196 ENTOMOLOGICAL NEWS. [June, 



EuplectllS raffrayi n. sp. (fig. 5) c?. - Brown, impunctate, pubescence 

 coarse, sparse, form resembling E. linearis. Length 2.0 mm. 



Head with the occiput convex, finely carinate, tempora arcuate, con- 

 vergent, longer than the eye; frontal margin depressed, fovea three times 

 farther apart than from the eye, grooves straight, convergent. Antennae 

 unusually long, longer than the head and prothorax, loosely jointed. Pro- 

 thorax wider than the head, as wide as long, lateral edge minutely serru- 

 late; disc with a medial, fusiform groove extended to the angulated trans- 

 verse groove connecting the lateral foveae; the base with five ample, semi- 

 circular impressions. Elytra as long as wide, shoulder width almost as 

 wide as the prothorax; disc with a few traces of coarse impressions, the 

 base tripunctate and trilineate, the sutural line slightly arcuate beyond the 

 middle; second line one-quarter length, the third one-eighth. Abdominal 

 dorsals subequal, but rather slightly increasing in length, without any 

 basal impressions or carinae; ventrals 2, 3, 4, with a shallow medial im- 

 pression, 3d in the apical third with a transverse carina across the impres- 

 sion; 5th, the posterior margin, depressed; 6th, the base depressed; the 

 yth, or, according to Casey's etymological experiment, analoge to " ver- 

 texal" the podexal segment is lozenge-shaped, not carinate and almost 

 surrounded by the 6th. 



California. This is the largest species known. 



Among the Mexican species there are four Eupsenius which 

 may possibly occur inside of our limits. They are: 



E. politus Reitter, St. Thomas, 12 mm. long, unicolorous yellowish red, 

 occiput sulcate, front arcuately porrected, bearing two punctures (fig. 6). 



E. mexicanus Raffray, 1.3 mm. long, dark red, elytra brighter, front per- 

 pendicularly declive, above with a shallow transverse impression (fig. 7). 



E. nitidus Raffray, Mexico, 1.4 mm. long, front obliquely declive, before 

 the antennal line with a wide shallow impression and faint foveal sulcus 

 (fig. 8). 



E. (jibbicollis Raffray, Mexico, 1.55 mm. Dark red, elytra brighter, 

 vertex quadrate, trapezeous, front declive, depressed between the antennas. 

 Pronotum swollen along the median line (fig. 9). 



Ctenisis aequiiioctialis, Amazon. Fig. 10, antenna. 



iCtenisis dispar, Mexico. Fig. u, antenna. 



o 



THE AMERICAN GENERA OF SAPROMYZIN/E. 



By S. W. WILLISTON. 



In the examination recently of a considerable material in this 

 family, I have discovered all of the known American genera, all 

 of which, save perhaps Griphoneura, occur in North America. 

 As I shall not have the opportunity for some time of preparing 

 the results of my studies for publication, I herewith offer the fol- 



