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As part of a comprehensive study of cicada-killer wasps (Sphecius spp.), we investigated the species and sex of their cicada prey. The 5 New World Sphecius species capture a total of 8 genera (Diceroprocta, Magicicada, Neocicada, Pacarina, Quesada, Tettigades, Tibicen, Uhleroides) and 38 species/subspecies of cicadas in the U.S.A., Cuba and Argentina. S. speciosus, the best-studied species, captures cicadas of 5 genera (Diceroprocta, Magicicada, Neocicada, Quesada, Tibicen,) and 30 species/subspecies, showing no significant overall prey sex bias. At specific sites where more than 50 cicada prey were recorded, the male:female ratio of 6 species brought to nests by Sphecius females varied between 0.524 and 2.259; Chi-square analysis revealed a significant male bias in overall Sphecius spp. prey sex ratios at these sites. The reported significant local variations in prey sex ratios are likely to be due to temporal variations in sex ratios of cicadas available to these opportunistic wasps.
Eight species of the genus Myrmeleon from mainland China are reviewed. One species, M. ferrugineipennis n. sp., is described as new to science. A key to the known species of Myrmeleon from mainland China and their geographic distributions are given.
Collections of insect fauna in native grasslands in Wisconsin have yielded 23 new state records for Chrysomelidae (Coleoptera). An examination of the Chrysomelidae holdings at the University of Wisconsin Insect Research Collection for purposes of inventory and determination confirmed these collections as new to Wisconsin. The habitat-specific nature of the collections aids in developing a list of possible species with a preference for native grasslands.
Misumenops pallidus life cycle and recruitment were studied under both laboratory and field conditions during two consecutive years. The life cycle included the egg stage, seven or eight juvenile instars and the adult stage. The first three instars developed within the egg sac, while the others developed as free-living individuals. Total body length increased from 3.2mm in the 3rd instar up to 14mm in adult females in average, and from 3.2mm up to 9mm in males. Predatory rate increased according to growth and maturity in females (females would consume 81% of all prey in the adult stage). Longevity of males and females as adults averaged 69.2 (± 30.76) and 161.3 (± 45.4) days, respectively. The developmental time from IV instar (the first free living instar) to the adult stage (114.2 ± 22.83 days) was very variable and long, suggesting that all IV instars of M. pallidus found in 94% of all sampling dates would represent different cohorts of the same parental generation. Three of potential prey: Rachiplusia nu defoliating larvae and young nymphs of Nezara viridula and Piezodorus guildinii exhibited complete synchrony with the local spider population in the studied commercial soybean plot.
With the aim of analyzing the dispersion and degree of ecological plasticity of populations of Haemagogus capricornii Lutz, 1904, and Hg. janthinomys Dyar, 1921, in different phytogeographical areas of Brazil, from specimens originating from 32 municipalities, biostatistical analyses were carried out on female and male specimens by means of the Fager affinity index (1957) and the real dominance coefficient. Based on the affinity index, it was observed that the populations of these two taxa did not present any tendency towards sympatry. Based on the dominance coefficient, it was found from mapping the geographical distribution of the species that Hg. janthinomys is the dominant species in Brazil. However, in some geographical areas, such as Rio de Janeiro and probably São Paulo, Santa Catarina, and Rio Grande do Sul, Hg. capricornii is the species with greater dominance. The real relationship between the species with regard to geographical space reinforces the idea that the two species occupy different habitats.
This is the first description of the egg morphology of Rosalia alpina (L.). Also the authors attempted to compare the morphological structure of the R. alpina egg with the egg morphology of other species from the genus Rosalia.
Two species of Entomobrya were found among 288 specimens of Collembola sampled in northern Algeria. The identification of the Entomobrya species requires some precautions and consideration of characters beyond color pattern. Preliminary identifications suggested the presence of E. mauretanicaHandschin, 1925 (new status) and E. clitellariaGuthrie, 1903, but a detailed examination of the specimens assigned to E. clitellaria showed that a new species was involved which is described here. Entomobrya mauretanica has only been collected once before, was described inadequately, and is redescribed here.
Rhamphomyia (Pararhamphomyia) pachymeriae sp. n. (Russia: Primorskiy Province, Amur Province) and R. (P.) pilositibia sp. n. (Russia: Amur Province) are described and illustrated. A key to East Palaearctic groups of Pararhamphomyia with at least biserial dorsocentrals, black legs and entirely black setose body is provided.
The species Mycterodus (Aconosimus) goricus (Dlabola, 1958) is currently known only from the Transcaucasus. For the first time this species is recorded from northeast Turkey. This species is redescribed and figured by examination of the specimens from northeast Turkey.
Aptesis cavigena sp. nov. from Turkey is described and figured. It is distinguished from the similar Aptesis nigritula Thomson (1885) by its enormous oral carina, widened lower part of occipital carina, excavated area between lower part of the malar space, oral and occipital carina, entirely black eye orbit, and larger size of the body.
A new species of genus Enicospilus Stephens (Hymenoptera: Ichneumonidae: Ophioninae), Enicospilus fatimahae from Malaysia is described and illustrated. It differs from Enicospilus teleus Gauld and Mitchell by having a propodeum posteriorly reticulated, nine hamuli, and yellowish markings on the 4th tergite.
Urophora hani n. sp. associated with Centaurea babylonica (L.) in Turkey (type locality: Hatay, skenderun, Çerçikaya) is described and illustrated. It resembles U. congrua (Loew), U. cardui (Linnaeus), U. variabilis Loew, and U. neuenschwanderi Freidberg in having the subbasal crossband extending to the posterior margin of the wing and the aculeus with one pair of steps, but readily differs from the former by the whitish microtrichose mesonotum (shining in U. neuenschwanderi), and from the latter by the discal and preapical crossbands widely divergent at the posterior margin, and from both by the tip of aculeus pointed (truncated in U. congrua, U. cardui and U. neuenschwanderi); the new species also differs from all other Palaearctic species of Urophora by the dark crossbands fused at anterior margin along R2 3 vein almost to level R4 5
Eight new species of scorpions are briefly described for the Greater Puerto Rico Region. The new species are: Cazierius tatae (Diplocentrinae), Centruroides jorgeorum, C. mariaorum, C. sasae, Rhopalurus virkkii, Tityus angelesae, T. estherae, and T. juliorum (Buthidae). A key to the identification of the Greater Puerto Rico Region scorpiofauna and biological remarks are provided.
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