224 ENTOMOLOGICAL NEWS. [May, 'OQ 



July 19, 1908. I take pleasure in naming this species for Dr. 

 A. G. Ruthven, Chief Field Naturalist of the Michigan Bio- 

 logical Survey, in recognition of his aid and kindly interest in 



all my work. 



Genus ANAPHOTHRIPS Uzel. 



Anaphothrips striatus (Osborn). 



Male. Newly discovered.* Agrees well with the female, except that it 

 is smaller, and the abdomen is more slender and bluntly rounded at the 

 tip. Length of body .83 mm. ; width of prothorax .14 mm. ; width of 

 prothorax .14 mm.; width of mesothorax .16 mm.; width of abdomen .16 

 mm. All tarsi, as in female, unarmed. 



Two specimens taken with numerous females on sand-binder, 

 Ammophila arenaria, July 7, 1908. This species has long been 

 supposed to be parthenogenetic in nature, and was bred par- 

 thenogenetically for several generations by Hinds. It may be 

 doubted whether these sporadic males are ever functional. 



Genus BALIOTHRIPS Haliday. 



Baliothrips basalis n. sp. (Fig. 5). 



female. Getieral color of body brown, appearing to the unaided eye, 

 by reflected light, nearly black, with a transverse white band across the 

 pterothorax. Length of body 1.12 mm. ; width of prothorax .20 mm. ; 

 width of mesothorax .26 mm.; width of abdomen .26mm. Length of 

 antennal segments 15 //,, 36 p, 43 )U ,, 40 ^ 39 ^ 47 ^ 21 ^. 



Head slightly broader than long, cheeks slightly diverging behind the 

 eyes ; posterior portion transversely striated. Frons sharply emarginate 

 between antennae. One short postocular spine well toward each side of 



the head; four, sometimes three, 

 other spines in a transverse row 

 on each side nearer the median 

 line, the innermost one being 

 longest and standing directly 

 behind the ocellus of that side. 



A S P ine On either side f the an ' 

 terior ocellus, nearly between it 



and the two posterior ocelli, and a longer spine near inner margin of 

 each eye in front. Eyes rather prominent, black, with yellow margins. 

 Ocelli reddish orange, rather close together, posterior ones not contigu- 

 ous with eyes. Mouth cone reaching slightly past middle of prothorax ; 

 maxillary palpi two-segmented. Antennae seven-segmented, 2.2 times 

 as long as head. First segment cylindrical ; second barrel-shaped ; third 

 to fifth vase-like ; sixth broadest near base ; seventh slightly tapering. 



* I have found but one reference to a supposed male of Anaphothrips st rial us, naniHy 

 that of L. R. Gary, Bull. 83, Maine Agr. Exp. Station, June, 1902. Gary's figures plainly 

 show that his male was not of this species. 



