scholarly journals The remarkable biology of a new species of Gelis Thunberg, 1827 (Ichneumonidae, Phygadeuontinae), a solitary endoparasitoid of fresh eggs of Timarcha (Coleoptera, Chrysomelidae)

2021 ◽  
Vol 82 ◽  
pp. 161-186
Author(s):  
Mark R. Shaw ◽  
Pieter Kan ◽  
Brigitte Kan-van Limburg Stirum ◽  
Martin Schwarz
Keyword(s):  
New Species ◽  
First Record ◽  
Instar Larva ◽  
Caudal Appendage ◽  
Egg Predation ◽  
Host Cytoplasm ◽  
First Instar ◽  
Adult Parasitoid ◽  
Prolonged Diapause ◽  
A New Species

A new species, Gelis timarchae Schwarz, Shaw & Kan, is figured and described from specimens reared as a solitary endoparasitoid of fresh eggs of Timarcha nicaeensis in the south of France. Oviposition behaviour of the adult parasitoid, directly into the host cytoplasm, is described and links to videos are given. This appears to be the first record of any ichneumonid developing as an endoparasitoid of an insect egg, and it is a major departure from hitherto known ectoparasitoid (or spiders’ egg-predation) behaviour in the genus Gelis. Fluid from the host egg issuing from the base of the parasitoid’s ovipositor early in the oviposition process is interpreted as a necessary reduction of hydrostatic pressure before the parasitoid egg can be forced down the ovipositor. The egg and first instar larva are figured; the latter is caudate, with the caudal appendage very unusual in being bifurcate. The complex phenology and diapause of the parasitoid were investigated partly experimentally; it is broadly bivoltine with a prepupal diapause in summer, but extra generations and prolonged diapause were both also seen.

New species of Corotoca Schiødte, 1853 from South America and description of first instar larva

Zootaxa ◽  
2018 ◽  
Vol 4527 (4) ◽  
pp. 521
Author(s):  
BRUNO ZILBERMAN ◽  
SÔNIA A. CASARI
Keyword(s):  
New Species ◽  
South America ◽  
Related Species ◽  
Larval Instar ◽  
First Record ◽  
Instar Larva ◽  
First Instar ◽  
A New Species

Corotoca Schiødte, 1853 is a Neotropical genus of termitophile beetles, with five species. The establishment of this genus marks the first record of insects living associated to termites. A new species, Corotoca pseudomelantho Zilberman, sp. nov. from Brazil and Argentina, based on adult and first larval instar, is described and illustrated. The first instar larva of C. melantho Schiødte, 1853, a related species, is redescribed and illustrated. This is the first record of Corotoca species from Argentina. 

MICROCTONUS STELLERI (HYMENOPTERA: BRACONIDAE, EUPHORINAE), A NEW PARASITE OF THE ALFALFA WEEVIL INTRODUCED INTO THE UNITED STATES

1972 ◽  
Vol 104 (9) ◽  
pp. 1445-1456 ◽  
Author(s):  
J. J. Drea ◽  
R. J. Dysart ◽  
L. W. Coles ◽  
C. C. Loan
Keyword(s):  
United States ◽  
New Species ◽  
Instar Larva ◽  
The United States ◽  
Laboratory Studies ◽  
Alfalfa Weevil ◽  
Hypera Postica ◽  
First Instar ◽  
Parasite Larva ◽  
A New Species

AbstractMicroctonus stelleri Loan is described as a new species. This euphorine braconid occurs in France, Germany, Sweden, and Russia. It is umvoltine and its only known host is the alfalfa weevil, Hypera postica (Gyllenhal). In the spring the mature parasite larva issues from the overwintered adult host and forms a white cocoon in the ground litter. In about 2 weeks the adult parasite emerges, mates, and oviposits in larva of the alfalfa weevil. The parasite egg hatches and the first-instar larva remains within the host until the following spring. In northern France M. stelleri was the dominant parasite in overwintering adults of H. postica. Parasitism ranged from 0 to 13% though it was usually less than 6%. Laboratory studies showed that M. stelleri females live longer, have a higher rate of oviposition, and parasitize more hosts than females of M. colesi Drea, a parasite of the weevil in the United Slates. A technique is described for the recovery of M. stelleri from adult alfalfa weevils. From 1966 to 1970, 4387 parasites were imported from France and released at 24 localities in the United States.

Ripiphorus caboverdianus sp. nov.—the first ripiphorid record from the Macaronesian volcanic islands (Coleaoptera: Ripiphoridae: Ripiphorinae)

Zootaxa ◽  
2011 ◽  
Vol 2792 (1) ◽  
pp. 51 ◽  
Author(s):  
JAN BATELKA ◽  
JAKUB STRAKA
Keyword(s):  
New Species ◽  
Hind Tibia ◽  
First Record ◽  
Ventral Surface ◽  
Instar Larva ◽  
Conservation Implications ◽  
First Instar ◽  
The Family ◽  
Dispersal Abilities ◽  
Volcanic Islands

Ripiphorus caboverdianus sp. nov. (Ripiphoridae, Ripiphorinae) from Boavista Island (Cape Verde archipelago) represents the first record of the family Ripiphoridae from the volcanic islands west of Africa and the first record of the genus Ripiphorus on an isolated volcanic archipelago worldwide. Its significance for our understanding of oceanic dispersal abilities of the subfamily Ripiphorinae is discussed. The new species is characterized by milky white elytra, hyaline hind wings and translucent membranous suture between dorsal and ventral surface of the first abdominal segments in both sexes. Female has a slightly curved hind tibia, 2× wider at the apex than at its base, and a slender, parallel-sided first metatarsomere, 5× as long as wide. Morphology of the free-living first instar larva is described; it is very similar to R. smithi Linsley & MacSwain, 1950. Behavioral observations of the adults and the first instar larvae in the type locality are given. Known hosts of the genus Ripiphorus are reviewed; possible host-association and conservation implications for the new species are discussed.

