Larval and pupal descriptions for the genera Podischnus and Heterogomphus (Scarabaeidae: Dynastinae: Oryctini)

Zootaxa ◽  
2009 ◽  
Vol 2168 (1) ◽  
pp. 34-44 ◽  
Author(s):  
JHON CÉSAR NEITA MORENO ◽  
JESÚS OROZCO

The larva and pupa of Heterogomphus dilaticollis Burmeister and Podischnus agenor (Olivier) (Scarabaeidae: Dynastinae: Oryctini) are described for the first time based on specimens from Colombia. Podischnus agenor is the first species in the genus to have its immature stages described. Keys to the third-instar larvae of genera in the tribe Oryctini and species of Heterogomphus are included. Data on larval natural history for both species are provided.

Zootaxa ◽  
2021 ◽  
Vol 5047 (2) ◽  
pp. 153-164
Author(s):  
ANDREY V. FROLOV ◽  
MARIA S. VISHNEVSKAYA ◽  
LILIA A. AKHMETOVA

The third instar larvae of Aphodius (Alocoderus) hydrochaeris (Fabricius, 1798) and A. (Bodilus) ictericus (Laicharting, 1781) are described based on scanning electron microscopy and COI sequences. COI barcode sequence for A. (A.) hydrohaeris is provided for the first time. Two haplotypes are discovered in A. (B.) ictericus.  


Zootaxa ◽  
2011 ◽  
Vol 2915 (1) ◽  
pp. 20 ◽  
Author(s):  
JHON CÉSAR NEITA MORENO ◽  
BRETT C. RATCLIFFE

The larva and pupa of Homophileurus tricuspis Prell (Coleoptera: Scarabaeidae: Dynastinae: Phileurini) are described for the first time based on specimens from Colombia. A key to the known third-stage larvae of New World Phileurini species is provided. Notes on the natural history and distribution of H. tricuspis in Colombia are also included.


Author(s):  
Rafael Clayton De Jesus e Sousa ◽  
Juares Fuhrmann

Studies about the immature stages of Orphninae (Coleoptera: Scarabaeidae) species are scarce. The subfamily includes 214 species, but only 5 have the immature stages described: Chaetonyx robustus liguricus Mariani, 1946, Hybalus benoiti Tournier, 1864, H. rotroui Petrovitz, 1964 and Triodontus nitidulus (Guérin, 1844) from Old World; and Aegidium cribratum Bates, 1887 from the New World. The Neotropical genus Paraegidium Vulcano, Pereira & Martinez, 1966 encompass five species, mainly recorded from Brazil. Herein, the immature stages of P. costalimai Vulcano, Pereira & Martinez, 1966 are described and illustrated, along with remarks on the presence of egg-buster in Scarabaeidae first-instar larvae. A key to the third-instar larvae of known Orphninae and a comparative study of chaetotaxy are also provided.


Zootaxa ◽  
2017 ◽  
Vol 4243 (3) ◽  
pp. 521
Author(s):  
FABIANO F. ALBERTONI ◽  
SÔNIA A. CASARI

The natural history of Acentroptera basilica Guérin-Méneville, 1844 and A. cf. tessellata Baly, 1958 (Cassidinae: Sceloenoplini) associated with Aechmea aquilega Salisb. and Vriesea sp. (Bromeliaceae), respectively, is registered. Adults of both species are leaf scrapers, although larvae are leaf-miners. The immature stages of both species of Acentroptera are described and illustrated for the first time. The male and the female genitalia of A. basilica and new records for both species are also included. 


1986 ◽  
Vol 76 (3) ◽  
pp. 433-446 ◽  
Author(s):  
Penelope B. Edwards

AbstractThe biology and development of immature stages of summer (SR) and winter rainfall (WR) strains of Onitis caffer Boheman were studied in South Africa in a summer rainfall area (Pretoria). A pair of adult beetles buried up to 650 ml of dung from one dung pad, and females laid an average of 1 egg for every 62 ml of dung buried. Broods were buried at an average depth of 50 cm in watered soil and 24 cm in unwatered soil. Eggs laid in June (winter) hatched 10 weeks later. The third instar was reached by late October. WR larvae suffered higher mortality (82%) with the onset of summer rains than did SR larvae (53%). By the following June, 6% of surviving WR individuals had emerged as adults, 12% were adults in faecal shells and 82% were diapausing third-instar larvae. Of the SR individuals, 67% emerged by June and 33% were diapausing third-instar larvae. In a second experiment, two groups of broods of the SR strain of O. caffer of different ages were set out in the field in June. One group, equivalent to broods produced early in the season (March), entered diapause as third-instar larvae, and adults emerged the following autumn. The second group represented broods produced later in the season (May); the majority did not diapause, but adults also emerged the following autumn. A field population of SR adults of O. caffer was sampled for two years. Adults were first recorded at the end of February (late summer), and newly-emerged specimens were caught up until the end of April. Maximum numbers were recorded in late March to early April (autumn), and activity ceased in June-July (winter).


