PROC. ENT. SOC. WASH., VOL. 21, NO. 7, OCT., IQIQ 167 



Described from three females and one male received from Mr. 

 E. Avery Richmond, and said to have been swept on the blue- 

 berry "Barrens" at Cherryfield, Maine, by Mr. W. Colcord Woods, 

 August 20, 1915. 



This species occurs coincidentally with Optus melleus Gahan 

 (= Boisteres rhagoletis Richmond, as already pointed out by the 

 writer in Proc. U. S. Nat. Mus., vol. 55, 1919, p. 123) and may 

 have the same host, viz., Rhagoletis pomonella Walsh. Specimens 

 of melleus are in my possession swept by Mr. Woods on the same 

 date and apparently at the same place as the types of richmondi. 

 In his account of the blueberry insects of Maine (Maine Agric. 

 Exp. Sta. Bull. 244, 1915, p. 203) Mr. Woods makes mention of 

 having swept Opius melleus on August 20, 1915, but does not 

 mention the occurrence of another species. Since melleus and 

 richmondi are superficially quite similar it is possible that Mr. 

 Woods' observations and remarks may have been based in part 

 on richmondi. 



While superficially alike the two species are quite distinct and 

 easily separated by the fact that in melleus the second abscissa 

 of cubitus is no longer than first intercubitus, the parapsidal 

 grooves are complete, the second tergite is distinctly striated, and 

 the ovipositor is exserted the length of the body. 



Opius lectus, new species. 



This species, like richmondi (ante), runs to category 22 in the 

 writer's key (1. c.) and is very similar to both fuscipennis and 

 richmondi. It differs from fuscipennis by having the eyes and 

 ocelli larger, vertex less strongly arched above the top of eyes, 

 posterior orbits less than one -half the width of eye, basal half 

 of wing very faintly infuscated, propodeum a little more rugosely 

 sculptured, and the head and thorax in part black. It may be 

 distinguished from richmondi by the following description. 



Female. Length 3 mm. Setigerous punctures of the face distinct though 

 small; malar space shorter than width of mandible at base; antennae 33- 

 jointed in the type; flagellar joints thicker than in richmondi, those in middle 

 of flagellum barely longer than broad; stigma broad; first radial abscissa 

 about half as long as the width of stigma; second abscissa very slightly more 

 than one and one-third times the length of first intercubitus; ovipositor 

 exserted about one-third the length of abdomen, measured from base prob- 

 ably not as long as the abdomen. Antennal flagellum, eyes, frons and ver- 

 tex except a broad orbital line, occiput medially, prothorax for the most 

 part, mesopleura, metathorax, propodeum, more or less of first tergite, ovi- 

 positor sheaths and tarsal claws black; abdomen beyond the third tergite 

 tinged with brownish, remainder of body and legs dark reddish testaceous; 



