Dr. Kassai Tibor - Dr. Murai Éva szerk.: Parasitologia Hungarica 6. (Budapest, 1973)

they were incubated at 27°C. After a period of 6 days, the larvae developed into male and female adults representing Pelode ra serrata (Körner in Osche, 1952) Dougherty, 1955, Pelodera teres (Schneider, 1866) Dougherty, 1955, and Neoaplectana bibi- onis Bovien, 1937. Por rearing, artificial media as potatoescrappings or nutrient agar were used; the latter was more suitable for development: 18 beetles were infested: six specimens by Neoapectana bibionis

, 4 by Pelodera serrata and 8 by Pelodera teres

. 425 nematode larvae were extracted from the 18 infested beetles. The nematode species Pelodera serrata and Pelodera teres were described above, while the description of Neoaplectana bibionis is as follows: 3-1. Neoaplectana bibionis Bovien, 1937 (fig. 4) Females (n= 10): L = 1.344-3.174 mm; a = 12-14-4; b = 6.9-13-7; c - 32-58.

8j V = 60.4-70.6 %. Males (n = 10): L = 0.600-1.250 mm; a = 12.5-14.4; b = 3-3-5-6; c = 16.2-31.3. The nematode species is characterized by six labial papillae surrounding the oral opening. Amphids present. Esophagus rhabditoid, consisting of median bulb, isthmus, and terminal bulb. Nerve ring obvious and excretory pore in front of nerve ring. One rectal cell clear beside end bulb of esophagus (Fig. 4B). Adult female sausage-shaped, with slightly tapering posterior end and bluntly conical tail.Uterus voluminous. Ovaries paired, strongly reflexed. Female tail 24-54 yU, short and tapering. Male tail bluntly rounded or obtuse. Sometimes a small tip present. Testis strongly reflexed. Spicules 53-54 u., yellowish or brownish, large and acute with the proximal

.portion headed. Gubernaculum about 42-44 /1. Numerous caudal papillae, a single 178