Rovartani Közlemények (Folia Entomologica Hungarica 3/3-4. Budapest, 1950)

scriptum given above is so characteristic that when I take also into consideration the other differences I can confidently conclude that hungariea T o m a 1 a is not a variety but a „bona species" belonging to the genus Chamaesphecia. Ch. h/ungarica occurs in Hungary in the areas of the Danube and the Tisza. Alfred Schleppnik found it in Austria in the tidal area by the March (Verhandlungen der zool.-bot, Ges. Wien, 1935, p. 129). Now that it has gained its well merited place among the other species it will be demonstrated probably from other countries too. Derostenus arcticus (Hymen., Chalc.) species nova e Rossia arctica. (Figura 1 in textu) Auctore: dr. J. Erdős 9. Color corporis generatim viridi-aureus. Facies inagis cupreo-micans, mandibulae brunneo-fulvae, oculi rubiginosogrisei, ocelli fulvi, antennae fusco-nigrae, squamulae et pars mesosterni infra originem praealarum testacea, metanotuin cyaneum, abdomen viridi-fuscum marginé segmentorum 2—5 sat late sordide testaceo-limbato, subtus brunnescens, coxae aeneae, femora fusca apice late testaceo, proti'biae fusco-testaceae, mesoet metatibiae albidae, protarsi fuscescentes, meso- et metatarsi flavi sous ultimis parum infuscatis. Caput thoracis latitudine, facie (Fig. 1 b) lata, oculis maxiniis, hirtis, orbitis interioribus emarginatis, antennis supra lineam ocularem insertis, inter antennas tuberculo fere laevi, facie supra antennas impressa, dense punctata, scrobibus convergentibus et in unum confluentibus, in fronte lineam tenuissimam obliquam ad orbitas emittentibus ; facie infra, antennas fere laevi, clypeo distincto, vix producto, oculis basin mandibularum non attingentibus. Vertex (Fig. 1 c) sat longus, iniquus tribus impressionibus profundis, quarum prima ante ocellum anterirem, secunda et tertia extra ocellos posticos iacet, ocellis linea incisa non connexis, sat dense punctatus, postice in medio, inter impressiones ocellares, acutissime marginatus, ita, ut margo acutus verticaliter sursum emei'geret in lamellám medio emargiaatam, in loco impressionum ocellarium autem teres, pone oculos iterum, acute marginatus, praesertim in angulo supero-postico oculorum (oculi enim a latere conspecti orbiculato-triangulif

ormes apparent!) lobo lamelliformiter sat producto, qui margo in orbitis supernis parum, in orbitis externis vero usque ad dimidium oculi continuatur. — Antennae (Fig. 1 d) sat crassae, flagello dense et longe griseo-piloso, scapo lineari, pedicello