A Systematic Study of the Antiiomyhnae of New York 7 



KEY TO THE GENERA OF ANTHOMYIINAE 

 The following key separates the genera of Anthomyiinae : 



9 

 1. Eyes hairy " 



Eyes bare ; •.•;•■•; ; ' *; 



2 Abdomen narrow, almost parallel-sided; eyes, m male contiguous, in female separated 



by at least one-third width of head • ■ Lasiops Meig. 



Abdomen broadly oval; eyes of male and female distinctly but not widely separated. 



Alliopsis Schnb. & Dzied. 



3. Propleura hairy ., 'J 



Propleura bare _ .• ■ • i^- ■ ;" 



4. Prosternum, pteropleura, and hypopleura hairy , Eremomyoides Mail. 



Prosternum, pteropleura, and hypopleura bare s'- ' ' • "aV if 



5. Arista bare; proboscis slender, elongated ^ • . Kmgia NLaAl. 



Arista plumose; proboscis robust, normal in length Anthomijta Meig. 



6. Hypopleura hairy in front of and behind spiracle ■ 7 



Hypopleura bare • • • • •,■•.•,■.■■ ; 



7 Arista bare; oral margin, in profile, distinctly protruded beyond vibrissal angle. _ 



Cahjthea Schnb. & Dzied . 



Arista plumose; oral margin, in profile, not noticeably protruded beyond vibrissal angle. 



Hydro-phoria Rob.-Desv. 



8. Lower calyptra distinctly protruding far beyond upper -9 



Lower calyptra not conspicuously protruding beyond upper, subequal . 1-5 



9 Pteropleura with a noticeable bristle on dorsal margin, below base of wing. . ,, „ 



Emmesomyia Mall. 



Pteropleura bare ;/ 'V ' ' i ' ' • ' V>' u " ^ ' 



10. Arista plumose Hydrophona Rob.-Desv 



Arista pubescent or bare ; ■■;■■■■/■■" i' j.' ' i " ' a 



11 Fore tibia with a long dorsal preapical bristle, equal in length to tarsal segments 1 and 



2- hind tibia with one.conspicuous dorsal bristle AnthomyiellaMa^l. 



Fore tibia with the dorsal preapical bristle not longer than tarsal segment 1; hind tibia 

 with more than one conspicuous dorsal bristle / o V Y " 'o" V^'-' j 



12 Mid tibia with a median anteroventral bristle ., Paregle Schnb^ & Dzied. 



Mid tibia with no median anteroventral bristle Pegomyia Rob.-Desv. 



13 Head, thorax, and abdomen whitish gray; thorax with three black, well-marked vittae; 



abdomen with black dorsocentral vitta and incisures Eustalomyia Kowarz 



Head, thorax, and abdomen not so marked ; ' • ' , V • ' ", il ' "u + 



14 Hind tibia with a very long, strong, mid anterodorsal and posterodorsal bristle, each about 



half as long as the tibia itself ... Prosalpia Pokorny 



Hind tibia with no such bristles on antero- and posterodorsal surfaces, the longest bristle 

 being less than half the length of the tibia itself .■■■:.■ f 



15. Cheeks broad; oral margin narrowly constricted anteriorly by the approximation ot 



the vibrissae, in extent reduced to a distance less than breadth of cheek directly ventrad 

 . ' lb 



Cheeks^narrow;' oral margin' not' constricted 'anteriorly by the approximation of the 



vibrissae, in extent equal to, or greater than, breadth of cheek directly ventrad of eye lU 



16. Arista with sparse plumose hairs; conspicuously swollen at base Neohylemyia MajL 



Arista pubescent or bare ,' ' T ' '.u ' f \'u 



17. Proboscis very slender, elongate, as long as, or longer than, length ot thorax. . 



•' Proboscimyia rJigot 



18 

 Proboscis normal, not so long as thorax /■•■■, x^ '•" "^ ^„ofo,.« 



18. Males with abdomen cylindrical; hind tibia with a series of setulae or hairs on postero- 



ventral surface; females with two or more strong, curved apical spines protruding 

 from ovipositor; frons of females less than one-third width of head.^^^^^.^ ^^^^_ 



