧光原位杂交图谱显示，在该物种的四条性染色体中的两条（Y和一条X）上有杂交信号，而在另一个物种的最大一对常染色体上有杂交信号。在两个物种的染色体中均检测到典型的“昆虫”（TTAGG）端粒重复序列。这是荧光原位杂交在针猎蝽族和1858年斯塔尔描述的属中的首次应用。
