Pupa 



1 (2). Length 9—12 mm; tarsi without natatorial setae 



1. Notidobia Steph. (p. 663) 



2 (1). Length 11 — 15 mm; mid -tarsus with dense natatorial setae; fore 



tarsus with sparse setae 2. Sericostoma Latr. (p. 672) 



1. Genus Notidobia Stephens 



Full-grown larva. Length 14— 17 mm. Dorsal side of head dark chestnut 

 brown, with large, light dots, some of them transverse; light near occipital 

 foramen; gula wide, pointed posteriorly; gular suture distinct, with short, 

 single, posterior part. Mesonotum entire, light brown, with a few brownish 

 larger dots; metanotum membranous. Case 17— 18 mm long. 



Pupa. Length 9—14 mm. Wing sheaths of male pupae reaching to 

 segments 6—7, those of female pupae to segments 4—5. All tarsi without 

 natatorial setae. Gills with 3—5 filaments on segments 3—6. Case to 14 mm 

 long, attached at both ends. 



Mode of life and habitats. Phytophagous, living in shallow 

 water, on stones in brooks and rivulets, or in small brooks and ditches 

 with clear, running water; littoral of small clear lakes. Pupae are found 

 under stones or among roots. 



Distribution. European USSR, Caucasus. In addition, Europe. 



1. Notidobia ciliaris Linne 



Pictet, 1834: Plate XIV, Figure 5a.- Hagen, 1864:238.- Walser, 1864: 

 52-53.- McLachlan, 1865:78.- Meyer, 1867:167.- Meyer-Diir, 1 875 :401 . - 

 Klapaiek, 1893:43-47, Figure 12. - Struck, 1900:23, Plate III. Figure 28; 

 1903:10 8. Plate II, Figure 14.- Ulmer. 1903:80-81. Figures 16, 54, 77. 96, 

 112.- Thienemann, 1 905b : 520-521 , 570, 574, Figures 34, 116.- Siltala, 

 1905:10-13, Figure 3; 1907:524-52 9, Figure 12.- Ulmer. 1909:279. 320, 

 Figure 467b.- Lestage. 1 921 : 922, 932-940. Figures 332-336. - Lepneva, 

 1940:218.- Hanna, 1956:77-81.- Brindle, 1964:196, Figures 2,4. 



Full-grown larva. Length 12 — 16 mm. Head (Figure 854) uniformly 

 chestnut dark brown; light periocular spot of irregular form, with pointed 

 posterior median angle; a longitudinal ridge dorsal to the eye near spot, 

 separating a slightly flattened middle area of head; antenna situated near 

 anterior margin, dorsal to end of ridge. Frontoclypeus oblong, narrow; 

 frontal sutures curved anteriorly; posterior angle with 2 large, light dots 

 situated close together and with a median dot anteriorly. Four large, 

 transverse, oblong, light brownish dots lateral to posterior part of frontal 

 suture, some of them divided; small, indistinct, brownish dots lateral to 

 coronal suture. Ventral surface dark laterally, with light spots; middle 

 of ventral surface light, sometiines almost white, slightly brownish anteriorly 

 in dark specimens; small seta 18 and pit behind seta situated on brownish 

 dots. Gula brown or darker. Gular suture present (Siltala. 1905:3, 

 Figure 3a). 



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