Zootaxa ◽  
2019 ◽  
Vol 4544 (3) ◽  
pp. 381 ◽  
Author(s):  
CESAR J. BENETTI ◽  
MARIANO C. MICHAT ◽  
YVES ALARIE ◽  
NEUSA HAMADA

The second- and third instar larvae of Platynectes (s. str.) decemnotatus (Aubé, 1838) are described and illustrated in detail for the first time, with special emphasis on morphometry and chaetotaxy. Larvae of P. decemnotatus can be distinguished from most other Agabinae by having secondary setae on the urogomphus and share with the other known species described in detail the presence of a ventroapical spinula on antennomere 3 and the absence of an occipital suture, natatory dorsal setae on tibia and tarsus and natatory setae on urogomphus. Platynectes decemnotatus larvae differ from larvae of Agabus Leach, 1817, Hydrotrupes Sharp, 1882 (currently in Hydrotrupini), Ilybiosoma Crotch, 1873, Ilybius Erichson, 1832 and the previously described Platynectes species in having a one-segmented urogomphus, a character previously observed only in larvae of Agabinus Crotch, 1873. The second- and third instar larvae of P. decemnotatus differ from those of P. (Agametrus) curtulus (Régimbart, 1899) in having the apical lateroventral process of antennomere 3 protruding (not protruding in P. curtulus). The third-instar larva of P. decemnotatus can also be distinguished from that of P. (Gueorguievtes) decempunctatus (Fabricius, 1775) by the absence of secondary dorsal setae on the tibia. 


Zootaxa ◽  
2007 ◽  
Vol 1503 (1) ◽  
pp. 1-11 ◽  
Author(s):  
EDUARDO GONÇALVES PATERSON FOX ◽  
DANIEL RUSS SOLIS ◽  
CARLOS MASSURETTI DE JESUS ◽  
ODAIR CORREA BUENO ◽  
ANTONIO TENIYOSHI YABUKI ◽  
...  

The ant Paratrechina longicornis is a cosmopolitan ant species that has been accidentally spread by commerce around the world, and now is a pest of houses and hospitals. The morphology of its larval stages has been previously described without knowledge of the number of instars. The present study revisits the original description of P. longicornis larvae by adding differences observed among the three larval instars. Compared to other Paratrechina species studied so far, P. longicornis presents smaller larvae, less evident variation in mandible morphology, and clear variation in the morphology of head hairs between the analysed specimens of the second and third instar larvae. Ultrastructural images of the eggs, larval spiracle ornamentation, and pupae are also presented for the first time.


Zootaxa ◽  
2021 ◽  
Vol 4915 (2) ◽  
pp. 255-263
Author(s):  
J. POORANI ◽  
C. ANURADHA ◽  
R. THANIGAIRAJ

Protoplotina ambigua sp. n. (Coccinellidae: Plotinini) from the southern Indian state of Tamil Nadu is described and illustrated. This is the third species of the genus reported from India. Immature stages of the genus Protoplotina are briefly described and illustrated for the first time with notes on host association. A revised key to the known species of the genus is also included. 


Zootaxa ◽  
2009 ◽  
Vol 2189 (1) ◽  
pp. 1-218 ◽  
Author(s):  
RICHARD E. PETIT

Several members of the Sowerby family were artists and authors of natural history works in the 19 th Century. Three of them, George Brettingham Sowerby, his son, and his grandson (I, II & III respectively) are especially known for their molluscan publications. The first to bear the name is best known for his Genera of recent and fossil shells and for initiating the Thesaurus Conchyliorum, the latter work being finished by his son and grandson. He was also primarilyresponsible for the Conchological Illustrations for which his son produced the plates and several monographs. In addition to the Illustrations and much of the Thesaurus, G. B. Sowerby II is known for his Manual of Conchology and for the final volumes of Reeve’s Conchologia Iconica. The third generation of this line finished the Thesaurus and published an enlarged edition of his father’s Illustrated Index of British Shells. He published numerous papers in journals and is best known for a series of papers on mollusks of South Africa. Complete molluscan bibliographies for all three G. B. Sowerbys are compiled and collated and a list of their molluscan taxa is here given for the first time.


Parasitology ◽  
1954 ◽  
Vol 44 (1-2) ◽  
pp. 111-119 ◽  
Author(s):  
P. Tate

1. The feeding habits of second- and third-instar larvae of Neottiophilum praeustum have been observed and show that this species is a true parasite of birds and feeds by sucking the blood of nestlings.2. If they are too numerous the larvae may kill the nestlings. Although they will continue to feed upon dead birds, and even penetrate into the viscera, such food is unsuitable for the development of the larvae and they become greatly distended and die within a few days.3. The morphology of the hitherto unknown second-instar larva is described and is compared with that of the third instar.4. Within the puparium of Neottiophilum praeustum there is a fourth moult resulting in the formation of a cast prepupal cuticle which resembles that described by Snodgrass in Rhagoletis pomonella and is much better developed than the prepupal cuticle in Calliphora erythrocephala.5. The better development of the prepupal cuticle in the acalypterates than in calypterates indicates that the presence of a prepupal stage in the cyclorrhaphous Diptera is a primitive character and is progressively reduced until in the higher families it is almost vestigial.


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