A NEW SPECIES OF TRICHOTHAUMALEA (DIPTERA: THAUMALEIDAE) FROM EASTERN NORTH AMERICA AND A DISCUSSION OF MALE GENITALIC HOMOLOGIES

1992 ◽  
Vol 124 (3) ◽  
pp. 491-499 ◽  
Author(s):  
Bradley J. Sinclair
Keyword(s):  
New Species ◽  
North America ◽  
Reproductive System ◽  
First Record ◽  
Instar Larva ◽  
Male Reproductive System ◽  
Eastern North America ◽  
Immature Stages ◽  
Phylogenetic Implications ◽  
A New Species

AbstractThe adult, pupa, and final-instar larva of Trichothaumalea elakalensis sp.nov. (Diptera: Thaumaleidae) are described and illustrated. This is the first record of this genus from eastern North America and first description of the immature stages. In addition, reinterpretation of the homologies of the male terminalia and preliminary observations on the male reproductive system of Thaumaleidae are presented and the phylogenetic implications upon the monophyly of the Chironomoidea are discussed.

BIOSYSTEMATICS OF THE TINGID PARASITE HOLDAWAYELLA IN ONTARIO (HYMENOPTERA: BRACONIDAE, EUPHORINAE)

1971 ◽  
Vol 103 (9) ◽  
pp. 1273-1284 ◽  
Author(s):  
C. C. Loan ◽  
G. H. Gerber ◽  
D. G. Reid
Keyword(s):  
New Species ◽  
Field Data ◽  
Instar Larva ◽  
Insect Larvae ◽  
New Host ◽  
First Instar ◽  
Late Instar ◽  
A New Species ◽  
New Host Records

AbstractHoldawayella juglandis Loan, a new species, and some aspects of the anatomy of the final-instar larva of the only other known species of this genus, H. tingiphaga Loan, are described. Host records and field data are reported for both species for Ontario. Though the adults of the two species are very similar morphologically, H. juglandis lacks parthenogenesis, is restricted to the tingid Corythucha juglandis Fitch that breeds only on species of Juglans L., and has specific phenological characteristics. In both species, the head sclerites of the final-instar larva are typically euphorine, and the abdomen bears 3 unpaired, medial, teat-like appendages on segments 5, 6, and 7 whose function is unknown and which do not seem to have homologues in other insect larvae. Both species are single-brooded, lay their eggs in late-instar nymphs and possibly also teneral adults of Corythucha, overwinter as first-instar larvae in adults of these tingids, and complete their endoparasitic and cocoon development in about 90 days during the following spring and summer so that adults of H. tingiphaga begin to emerge from the soil about mid-July and those of H. juglandis about 8 days later. New host records for H. tingiphaga are C. coryli O. & D., C. heidmanni Drake, and C. ulmi O. & D.

A new species of the genus Cylindratus Meng, Qin et Wang, 2020 from northern Vietnam, with first description of 5th instar larva and a key to Vietnamese Caliscelini (Hemiptera: Fulgoromorpha: Caliscelidae)

Zootaxa ◽  
2021 ◽  
Vol 4985 (4) ◽  
Author(s):  
VLADIMIR M. GNEZDILOV
Keyword(s):  
New Species ◽  
First Record ◽  
Instar Larva ◽  
Northern Vietnam ◽  
Lao Cai ◽  
First Time ◽  
A New Species

Cylindratus fansipan sp. nov. is described from Lao Cai Province of Northern Vietnam. It is the first record of the genus Cylindratus Meng, Qin et Wang, 2020 from Vietnam and the fourth genus of the subfamily Caliscelinae known from the country. A 5th instar larva of the genus Cylindratus is described and illustrated for the first time. A key to the Vietnamese Caliscelini is given.

scholarly journals First record of a nonpaleotropical intejocerid cephalopod from Darriwilian (Middle Ordovician) strata of central Spain

2019 ◽  
Vol 94 (2) ◽  
pp. 273-278
Author(s):  
Björn Kröger ◽  
Juan Carlos Gutiérrez-Marco
Keyword(s):  
United States ◽  
New Species ◽  
New Genus ◽  
First Record ◽  
The United States ◽  
Central Spain ◽  
Middle Ordovician ◽  
A New Species

AbstractThe order Intejocerida is an enigmatic, short-lived cephalopod taxon known previously only from Early–Middle Ordovician beds of Siberia and the United States. Here we report a new genus, Cabaneroceras, and a new species, C. aznari, from Middle Ordovician strata of central Spain. This finding widens the paleogeographic range of the order toward high-paleolatitudinal areas of peri-Gondwana. A curved conch, characteristic for the new genus, was previously unknown from members of the Intejocerida.UUID: http://zoobank.org/21f0a09c-5265-4d29-824b-6b105d36b791

A new species of the genus Odorrana (Amphibia: Ranidae) and the first record of Odorrana bacboensis from China

Zootaxa ◽  
2015 ◽  
Vol 3999 (2) ◽  
pp. 235 ◽  
Author(s):  
YING-YONG WANG ◽  
MICHAEL WAI-NENG LAU ◽  
JIAN-HUAN YANG ◽  
GUO-LING CHEN ◽  
ZU-YAO LIU ◽  
...  
Keyword(s):  
New Species ◽  
First Record ◽  
A New Species
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