Hydroscapha redfordi Maier, Ivie, Johnson, and Maddison, new species, is described from a hot spring in northern Idaho. This new record extends the range of the genus in North America, and marks a new northern-most limit for the family worldwide. Hydroscapha redfordi is distinguished from Hydroscapha natans LeConte by both morphological characters and characters of two genes: the mitochondrial gene cytochrome oxidase I and the nuclear gene for 28S ribosomal RNA. Previous species concepts of H. natans are reviewed, and several populations inhabiting hot springs in Idaho and Nevada are now hypothesized to be independent species, leading to a prediction of many undescribed species remaining to be discovered.

Monolepta meihuai Lee, Tian, and Staines, new species, is described and its sibling species, Monolepta mandibularisChûjô, 1962, is redescribed. Male and female reproductive systems are illustrated in detail. The species are distinct biologically by their host associations and times of adult appearance.

A series of field studies examined the effectiveness of using a grass blade/stem to extract tiger beetle larvae (Coleoptera: Carabidae: Cicindelinae) from their burrows without damaging the larva or the burrow — a procedure often called fishing. We found that larvae of many species can be efficiently sampled at rates equal to or exceeding other methods. Extracted larvae have a low percentage of injury and can be assessed for parasitism and condition. They can be returned to either their own burrow or an alternative burrow where they can be re-sampled. The results of these studies indicate that fishing for tiger beetle larvae can be an effective tool for monitoring populations where larvae can be returned to existing burrows. In addition, the fishing technique allows for relocation of organisms while eliminating the impacts associated with excavating threatened species or larvae from rare habitats.

Symptoms of wood boring activity and Cerambycidae larvae in living oak trees (Quercus L. spp.) were discovered in October 2006 in the Sierra Fria, Aguascalientes, Mexico. Prompted by this finding, we conducted a field study to determine the wood borer species and its host preference and geographical distribution, and to record biological and ecological data. Adult specimens were obtained by caging infested bole samples in laboratory conditions as well as by installing screen emergence cages on infested trees in several locations in the Sierra Fria. Twenty-nine line transects were sampled in search of wood boring symptoms in living oak trees. Forty adult specimens were obtained during the 32-month study. Based on morphology and behavior, the insect was identified as Crioprosopus magnificus LeConte (Coleoptera: Cerambycidae), a new geographical record for this species. The main host for this insect is Quercus potosina Trel., but it also occasionally attacks Quercus grisea Liemb. and Quercus eduardii Trel. Wood boring symptoms attributed to C. magnificus were found along the Sierra Fria. Beetle emergence was confirmed in four locations. Observations on insect mating, longevity and oviposition are provided.

Saperda lateralis rileyi, a new subspecies of Cerambycidae from parts of Louisiana, Mississippi, and Arkansas, is described, illustrated, and compared to the nominate subspecies. Intergradation between the two subspecies is described, and a map showing their distribution in the southeastern United States is provided. The synonymy of Saperda lateralis var. disconotataPic, 1907 with Saperda tridentata Olivier, 1795 is confirmed.

Adult Cicindela nebraskana Casey were captured and allowed to mate and oviposit in the laboratory. The resultant larvae provide the first formal description for all instars of this species. In 2008 and 2009, C. nebraskana was found at several new locations in Nebraska as well as in a previously unrecorded county (Dawes). Observations were made on its habitat preference, seasonality, and behavior.

Hemiphileurus elbitae Neita and Ratcliffe, new species, is described from Colombia, with supporting illustrations, a diagnosis, distribution, and observations on biology. Descriptions of the third instar and pupa are also included, along with a key to the known larvae of Hemiphileurus Kolbe species.

A description and illustrations of the third instar of Arctodium mahdii Hawkins (Coleoptera: Scarabaeidae: Melolonthinae: Lichniini), endemic to southern Chile, are given. The description is based on larvae reared from eggs laid by adults under laboratory conditions and on larvae collected in the field. Larvae of this species feed and live in the root zones of pastures. Characteristics of this species are its separated galea and lacinia, strongly curved maxillary palpus, size and orientation of abdominal spiracles, Y-shaped anal opening, absence of palidia, and the distribution and shape of setae on the raster.

The preimaginal development of Onthophagus incensus Say from egg to adult was studied. Development time took about 38 d under laboratory conditions. The embryonic period was approximately 4 d, the larval period 22 d, and the pupal period 10 d. Adults emerged from the brood mass to the soil surface 2 d after cuticle color had darkened. Morphological structures of the head capsule, such as the mouthparts, epipharynx, maxillae, mandibles, and labium-hypopharynx, appear to remain unchanged throughout all instars. Certain characteristics, such as setae, become longer and more numerous, and developmental advance is observed in the gradual sclerotization of structures such as the oncyli, mandibles, and epitormae. The male's terminal ampulla is present and visible during all three instars.

The taxonomic status and nomenclature of four species of Eleodes Eschscholtz are clarified. Eleodes anachronus, new species, which has been confused with Eleodes blapoides Eschscholtz, is described. Eleodes hepburni Champion, described from Mexico, is established as the valid name for a species found in both Mexico and the United States, with Eleodes compressitarsis(new synonymy), Eleodes beameri, Eleodes bryanti, and Eleodes palmerleensis, all described by Blaisdell, as synonyms. Eleodes ventricosus LeConte (new status) and Eleodes macrurus Champion (new status) are considered as subspecies of Eleodes spinipes Solier from Mexico. Eleodes ventricosa falli Blaisdell is a synonym of E. spinipes macrurus(new synonymy).Eleodes sonorae Champion is a synonym of Eleodes arcuatus Casey (new synonymy).

Several species of lady beetles are of conservation concern due to the extirpation of some species from large areas of North America. Historical lady beetle specimens from New Madrid and Pemiscot Counties, Missouri were examined and compared to recent captures. Adalia bipunctata (L.), Anatis mali (Say), Anatis labiculata (Say), and Coccinella novemnotata Herbst were present historically, but have not been collected since 1970. Coccinella septempunctata L., Harmonia axyridis (Pallas), and Neoharmonia venusta (Melsheimer) are relative newcomers to the study area. The non-native species, C. septempunctata and H. axyridis, combined accounted for the majority of lady beetle captures within the study area during 2008 and 2009. The implications of the historical data with regard to these changes are discussed.