S. Mahunka szerk.: Folia Entomologica Hungarica 34/2. (Budapest, 1981)

The new species is highly resembling A. creparum Collin 1949 and may be distinguished only by the following few features: hungaricum sp.n. 1. All hairs of frons equally short. 2. Frons much longer than wide. 3. Third antennái joint brownish. 4. Pleura entirely blackish brown. 5. 8-10 very short hairs in front of long prescutellar dorsocentral bristles. 6. Legs yellow, but last joint of all tarsi blackish brown. creparum Collin 1. One pair of hairs on frons in front of ocellar triangle distinctly longer than others

. 2. Frons as long as wide. 3. Third antennái joint yellow. 4. Pleura black, though sutures yellow. 5. Only 5-6 short hairs in front of long prescutellar dorsocentral bristles. 6. Lengs entirely pale yellow. REFERENCES COLLIN, J.E. (1949): The Palaearctic Species of the Genus Aphaniosoma Beck. (Diptera, Chiromyidae). - Ann.Mag.nat.Hist., (12)2: 127-147. LYNEBORG, L. (1973): On some Chyromyidae from Southern Spain, with description of three new species of Aphaniosoma (Insecta, Diptera). - Steenstrupia, 3_: 51-56. PAPP, L. and SOÓS, Á. (1981): Tüskésszárnyu legyek - Szikilegyek, Heleomyzidae - Tethlnidae. - In: Fauna Hungáriáé, 1_5(5): 1-137. Author's address: Dr. Á. SOÓS Zoological Department Hungarian Natural History Museum H-1088 Budapest Baross u. 13 HUNGARY