324 NEW YORK STATE MUSEUM 



11 An egg mass of T any pus sp. (after Miall) 



12 A part of an egg string of C h i r o n o m u s sp. 



13-14 A part of the egg string of C li i r o n o m u s dorsalis (after 

 Miall and Ilaminoud) 



15 A ])art of an egg string of C li i r o n o m u s sp. 



16 Dorsal aspect of tliorax of a male Cbasmatonotus bimacula- 



t u s . x40 



PLATE 32 



Genitalia : d, dorsal keel ; 1, lateral ; s, superior ; i, inferior lobe 



1 Bezzia setulosa. Dorsal aspect. Male. xlOO 



2 T a n y p u s c u 1 i c i f o r m i s . Male. xlOO 



3 Ablabesmyia monilis. Male. xlOO 



4 Corynoneura celeripes ( after KiefCer ) 



5 D i a m e s a p r a e c o x ( after Kieffer ) 



6 Cbasmatonotus b i m a c vi 1 a t u s. Dorsal aspect. Male. x50 



7 C b i r o n o m u s f I a v i c i n g u 1 a . Dorsal aspect. Male. xlOO 



8 Cbirouomus modestus. Dorsal aspect. Male. xlOO 



9 C li i r o n o m u s modestus var. b. Latero-ventral aspect. Male. 



XlOO 



10 C b i r o n o m us f u 1 v i v e n t r i s . Male. xlOO 



11 Cbironomus modestus. Female. xlOO 



12 Cbironomus flavus. Ventral aspect. Male. xlOO 



13 Cbironomus decor us. Dorsal asi>ect. Male. xlOO 



14 Diamesa waltlii. Dorsal aspect. Male. x50 



PLATE 33 

 Genitalia: d, dorsal keel; 1, lateral lobe; s, superior lobe; i, inferior 

 lobe ; a, appendage of the superior lobe 



1 Ortbocladius ker villi (after Kieffer) 



2 Cricotopus exilis. Male. xlOO 



3 Tanytarsus dissimilis. Ventral aspect. Male. xl50 



4 Tanytarsus exiguus. Ventral aspect. Male. x350 



4a Tanytarsus exiguus. Male. Latero-ventral aspect. xlOO 



5 Tanytarsus dives. Male. Dorsal aspect. xlOO 



6 Metriocnemus par. Male. Lateral aspect. xlOO 



7 Ortbocladius abs Urdus. Lateral aspect. Female. xlOO 



8 Metriocnemus a t r a t u 1 u s ( after Kieffer) 



PLATE 34 

 Compontia cruciformis (=Thalassomyia frauenfeldiiV) 



1 Dorsal aspect uf larva (after Theobald, 1892) 



Hydrobaenus lugubris (after Fries) 



2 Dorsal aspect of head of larva 



3 Anterior prolegs of larva 



4 Lateral aspect of larva 



5 Lateral aspect of pupa 



6 Antenna of female 



7 Antenna of male 



8 Caudal appendage of pupa 



9 Wing of imago 



10 Male genitalia 



11 Lateral aspect of male claspcr 



