scholarly journals The Genus Thoron Haliday (Hymenoptera: Scelionidae), Egg-Parasitoids of Waterscorpions (Hemiptera: Nepidae), with Key to World Species

2004 ◽  
Vol 3452 ◽  
pp. 1-16 ◽  
Author(s):  
NORMAN F. JOHNSON ◽  
LUBOMIR MASNER
2004 ◽  
Vol 136 (1) ◽  
pp. 43-60 ◽  
Author(s):  
Mahmood Iranpour ◽  
Terry D. Galloway

AbstractThree new species of Tabanidae egg parasitoids are described: Telenomus hybomitraesp. nov. and Telenomus utilissp. nov., both reared from eggs of Hybomitra nitidifrons nuda (McDunnough) and Hybomitra lasiophthalma Macquart, and Telenomus chrysopsissp. nov., reared from eggs of Chrysops aestuans Wulp, Chrysops excitans Walker, and Chrysops mitis Osten Sacken. Specimens of these species were compared with type specimens of known New World species of scelionid parasitoids attacking tabanid eggs. Diagnostic characters and identification key to the Nearctic species are provided.


Zootaxa ◽  
2019 ◽  
Vol 4554 (2) ◽  
pp. 497 ◽  
Author(s):  
YU-QING ZHANG ◽  
LI-ZHEN LI ◽  
ZI-WEI YIN

The diversity of the ‘Pselaphodes complex’ of genera from Asia remains fragmentally documented. Herein we describe fifteen new species of the genus Labomimus Sharp from China: L. assingi sp. nov. and L. dilatatus sp. nov. from Shaanxi, L. longnan sp. nov. and L. minshanus sp. nov. from Gansu, L. chouwenii sp. nov. from Taiwan, L. yue sp. nov. from Guangdong, L. howaichuni sp. nov. from Hong Kong, L. jinfomontis sp. nov. from Chongqing, L. niger sp. nov. from Sichuan, L. maolan sp. nov. from Guizhou, L. corpulentus sp. nov., L. dulongensis sp. nov., and L. wuchaoi sp. nov. from Yunnan, and L. medogensis sp. nov. and L. qiujianyuae sp. nov. from Xizang. A little known species, L. torticornis (Champion), originally described from Assam, northeastern India, is newly recorded in Yunnan, southwestern China. Illustrations of the habitus and major diagnostic characters of all treated species are provided. A checklist and a distributional map of world species are given. 


2004 ◽  
Vol 136 (6) ◽  
pp. 781-791 ◽  
Author(s):  
Stéphanie Boucher

AbstractThe New World species of Pseudonapomyza Hendel are reviewed. Only two species of the genus were previously known to occur in the Nearctic region: P. atra (Meigen) and P. lacteipennis (Malloch). Pseudonapomyza europaea Spencer and P. asiatica Spencer are here recorded for the first time in the Nearctic region and P. asiatica is recorded for the first time in Costa Rica and Venezuela. A key is provided to identify the four known New World species of Pseudonapomyza.


Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 787
Author(s):  
Giuseppino Sabbatini-Peverieri ◽  
Christine Dieckhoff ◽  
Lucrezia Giovannini ◽  
Leonardo Marianelli ◽  
Pio Federico Roversi ◽  
...  

Halyomorpha halys is a severe agricultural pest of Asian origin that has invaded many countries throughout the world. Pesticides are currently the favored control methods, but as a consequence of their frequent use, often disrupt Integrated Pest Management. Biological control with egg parasitoids is seen as the most promising control method over the long-term. Knowledge of the reproductive biology under laboratory conditions of the most effective candidates (Trissolcus japonicus and Trissolcus mitsukurii) for optimizing production for field releases is strongly needed. Rearing of these egg parasitoids was tested by offering three different host supply regimes using new emerged females and aged, host-deprived females in different combinations. Results showed a mean progeny per female ranging from 80 to 85 specimens for T. japonicus and from 63 to 83 for T. mitsukurii. Sex ratios were strongly female biased in all combinations and emergence rates exceeded 94% overall. Cumulative curves showed that longer parasitization periods beyond 10–14 days (under the adopted rearing regimes) will not lead to a significantly increase in progeny production. However, ageing females accumulate eggs in their ovaries that can be quickly laid if a sufficient number of host eggs are supplied, thus optimizing host resources. Our data showed that offering H. halys egg masses to host-deprived female Trissolcus once a week for three weeks allowed its eggs to accumulate in the ovary, providing the greatest number of offspring within a three week span.


Zootaxa ◽  
2012 ◽  
Vol 3361 (1) ◽  
pp. 18-32
Author(s):  
XIAOYAN LIU ◽  
DING YANG
Keyword(s):  

A review of the species of the genus Centorisoma Becker from China is provided. The following 5 species are described as newto science: C. divisum sp. nov., C. gansuensis sp. nov., C. helanshanensis sp. nov., C. scutatum sp. nov. and C. shaanxiensis sp. nov. A key to the world species of genus Centorisoma is given.


2012 ◽  
Vol 93 (5) ◽  
pp. 1329-1333
Author(s):  
Débora Lucatelli ◽  
Shane T. Ahyong ◽  
Luis Ernesto Arruda Bezerra ◽  
Paulo Jorge Parreira Dos Santos

A new species of eurysquilloid stomatopod,Eurysquilla petronioisp. nov., is described from the tropical western Atlantic.Eurysquilla petronioisp. nov. is the fourteenth species of the genus to be recognized worldwide, the fifth species from the western Atlantic and the second from Brazilian waters. It is most closely related toE. maiaguesensisfrom Puerto Rico, but differs chiefly in having an unarmed versus apically spinous rostral plate and 6 or 7 rather than 8–10 teeth on dactylus of raptorial claw. A key to the species of the genus is provided.


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