CHIRONOMID MIDGES OF CALIFORNIA — SUBLETTE 103 



Ablabesmyia Johannsen, 1905, while retaining Edwards' Groups B to 

 F as Pentaneura sensu stricto. Fittkau (1957) has named two new 

 genera, Thienemannimyia and Conchapelopia, which include parts of 

 Groups C and D of Edwards. There are other species groups within 

 Edwards' Groups C and D that were not named. Group F appears 

 to be the equivalent of Nilotanypus Kieffer, 1923. Group E contains 

 the type-species, Pentaneura grisea Phillipi, sensu Edwards, and is thus 

 Pentaneura in the strict sense. The remaining Group B is unnamed. 

 Since the status of several types of North American Pentaneura are 

 described inadequately as yet, I am refraining at this time from 

 establishing or using subgeneric units for Edwards' Groups B to F. 



Anatopynia (Anatopynia) submarginella, new species 



Figure 3a 



Holotype male: USNM 65512, Modoc Co., Fandango Pass, May 

 15, 1948, W. 



Postocular bristles in double and triple rows reaching from below 

 eyes up to point medial to dorsal extension of eyes. Clypeus wider 

 than long, with about 16 bristles. Palpi ratio 15 :25 :20 :30. Antennal 

 ratio 1.64. 



Head, thorax, and abdomen dark brown overlaid with greenish- 

 white pollen ; pronotum, pleural areas, and posterolateral area on each 

 abdominal segment lighter brown; pollen on abdomen concentrated 

 on posterior half of each segment, giving, in certain light, vittate 

 appearance; incisures of abdomen somewhat lighter; pollen absent 

 between vittae on thorax. Pro thorax with 13 fine lateral bristles, 

 covered all over with fine micro trichae. Sternopleuron with 3 fine 

 lateral bristles above and 2 below anepisternal suture. Halteres yel- 

 lowish, stalk basally infuscate. Prealar bristles 26; dorsolateral 

 bristles multiserial; scutellum with 26 large staggered bristles in pos- 

 terior transverse row; anteriorly about 14 fine strewn bristles; antero- 

 lateral bristles about 18. 



Fore legs with few long hairs 3 times diameter of tarsus; legs paler 

 brown than body. Fore tibia with almost straight spur with 9 side 

 teeth; spur 0.8 as long as apical tibial diameter. Middle tibial spurs 

 straight with 10 side teeth; spurs of equal length. Spurs of hind leg 

 straight with 8 teeth on longer, 10 on shorter. Spur ratio 55:45. 

 Comb of 9 bristles. 



