86 INSECUTOR INSCITI^ MENSTRUUS 



Hystriciopsis obscura, new species. 



Length of body, 11 to 1 4 mm. ; of wing, 1 to 1 3 mm. One female, 

 January 29 ; 1 female and 1 1 males, January 30, 191 3, Matucana, 

 8,000 feet, on foliage. 



Slate-colored, blackish, slightly pollinose, more or less shining. Head 

 silvery-cinereous, occipital pile yellowish-gray. Thorax, scutellum, and 

 abdomen thinly dusted with gray pollen. Four thoracic vittae, the outer 

 ones heavier and extending farther back. Abdomen distinctly brown on 

 sides in male, blacker in female. PcJpi and antennae dark brown, for- 

 mer lighter on tips. Wings wholly deeply and evenly fuscous, also front 

 scale of tegulae. Hind scale of tegulae lighter, quite whitish save for the 

 black hairs. Pulvilli and claws yellowish-whitish, except tips of claws. 



Type, TD4 112 (fly and dissection of uterus). 



The type was dissected and uterus found to be subtubular, not strap- 

 like ; no maggots were developed as yet. Eggs were in only two rows, 

 uterus laterally flattened. 



This species bears a striking resemblance to Rhachoepalpus niiidus, 

 but is much more distinctly pollinose than that species ; to R. argenteus, 

 but is much less distinctly pollinose than latter ; and finally to R. cinereus, 

 but lacks the brassy-ash tinge of that species. 



Eujurinella, new genus. 



General characters of Jurinella, but first and second aristal joints both 

 elongate and about equal in length, about four times as long as v^ade ; 

 front tarsi of female conspicuously widened ; third antennal joint of female 

 about twice as long as the moderately elongate second joint, the front 

 edge of third joint almost straight and tip of joint rounded-truncate. No 

 ©cellar bristles, parafacials hairy, two proclinate orbital bristles in female, 

 extended proboscis a little longer than head-height ; palpi flattened and 

 vsadened on apical third, almost as long as proboscis beyond genicula- 

 tion ; eyes densely pilose, female front at vertex about one and one-half 

 times eye-width, cheeks of female more than one-half eye-height, epi- 

 stoma moderately produced. 



Two stemopleural ; two postsutural, the anterior and posterior ; only 

 one postacrostichal, being the posterior one ; no pre-acrostichal bristles. 

 Disk of scutellum densely beset with erect straight spinelike macrochaetae, 

 and with two lateral marginal pairs of ordinary ones. Abdomen with 

 spinelike macrochaetae ; first segment with only one lateral marginal ; 



