The Crane-Flies of New York — Part II 921 



(Subgenus Hoplolabis Oston Sackcn) 



1869 Hoplolabis O. S. Mon. Dipt. N. Amer,, part 4, p. 160. 



The subgenus Hoplolabis includes but three known species — the type 

 of the group, Erioptera (Hoplolabis) armata, discussed below; E. (H.) 

 bipartita 0. S., of western North America; and E. (H.) asiatica Alex., 

 of Japan. 



Erioptera (Hoplolabis) armata 0. S. 



1859 Erioptera armata O. S. Proc. Acad. Nat. Sci. Phila., p. 227. 



Erioptera armata is a rather common fly thruout the northeastern 

 United States. A larva was found in the sand along the banks of Fall 

 Creek, Ithaca, New York, on May 16, 1917. This larva was of the 

 typical eriopterine form, being elongate, terete, and with the spiracular 

 disk surrounded by five subequal lobes. It was placed in rearing and 

 transformed to an adult female on May 31. This larva was found associ- 

 ated with numerous hexatomine larvae, such as Eriocera spinosa, E. 

 longicornis, and E. cinerea. 



The following description is from the cast pupal skin. 



Length, about 7 mm. 



Cephalic crest consisting of two moderately large, slightly divergent lobes which are 

 acutely pointed at tips; lobes directed strongly outward and bearing a seta on outer face. 

 Labrum acutelj^ pointed. Labial lobes large , divergent, almost straight across caudal margin. 

 Sheaths of maxillary palpi stout, rather pointed at tips. Pronotal breathing horns broad 

 at base, tapering to slender apices, bases conspicuously wrinkled; a small setiferous 

 tubercle before base of each breathing horn. Mesonotum at crest (Plate LXIX, 373) 

 with numerous short, chitinized points. Lateral angle of thorax with two setae; a strong 

 seta above wing axil. Leg sheaths with middle tarsi ending conspicuously before tarsi of 

 other legs. 



Each abdominal segment before posterior margin with a transverse row of slender black 

 spicules or short bristles on tergum and sternum, and smaller areas on pleura. Lateral 

 abdominal spiracles distinct. »Setae on pleura just ventrad of spiracle, and on tergum just 

 above transverse row of spicules. Female cauda with tergal valves elongated, gently 

 upcurved, unarmed; sternal valves shorter, blunt; at base of cauda, on dorsum of eighth seg- 

 ment, four small darkened tubercles which are produced into slender tips. 



Neanoiype. — Cast pupal skin, Ithaca, New York, May 31, 1917. 



(Subgenus Mesocyphona Osten Sacken) 



1869 Mesocyphona 0. S. Mon. Dipt. N. Amer., part 4, p. 161. 



Mesocyphona is one of the larger subgenera of Erioptera, reaching its 

 maximum of specific development in the Tropics of the New World. 



