MAY FLIES AND MIDGES OF NEW YORK 325 



5 Caudal end of larva. x25 

 fi Caudal end of pupa. x25 



7 Dorsal aspect of abdominal segments of pupa. x25 



Tanytarsus exiguus 



8 Larva. x20 



Fibrous case of larva and pupa. xG 



11 Dorsal aspect of second abdominal segment of pupa. xlOO 



12 Ventral aspect of month parts of larva: 1, labinm ; md, mandible; 



mx, maxilla ; p, palpus. x400 



13 Antenna of larva. x250 



14 Latero-ventral aspect of head of larva: a, antenna: md. mandible: 



mx, maxilla ; 1, labinm 



15 Caudal end of pupa (male). xlOO 



PLATE 27 



1 P r o c 1 a d i u s p u s i 1 1 u s 



2 P r o i? 1 a d i u s c a 1 i g i n o s n s 



3 Procladius p i n g u i s 



4 P r o c 1 a d i n s s c a p n 1 a r i s 



5 Ablabesmyia carnea var. c. 



6 Ablabesmyia monilis 



7 T a n y p u s s t e 1 1 a t u s 



8 Ablabesmyia v e n u s t a 



9 Ablabesmyia d y a r i 



10 Ablabesmyia melanops 



11 Ablabesmyia flavifrons 



12 Ablabesmyia indecisa 



13 Ablabesmyia i n d ec i s a (after Williston) 



14 Ablabesmyia pallens, var. a. 



15 Tanypns culiciformis 



16 Chasmatonotus b i m a e u 1 a t u s 



PLATE 28 



1 C h i r o n o m u s b r a c h i a 1 i s 



2 C h i r o n o m u s s c a 1 a e n u s 



3 C h i r o n o m u s s p i 1 o p t e r u s (after Williston ) 



4 Chiron o m us taeniapennis 



5 C h i r o n o m u s c a 1 i g i n o s u s 



6 C h i r o n o m u s f 1 a v i c i n g u 1 a 



7 C b i r o n o m n s h a 1 1 e r a 1 i s 



8 C h i r o n o m u s f a 1 1 a x 



9 Chironomus riparius 



10 Chironomus b a r b i p e s 



11 Chironomus a n n u 1 a r i s 



12 Chironomus a 1 b i m a n u s ( male) 



13 Chironomus albimanns (female) 



14 Chironomus devinctus 



15 Chi r o n o m u s n i g r i c a n s 

 1 f! C h i r o n o m u s p e d e 1 1 u s 



1 7 C h i r o n o m us a b e r r a n s 



