the fauna of the superfamily bombylioidea was studied in alborz province, iran during 2012. two families (bombyliidae and mythicomyiidae), eight genera and ten species were identified, of which two species, exoprospora dispar loew, 1869; parageron lutescens (bezzi, 1925), are new records for the iranian fauna. an identification key for the species of the family mythicomyiidae known from iran is...

We generalize the degree-organizational view of real-world networks with broad degree distributions in a landscape analog with mountains (high-degree nodes) and valleys (low-degree nodes). For example, correlated degrees between adjacent nodes correspond to smooth landscapes (social networks), hierarchical networks to one-mountain landscapes (the Internet), and degree-disassortative networks wi...

Damavand is a large dormant stratovolcano in the Alborz Mountains of northern Iran located in one of the most populous provinces, which could be adversely affected by tephra fall from Damavand. The youngest known eruption is a lava flow on the western flanks with an age of 7.3 ka. The volcanic products are predominantly porphyritic trachyandesite. Three major young pumice deposits, named here a...

—In the American Southwest, the red squirrel (Tamiasciurus hudsonicus) occurs as disjunct populations in coniferous forests on mountaintops. There is a paucity of information concerning the species’ distribution and habitat in western New Mexico. I report new records that document and verify the occurrence of red squirrels in additional montane areas in west central New Mexico, including the Ma...

This study analyzed the variations in space of 8 body dimensions and 11 measures of the head of 1,244 adult Yemenite males, collected in 1933/34 by Coon in Yemen and in Hadhramawt. The aim was to evaluate the presence of geographic microdifferentiation of the populations settled in the different regions of Yemen at the time. Coon sub-divided the sample into six geographical areas according to b...

The genus Belyta Jurine, 1807 (Hymenoptera: Diapriidae) is studied in northern Iran. specimens were collected using Malaise traps the Alborz, Golestan, Gilan, Mazandaran and Qazvin Provinces during 2010–2018. seven species of are recorded from Iran for first time, abrupta Thomson, 1858, B. bicolor 1807, depressa elongata rugosicollis Kieffer, 1909, sanguinolenta Nees, 1834 validicornis 1858. Di...