REPORT OF THE STATE ENTOMOLOGIST I907 385 



Tetranycbus (red spider) 

 From red spider on citrus trees ...Mycodiplosis acarivora, C. 8J.7 



Triticum (wheat) 

 Bred from wheat heads Cecidomyia tritici 



Verbena 



Bred from rolled leaves Cecidomyia urtifolia, C. ai577 



" " Lestodiplosisverbenifolia, C. ai577a 



Yucca angustifolia 



Bred from pods Lestodiplosis yuccae, C. 1017 



Key to genera 



a Mesonotum usually greatly produced over the head; 14-26 segments; 



usually heavy species Hormomyia H. Lw. 



aa Mesonotum not greatly produced over the head ; only 14 segments ; usually 

 slender species 

 b Male with the two nodes of the antennal segments nearly equal, only 

 two circumfili to a segment ; claws simple 

 c Basal clasp segment with a conspicuous triangular process apic- 



ally Dentifibula n. g. 



(Type Cecidomyia viburni Felt) 

 cc Basal clasp segment with no process apically 



d Wings with the posterior area greatly produced, broadly rounded 



[pi. 38. fig- 3. 4] Lobopteromyia n. g. 



(Type C. f i 1 i c i s Felt) 

 dd Wings normal, usually with a length twice the width [pi. s7, fig- 6] 



Contarinia Rond. 

 bb Male with the two nodes of the antennal segments subequal, three cir- 

 cumfili, usually well developed, to each segment 

 c Claws toothed 



d All claws toothed Dichrodiplosis Kieff. 



dd Anterior claws toothed, posterior simple 



e Circumfili very uneven, the ventral loops greatly produced 

 / The middle circumfili rudimentary, apparently but two circum- 

 fili Bremia Rond. 



// Three well developed circumfili Aphidoletes Kieff. 



ee Circumfili even or nearly so 

 / Basal clasp segment lobed 



g Lobe apical, thte terminal clasp segment subapical 



Lobodiplosis n. g. 

 (Type Mycodiplosis acerina Felt) 



gg Lobe basal, setose Coquillcttomyia n. g. 



(Type Mycodiplosis lobata Felt) 

 // Basal clasp segment not distinctly lobed 



g Terminal clasp segment subfusiform, greatly dilated 



Karshomyia n. g. 

 (Type Mycodiplosis viburni Felt) 



13 



