Boros István (szerk.): A Magyar Természettudományi Múzeum évkönyve 4. (Budapest 1952)
Halászfy, É.: A synopsis of the Heteroptera of Hungary and the neighbouring areas. I. 1. Brachyplatidae; 2. Cydnidae
1. Farn. Brachyplatidae Leston (Plaíaspidae Dall., Coptosominae Kirk.) 1. Coptosoma Lap. Head scutiform flat, sharp, edges slightly recurving. Eyes big, hemispheroidal, exserted. Rostrum extending over socketing of third pair of legs. Wings twice as long as abdomen. Sternum not shiny, blackish grey. Legs finely, tibiae towards the tip densely, haired. Coptosoma scutellata Geoffr. A pale yellow streak around external ventral margin of abdomen. Yellow oval spots around stigmas. End of scutellum of males with semicircular emargination but not emarginated in females ; viewed from above end of scutellum in a straight line in males, bulging in female (figs. 5—6). Some misunderstandings might have arisen concerning the figures in literature of this species, because, disregarding its sexual dimorphism, illustrations were published withoutnoting sexes. Its odor is repulsive. 3,5—4,5 mm. — Larvae light colored, convex but not round, longish. Body covered by fine long hairs. — A characteristic insect of dry soils, though V i 11 i e r s (37, p. 39) collected it chiefly in wet ground. Prefers lime soil. According to Guide (8, p. 336) its occurrence on lime soils is local, but may turn up here in great numbers. Frequent also in wheat fields. M u 1 s a n t and R ey (29, p. 11) found it on oak twigs near the ground. On various plants, lime-claiming Papjlionaceae (33, p. 11) and chiefly Coronilla varia stems where larvae and moulted specimens sit. Frequent also on Lathyrus and Lupinus. From April to September, on plain, hilly, and mountainous areas. M anc ini caught it in 527 meters (28, p. 48). Widely spread, in and around Hungary but not yet published from Rumania. 2. fam. Cydnidae Billberg Slowly moving, ground dwelling insects. Found singly or more together in soil, under stones, in anthills, or around plants. Possibly they live on roots. Of their food habits very little is known. Frequent at end of summer, very rare in spring. In plain and mountainous areas. Nine genera occur in and around Hungary. Key to Genera of the Cydnidae* 1. Color light brown 2 — Color never light brown 3 2. 7,5—8 mm. Posterior femur and tibia strongly swollen (fig. 7.), convex 1. Stibaropus Dàll. — These never swollen (fig. 8.), flat 2. Byrsinus M. & R. 3. Cheeks extend far over clypeus, enclosing it ; scutellum barely as l'ong as broad at base 5. Cydnus F. — Cheeks not or barely extending over clypeus ; scutellum longer than broad at base 4 4. Anterior tibia shovel-like, its end flat and broad :. 5 — Anterior tibia three-edged and not flat 6 5. Anterior margin of head spinose with long hairs , 3. Aethus Dall. — Head anteriorly without spines and hairs .. 4. Geotomus M. & R. \ * Contrary to other authors, and in accordance with Villiers (38, p. 42) I relagate the genus Thyreocoris to Scutelleridae. « ,
