CHIRONOMID MIDGES OF CALIFORNIA — SUBLETTE 109 



1955, R. W. Bushing; 1 female, Green Valley, Solano Co., June 8, 

 1948, E. M. Bohart. 



Key to North American Species of Anatopynia Johannsen 



{Anatopynia alaskensis (Malloch) omitted because insufficiently described) 



1. Pulvilli present; wings banded or witti coalesced spots (subgenus Psectro- 



tanypus) 10 



Pulvilli absent; wings hyaline or with central dark cloud over cross veins 

 or with isolated spots or dusky clouds 2 



2. Wings hairy at tip or occasionally well haired; no wing markings except for 



occasionally infuscate cross veins (subgenus Anatopynia) 3 



Wings always well haired; with spots or clouds (subgenus Macropelopia) . 6 



3. Legs yellowish; with distinct dark preapical femoral band and sub-basal 



tibial band; tarsi infuscate; cross veins slightly darkened. 



A. florens (Johannsen) 

 Legs yellowish or somewhat infuscate, no distinct dark bands 4 



4. Thorax and abdomen marked with dark brown or black; fore leg ratio about 



0.65; cross veins not darkened 5 



Thorax and abdomen marked with brown; leg ratio about 0.8; cross vein 

 infuscate A. decolorata (Malloch) 



5. Thorax and abdomen marked with black; dististyle of male genitalia long 



and evenly tapered to tip (Malloch, 1915, pi. 27, fig. 10). 



A. marginella (Malloch) 

 Thorax and abdomen marked with dark brown; dististyle of male genitalia 

 shorter and parallel-sided almost to tip (fig. 3a). 



A. submarginella, new species 



6. Thorax yellow, marked with somewhat polished, blackish-brown vittae; 



abdomen entirely yellow; wing with faint brown band across middle. 



A. algens (Coquillett) 

 Thorax and abdomen fuscous, marked with paler brown 7 



7. Small species (body length female, 3.0 mm.) ; legs pale fuscous with only 



extreme tips of tibiae darkened A. fastuosa (Johannsen) 



Larger species (body length female, 3.5-4.0 mm.) ; legs darker, with both 

 femora and tarsi darkened apically 8 



8. Fourth tarsal segment of middle legs two-thirds as long as third; fifth seg- 



ment only slightly smaller than fourth 9 



Fourth tarsal segment only one-half as long as third; fifth tarsal segment 

 very small. Fore tarsus not distinctly bearded . A. miripes (Coquillett) 



9. Fore tarsus not bearded; dististyle of male genitalia slightly curved (Malloch, 



1915, pi. 28, fig. 2) A. hirtipennis (Loew) Malloch 



Fore tarsus with long hairs, 6 times tarsal diameter; dististyle straight, 

 almost parallel-sided (fig. 36) A. aclines^ new species 



10. Mesonotal ground color dark brown to opaque black 11 



Ground color yellowish-white to brown 12 



11. Femora wdth only subapical brown band; fore tarsus bearded. 



A. guttularis (Coquillett) 



Femora with two brown bands; fore tarsus with only short hairs, 3 times 



diameter of tarsus A. veniista (Coquillett) 



12. Wing with only dark spot over cross vein A. brunnea Roback 



Wing with bands or spots or both 13 



