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Larvae and pupae of Macropeza albitarsis MEIGEN, 1818 are described and illustrated for the first time. Aquatic larvae with a paddle-like anal segment armed with dorsal and ventral broom hairs are good swimmers. Within the family, larvae of the genus Macropeza MEIGEN, 1818 are unique in having broom hairs on the anal segment and a pair of multiple setae p on the head.
Agonurn (Sericoda) quadripunctatum (De Geek) is a pyropliilous beetle tliat occurs only at sites where forest or peat has been burnt. Adults of this species are certainly attracted to various fires, probably by the smell of smoke from distant places, and stay on a conflagration sites for a short period only. The immature stages of A. (S.) quadripunctatum are described and figured for the first time.
The paper describes and illustrates the morphology of all preimaginal stages for Ocypus fulvipennis Erichson, 1840 including a detailed account of chaetotaxy. Diagnostic characters of egg, larva and pupa of this species are given. Morphological differences between the first (L₁) and mature (L₃) larval instars cover: chaetotaxy of head, profemur, protibia, tarsungulus, abdominal tergites, paratergites, sternites, parasternites and urogomphi; structure of antenna, maxillae and urogomphi; microstructure of abdominal tergites, proportions of the body parts, body colour and habitus. Some data on its distribution and biology in the field and laboratory conditions are also provided. All immature stages of O. fulvipennis were compared with those of other members of this genus. Instead of size, following distinguishing characters are provided for respective stages: egg - tubercle simple, without projection and equatorial band medium in width; larvae (L₃) - teeth of nasale very sharp and well marked, apotome with sharply pointed apex, segment II of labial palp about 2.4 times longer than segment III; pupa - 12 setiform projections on pronotum, antennae distinctly protruding beyond apex of middle tibia, hind legs reaching ⅔ of length of 4th morphological segment.
Egg, first and second instar larvae of Lymexylon navale (Linnaeus, 1758) are described.
Three larval instars of Nearctic Agathidium angulare Mannerheim, 1852, are described in detail and the first and third stage larvae are figured for the first time; morphology of the stages was analyzed and compared, with special emphasis on measurements, chaetotaxy and porotaxy of head, mouthparts, thorax, abdomen, leg and urogomphi. Preliminary discussion on larval characters of the genus Agathidium is provided.
A description of the last larval instar (based on exuviae) of Globicornis (Hadrotoma) emarginata (Gyllenhal, 1808) (Coleoptera: Dermestidae) is presented. Morphological characters of Globicornis larvae are characterized and discussed, including antenna, epipharynx, mandihula, maxilla, ligula with labial palpi, hastiseta, spiciseta, legs, terga, and condition of the antecostal suture. Structural differences of mature larvae of the following Globicornis species are compared and summarized: Globicornis (Hadrotoma) corticalis (Eichhoff, 1863), Globicornis (Hadrotoma) emarginata (Gyllenhal, 1808) and Globicornis (Globicornis) nigripes (Fabricius, 1792).
The pupae of Alepia montana Bravo, Alepia truncata Bravo, Lago et Castro and Psychoda simillima Tonnoir, belonging to the subfamily Psychodinae, are described and illustrated. The pupae of A. montana and A. truncata were collected in tree holes in the city of San Ramón de la Nueva Orán, Province of Salta and the pupa of P. simillima in small pool on the nameless stream near El Hoyo city, Province of Chubut, Argentina. The pupa of P. simillima is similar to other pupae of the genus Psychoda Latreille, being distinguished by some features in the last segment and by respiratory trumpet. These are the first pupae described of any species of the genus Alepia Enderlein.
Larva and pupa of Sibinia pellucens are described in detail. The larvae were collected from fruits of Melandrium album (Caryophyllaceae); some larvae were reared till pupation.
The immature stages of the 11 species of the genus Anomalipus Latreille, 1846 were presented on base of the material preserved in the Transvaal Museum in Pretoria (33 eggs and 152 larvae). The materials were collected in the natural conditions (larvae with adults association) or came from the beetles-breeding. The following larval characters distinguished the genus Anomalipus: (1) the presence of subdivided sensorium surrounding the base of the apical antennomere; (2) the epicranial plate of head and lateral part of prothorax possess deep holes (modified into sensory-capsules); (3) anal segment smooth, conical, with ninth sternum extremely reduced. The results of the presented studies are not confirmed Schultzes (1978) informations of antennal structures and divisions of the Anomalipus species based on the adults (Endrödy-Younga 1988). The high level of homogenous larval structures of the Anomalipus make its useless for species describing and grouping.
The first descriptions of immature stages for the genus Megischyrus Crotch are provided. Descriptions are given for the final larval instar of Megischyrus discipennis Lacordaire and a Megischyrus species tentatively identified as M. nicaraguae Crotch. The egg of M. discipennis is briefly characterized. The descriptive literature on larval Erotylidae is reviewed.
This is the first detailed description of the mature larva of Anisotoma discolor Melsheimer, 1844, a Nearctic member of the tribe Agathidiini. The setal pattern of cephalic capsule, mouthparts, legs, urogomphi, thoracic and abdominal segments are described and figured, and the measurements are given.
Forcipomyia sahariensis Kieffer, 1923 is diagnosed in all stages. Larvae and pupae reared from rotting roots are described for the first time. Forcipomyia tuzeti Huttel et Huttel, 1952 from France and F. acanthophora Remm in Havelka, 1976 from Germany are recognized as new junior synonyms of F. sahariensis. A supplemented key for identification of known larvae and pupae of Polish species of the subgenus Forcipomyia s. str. is also provided.
The egg case and larvae of all three instars of the cascade beetle Tritonus complanatus Short, 2008 (Coleoptera: Hydrophilidae) are described based on specimens found co-occurring with adults and associated with them by comparing histone 3 nDNA sequences. The morphology of the larva is congruent with the phylogenetic position of Tritonus Mulsant, 1844 in the Paracymus-group of the Laccobiini, but also exhibits characters shared with larvae of Hydrobiusini, and some presumed adaptations to the hygropetric life style. The larva has open mesothoracic and abdominal spiracles situated on top of long spiracular tubes in the first instar, likely working as ‘spiracular snorkels’, and on low tubercles in later instars, along with a well-developed spiracular atrium. Similar spiracular morphology was found in the larva of the terrestrial laccobiine genus Tormus Sharp, 1884, and a brief examination of larvae of few other genera (Oocyclus Sharp, 1882, Hydrobius Leach, 1815) reveals that the peripneustic spiracular system (mesothoracic plus 8 abdominal functioning spiracles) may be more widespread in larval Hydrophilidae than currently believed.
The immature stages of Rugilus rufipes Germar are described and illustrated. Descriptions are based on material collected in the deciduous forest litter in northern Poland (Niedwiady Forest District), and reared in the laboratory. The life-cycle and notes on biology of the species are also provided.
Some immatures stages of the baridiae tribe Madarini are described. The larvae and pupae of four genera are described for the first time based upon the following species: Athesapeuta cyperi Marshall. Madarellus undulatus (Say), Onychobaris ambigua Casey, and Orchidophilus sp. For each species important structural features of the larva and pupa are illustrated. Biological information and host associations for each of these genera are summarized. Previous work on the immature stages of Madarini is briefly reviewed. The tribe is characterized by a larval feature, the basally fused labral rods. Two genera usually placed in the Madarini, Ampeloglypter LeConte and Parisoschoenus Faust, lack this putative larval apomorphy and may belong to other tribes of the Baridinae.
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